Searched +hist:57 +hist:fd1c63 (Results 1 - 8 of 8) sorted by relevance
| /linux-master/tools/testing/selftests/bpf/benchs/ | ||
| H A D | run_bench_bloom_filter_map.sh | 57fd1c63 Wed Oct 27 17:45:03 MDT 2021 Joanne Koong <joannekoong@fb.com> bpf/benchs: Add benchmark tests for bloom filter throughput + false positive This patch adds benchmark tests for the throughput (for lookups + updates) and the false positive rate of bloom filter lookups, as well as some minor refactoring of the bash script for running the benchmarks. These benchmarks show that as the number of hash functions increases, the throughput and the false positive rate of the bloom filter decreases. >From the benchmark data, the approximate average false-positive rates are roughly as follows: 1 hash function = ~30% 2 hash functions = ~15% 3 hash functions = ~5% 4 hash functions = ~2.5% 5 hash functions = ~1% 6 hash functions = ~0.5% 7 hash functions = ~0.35% 8 hash functions = ~0.15% 9 hash functions = ~0.1% 10 hash functions = ~0% For reference data, the benchmarks run on one thread on a machine with one numa node for 1 to 5 hash functions for 8-byte and 64-byte values are as follows: 1 hash function: 50k entries 8-byte value Lookups - 51.1 M/s operations Updates - 33.6 M/s operations False positive rate: 24.15% 64-byte value Lookups - 15.7 M/s operations Updates - 15.1 M/s operations False positive rate: 24.2% 100k entries 8-byte value Lookups - 51.0 M/s operations Updates - 33.4 M/s operations False positive rate: 24.04% 64-byte value Lookups - 15.6 M/s operations Updates - 14.6 M/s operations False positive rate: 24.06% 500k entries 8-byte value Lookups - 50.5 M/s operations Updates - 33.1 M/s operations False positive rate: 27.45% 64-byte value Lookups - 15.6 M/s operations Updates - 14.2 M/s operations False positive rate: 27.42% 1 mil entries 8-byte value Lookups - 49.7 M/s operations Updates - 32.9 M/s operations False positive rate: 27.45% 64-byte value Lookups - 15.4 M/s operations Updates - 13.7 M/s operations False positive rate: 27.58% 2.5 mil entries 8-byte value Lookups - 47.2 M/s operations Updates - 31.8 M/s operations False positive rate: 30.94% 64-byte value Lookups - 15.3 M/s operations Updates - 13.2 M/s operations False positive rate: 30.95% 5 mil entries 8-byte value Lookups - 41.1 M/s operations Updates - 28.1 M/s operations False positive rate: 31.01% 64-byte value Lookups - 13.3 M/s operations Updates - 11.4 M/s operations False positive rate: 30.98% 2 hash functions: 50k entries 8-byte value Lookups - 34.1 M/s operations Updates - 20.1 M/s operations False positive rate: 9.13% 64-byte value Lookups - 8.4 M/s operations Updates - 7.9 M/s operations False positive rate: 9.21% 100k entries 8-byte value Lookups - 33.7 M/s operations Updates - 18.9 M/s operations False positive rate: 9.13% 64-byte value Lookups - 8.4 M/s operations Updates - 7.7 M/s operations False positive rate: 9.19% 500k entries 8-byte value Lookups - 32.7 M/s operations Updates - 18.1 M/s operations False positive rate: 12.61% 64-byte value Lookups - 8.4 M/s operations Updates - 7.5 M/s operations False positive rate: 12.61% 1 mil entries 8-byte value Lookups - 30.6 M/s operations Updates - 18.9 M/s operations False positive rate: 12.54% 64-byte value Lookups - 8.0 M/s operations Updates - 7.0 M/s operations False positive rate: 12.52% 2.5 mil entries 8-byte value Lookups - 25.3 M/s operations Updates - 16.7 M/s operations False positive rate: 16.77% 64-byte value Lookups - 7.9 M/s operations Updates - 6.5 M/s operations False positive rate: 16.88% 5 mil entries 8-byte value Lookups - 20.8 M/s operations Updates - 14.7 M/s operations False positive rate: 16.78% 64-byte value Lookups - 7.0 M/s operations Updates - 6.0 M/s operations False positive rate: 16.78% 3 hash functions: 50k entries 8-byte value Lookups - 25.1 M/s operations Updates - 14.6 M/s operations False positive rate: 7.65% 64-byte value Lookups - 5.8 M/s operations Updates - 5.5 M/s operations False positive rate: 7.58% 100k entries 8-byte value Lookups - 24.7 M/s operations Updates - 14.1 M/s operations False positive rate: 7.71% 64-byte value Lookups - 5.8 M/s operations Updates - 5.3 M/s operations False positive rate: 7.62% 500k entries 8-byte value Lookups - 22.9 M/s operations Updates - 13.9 M/s operations False positive rate: 2.62% 64-byte value Lookups - 5.6 M/s operations Updates - 4.8 M/s operations False positive rate: 2.7% 1 mil entries 8-byte value Lookups - 19.8 M/s operations Updates - 12.6 M/s operations False positive rate: 2.60% 64-byte value Lookups - 5.3 M/s operations Updates - 4.4 M/s operations False positive rate: 2.69% 2.5 mil entries 8-byte value Lookups - 16.2 M/s operations Updates - 10.7 M/s operations False positive rate: 4.49% 64-byte value Lookups - 4.9 M/s operations Updates - 4.1 M/s operations False positive rate: 4.41% 5 mil entries 8-byte value Lookups - 18.8 M/s operations Updates - 9.2 M/s operations False positive rate: 4.45% 64-byte value Lookups - 5.2 M/s operations Updates - 3.9 M/s operations False positive rate: 4.54% 4 hash functions: 50k entries 8-byte value Lookups - 19.7 M/s operations Updates - 11.1 M/s operations False positive rate: 1.01% 64-byte value Lookups - 4.4 M/s operations Updates - 4.0 M/s operations False positive rate: 1.00% 100k entries 8-byte value Lookups - 19.5 M/s operations Updates - 10.9 M/s operations False positive rate: 1.00% 64-byte value Lookups - 4.3 M/s operations Updates - 3.9 M/s operations False positive rate: 0.97% 500k entries 8-byte value Lookups - 18.2 M/s operations Updates - 10.6 M/s operations False positive rate: 2.05% 64-byte value Lookups - 4.3 M/s operations Updates - 3.7 M/s operations False positive rate: 2.05% 1 mil entries 8-byte value Lookups - 15.5 M/s operations Updates - 9.6 M/s operations False positive rate: 1.99% 64-byte value Lookups - 4.0 M/s operations Updates - 3.4 M/s operations False positive rate: 1.99% 2.5 mil entries 8-byte value Lookups - 13.8 M/s operations Updates - 7.7 M/s operations False positive rate: 3.91% 64-byte value Lookups - 3.7 M/s operations Updates - 3.6 M/s operations False positive rate: 3.78% 5 mil entries 8-byte value Lookups - 13.0 M/s operations Updates - 6.9 M/s operations False positive rate: 3.93% 64-byte value Lookups - 3.5 M/s operations Updates - 3.7 M/s operations False positive rate: 3.39% 5 hash functions: 50k entries 8-byte value Lookups - 16.4 M/s operations Updates - 9.1 M/s operations False positive rate: 0.78% 64-byte value Lookups - 3.5 M/s operations Updates - 3.2 M/s operations False positive rate: 0.77% 100k entries 8-byte value Lookups - 16.3 M/s operations Updates - 9.0 M/s operations False positive rate: 0.79% 64-byte value Lookups - 3.5 M/s operations Updates - 3.2 M/s operations False positive rate: 0.78% 500k entries 8-byte value Lookups - 15.1 M/s operations Updates - 8.8 M/s operations False positive rate: 1.82% 64-byte value Lookups - 3.4 M/s operations Updates - 3.0 M/s operations False positive rate: 1.78% 1 mil entries 8-byte value Lookups - 13.2 M/s operations Updates - 7.8 M/s operations False positive rate: 1.81% 64-byte value Lookups - 3.2 M/s operations Updates - 2.8 M/s operations False positive rate: 1.80% 2.5 mil entries 8-byte value Lookups - 10.5 M/s operations Updates - 5.9 M/s operations False positive rate: 0.29% 64-byte value Lookups - 3.2 M/s operations Updates - 2.4 M/s operations False positive rate: 0.28% 5 mil entries 8-byte value Lookups - 9.6 M/s operations Updates - 5.7 M/s operations False positive rate: 0.30% 64-byte value Lookups - 3.2 M/s operations Updates - 2.7 M/s operations False positive rate: 0.30% Signed-off-by: Joanne Koong <joannekoong@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20211027234504.30744-5-joannekoong@fb.com 57fd1c63 Wed Oct 27 17:45:03 MDT 2021 Joanne Koong <joannekoong@fb.com> bpf/benchs: Add benchmark tests for bloom filter throughput + false positive This patch adds benchmark tests for the throughput (for lookups + updates) and the false positive rate of bloom filter lookups, as well as some minor refactoring of the bash script for running the benchmarks. These benchmarks show that as the number of hash functions increases, the throughput and the false positive rate of the bloom filter decreases. >From the benchmark data, the approximate average false-positive rates are roughly as follows: 1 hash function = ~30% 2 hash functions = ~15% 3 hash functions = ~5% 4 hash functions = ~2.5% 5 hash functions = ~1% 6 hash functions = ~0.5% 7 hash functions = ~0.35% 8 hash functions = ~0.15% 9 hash functions = ~0.1% 10 hash functions = ~0% For reference data, the benchmarks run on one thread on a machine with one numa node for 1 to 5 hash functions for 8-byte and 64-byte values are as follows: 1 hash function: 50k entries 8-byte value Lookups - 51.1 M/s operations Updates - 33.6 M/s operations False positive rate: 24.15% 64-byte value Lookups - 15.7 M/s operations Updates - 15.1 M/s operations False positive rate: 24.2% 100k entries 8-byte value Lookups - 51.0 M/s operations Updates - 33.4 M/s operations False positive rate: 24.04% 64-byte value Lookups - 15.6 M/s operations Updates - 14.6 M/s operations False positive rate: 24.06% 500k entries 8-byte value Lookups - 50.5 M/s operations Updates - 33.1 M/s operations False positive rate: 27.45% 64-byte value Lookups - 15.6 M/s operations Updates - 14.2 M/s operations False positive rate: 27.42% 1 mil entries 8-byte value Lookups - 49.7 M/s operations Updates - 32.9 M/s operations False positive rate: 27.45% 64-byte value Lookups - 15.4 M/s operations Updates - 13.7 M/s operations False positive rate: 27.58% 2.5 mil entries 8-byte value Lookups - 47.2 M/s operations Updates - 31.8 M/s operations False positive rate: 30.94% 64-byte value Lookups - 15.3 M/s operations Updates - 13.2 M/s operations False positive rate: 30.95% 5 mil entries 8-byte value Lookups - 41.1 M/s operations Updates - 28.1 M/s operations False positive rate: 31.01% 64-byte value Lookups - 13.3 M/s operations Updates - 11.4 M/s operations False positive rate: 30.98% 2 hash functions: 50k entries 8-byte value Lookups - 34.1 M/s operations Updates - 20.1 M/s operations False positive rate: 9.13% 64-byte value Lookups - 8.4 M/s operations Updates - 7.9 M/s operations False positive rate: 9.21% 100k entries 8-byte value Lookups - 33.7 M/s operations Updates - 18.9 M/s operations False positive rate: 9.13% 64-byte value Lookups - 8.4 M/s operations Updates - 7.7 M/s operations False positive rate: 9.19% 500k entries 8-byte value Lookups - 32.7 M/s operations Updates - 18.1 M/s operations False positive rate: 12.61% 64-byte value Lookups - 8.4 M/s operations Updates - 7.5 M/s operations False positive rate: 12.61% 1 mil entries 8-byte value Lookups - 30.6 M/s operations Updates - 18.9 M/s operations False positive rate: 12.54% 64-byte value Lookups - 8.0 M/s operations Updates - 7.0 M/s operations False positive rate: 12.52% 2.5 mil entries 8-byte value Lookups - 25.3 M/s operations Updates - 16.7 M/s operations False positive rate: 16.77% 64-byte value Lookups - 7.9 M/s operations Updates - 6.5 M/s operations False positive rate: 16.88% 5 mil entries 8-byte value Lookups - 20.8 M/s operations Updates - 14.7 M/s operations False positive rate: 16.78% 64-byte value Lookups - 7.0 M/s operations Updates - 6.0 M/s operations False positive rate: 16.78% 3 hash functions: 50k entries 8-byte value Lookups - 25.1 M/s operations Updates - 14.6 M/s operations False positive rate: 7.65% 64-byte value Lookups - 5.8 M/s operations Updates - 5.5 M/s operations False positive rate: 7.58% 100k entries 8-byte value Lookups - 24.7 M/s operations Updates - 14.1 M/s operations False positive rate: 7.71% 64-byte value Lookups - 5.8 M/s operations Updates - 5.3 M/s operations False positive rate: 7.62% 500k entries 8-byte value Lookups - 22.9 M/s operations Updates - 13.9 M/s operations False positive rate: 2.62% 64-byte value Lookups - 5.6 M/s operations Updates - 4.8 M/s operations False positive rate: 2.7% 1 mil entries 8-byte value Lookups - 19.8 M/s operations Updates - 12.6 M/s operations False positive rate: 2.60% 64-byte value Lookups - 5.3 M/s operations Updates - 4.4 M/s operations False positive rate: 2.69% 2.5 mil entries 8-byte value Lookups - 16.2 M/s operations Updates - 10.7 M/s operations False positive rate: 4.49% 64-byte value Lookups - 4.9 M/s operations Updates - 4.1 M/s operations False positive rate: 4.41% 5 mil entries 8-byte value Lookups - 18.8 M/s operations Updates - 9.2 M/s operations False positive rate: 4.45% 64-byte value Lookups - 5.2 M/s operations Updates - 3.9 M/s operations False positive rate: 4.54% 4 hash functions: 50k entries 8-byte value Lookups - 19.7 M/s operations Updates - 11.1 M/s operations False positive rate: 1.01% 64-byte value Lookups - 4.4 M/s operations Updates - 4.0 M/s operations False positive rate: 1.00% 100k entries 8-byte value Lookups - 19.5 M/s operations Updates - 10.9 M/s operations False positive rate: 1.00% 64-byte value Lookups - 4.3 M/s operations Updates - 3.9 M/s operations False positive rate: 0.97% 500k entries 8-byte value Lookups - 18.2 M/s operations Updates - 10.6 M/s operations False positive rate: 2.05% 64-byte value Lookups - 4.3 M/s operations Updates - 3.7 M/s operations False positive rate: 2.05% 1 mil entries 8-byte value Lookups - 15.5 M/s operations Updates - 9.6 M/s operations False positive rate: 1.99% 64-byte value Lookups - 4.0 M/s operations Updates - 3.4 M/s operations False positive rate: 1.99% 2.5 mil entries 8-byte value Lookups - 13.8 M/s operations Updates - 7.7 M/s operations False positive rate: 3.91% 64-byte value Lookups - 3.7 M/s operations Updates - 3.6 M/s operations False positive rate: 3.78% 5 mil entries 8-byte value Lookups - 13.0 M/s operations Updates - 6.9 M/s operations False positive rate: 3.93% 64-byte value Lookups - 3.5 M/s operations Updates - 3.7 M/s operations False positive rate: 3.39% 5 hash functions: 50k entries 8-byte value Lookups - 16.4 M/s operations Updates - 9.1 M/s operations False positive rate: 0.78% 64-byte value Lookups - 3.5 M/s operations Updates - 3.2 M/s operations False positive rate: 0.77% 100k entries 8-byte value Lookups - 16.3 M/s operations Updates - 9.0 M/s operations False positive rate: 0.79% 64-byte value Lookups - 3.5 M/s operations Updates - 3.2 M/s operations False positive rate: 0.78% 500k entries 8-byte value Lookups - 15.1 M/s operations Updates - 8.8 M/s operations False positive rate: 1.82% 64-byte value Lookups - 3.4 M/s operations Updates - 3.0 M/s operations False positive rate: 1.78% 1 mil entries 8-byte value Lookups - 13.2 M/s operations Updates - 7.8 M/s operations False positive rate: 1.81% 64-byte value Lookups - 3.2 M/s operations Updates - 2.8 M/s operations False positive rate: 1.80% 2.5 mil entries 8-byte value Lookups - 10.5 M/s operations Updates - 5.9 M/s operations False positive rate: 0.29% 64-byte value Lookups - 3.2 M/s operations Updates - 2.4 M/s operations False positive rate: 0.28% 5 mil entries 8-byte value Lookups - 9.6 M/s operations Updates - 5.7 M/s operations False positive rate: 0.30% 64-byte value Lookups - 3.2 M/s operations Updates - 2.7 M/s operations False positive rate: 0.30% Signed-off-by: Joanne Koong <joannekoong@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20211027234504.30744-5-joannekoong@fb.com |
| H A D | bench_bloom_filter_map.c | 57fd1c63 Wed Oct 27 17:45:03 MDT 2021 Joanne Koong <joannekoong@fb.com> bpf/benchs: Add benchmark tests for bloom filter throughput + false positive This patch adds benchmark tests for the throughput (for lookups + updates) and the false positive rate of bloom filter lookups, as well as some minor refactoring of the bash script for running the benchmarks. These benchmarks show that as the number of hash functions increases, the throughput and the false positive rate of the bloom filter decreases. >From the benchmark data, the approximate average false-positive rates are roughly as follows: 1 hash function = ~30% 2 hash functions = ~15% 3 hash functions = ~5% 4 hash functions = ~2.5% 5 hash functions = ~1% 6 hash functions = ~0.5% 7 hash functions = ~0.35% 8 hash functions = ~0.15% 9 hash functions = ~0.1% 10 hash functions = ~0% For reference data, the benchmarks run on one thread on a machine with one numa node for 1 to 5 hash functions for 8-byte and 64-byte values are as follows: 1 hash function: 50k entries 8-byte value Lookups - 51.1 M/s operations Updates - 33.6 M/s operations False positive rate: 24.15% 64-byte value Lookups - 15.7 M/s operations Updates - 15.1 M/s operations False positive rate: 24.2% 100k entries 8-byte value Lookups - 51.0 M/s operations Updates - 33.4 M/s operations False positive rate: 24.04% 64-byte value Lookups - 15.6 M/s operations Updates - 14.6 M/s operations False positive rate: 24.06% 500k entries 8-byte value Lookups - 50.5 M/s operations Updates - 33.1 M/s operations False positive rate: 27.45% 64-byte value Lookups - 15.6 M/s operations Updates - 14.2 M/s operations False positive rate: 27.42% 1 mil entries 8-byte value Lookups - 49.7 M/s operations Updates - 32.9 M/s operations False positive rate: 27.45% 64-byte value Lookups - 15.4 M/s operations Updates - 13.7 M/s operations False positive rate: 27.58% 2.5 mil entries 8-byte value Lookups - 47.2 M/s operations Updates - 31.8 M/s operations False positive rate: 30.94% 64-byte value Lookups - 15.3 M/s operations Updates - 13.2 M/s operations False positive rate: 30.95% 5 mil entries 8-byte value Lookups - 41.1 M/s operations Updates - 28.1 M/s operations False positive rate: 31.01% 64-byte value Lookups - 13.3 M/s operations Updates - 11.4 M/s operations False positive rate: 30.98% 2 hash functions: 50k entries 8-byte value Lookups - 34.1 M/s operations Updates - 20.1 M/s operations False positive rate: 9.13% 64-byte value Lookups - 8.4 M/s operations Updates - 7.9 M/s operations False positive rate: 9.21% 100k entries 8-byte value Lookups - 33.7 M/s operations Updates - 18.9 M/s operations False positive rate: 9.13% 64-byte value Lookups - 8.4 M/s operations Updates - 7.7 M/s operations False positive rate: 9.19% 500k entries 8-byte value Lookups - 32.7 M/s operations Updates - 18.1 M/s operations False positive rate: 12.61% 64-byte value Lookups - 8.4 M/s operations Updates - 7.5 M/s operations False positive rate: 12.61% 1 mil entries 8-byte value Lookups - 30.6 M/s operations Updates - 18.9 M/s operations False positive rate: 12.54% 64-byte value Lookups - 8.0 M/s operations Updates - 7.0 M/s operations False positive rate: 12.52% 2.5 mil entries 8-byte value Lookups - 25.3 M/s operations Updates - 16.7 M/s operations False positive rate: 16.77% 64-byte value Lookups - 7.9 M/s operations Updates - 6.5 M/s operations False positive rate: 16.88% 5 mil entries 8-byte value Lookups - 20.8 M/s operations Updates - 14.7 M/s operations False positive rate: 16.78% 64-byte value Lookups - 7.0 M/s operations Updates - 6.0 M/s operations False positive rate: 16.78% 3 hash functions: 50k entries 8-byte value Lookups - 25.1 M/s operations Updates - 14.6 M/s operations False positive rate: 7.65% 64-byte value Lookups - 5.8 M/s operations Updates - 5.5 M/s operations False positive rate: 7.58% 100k entries 8-byte value Lookups - 24.7 M/s operations Updates - 14.1 M/s operations False positive rate: 7.71% 64-byte value Lookups - 5.8 M/s operations Updates - 5.3 M/s operations False positive rate: 7.62% 500k entries 8-byte value Lookups - 22.9 M/s operations Updates - 13.9 M/s operations False positive rate: 2.62% 64-byte value Lookups - 5.6 M/s operations Updates - 4.8 M/s operations False positive rate: 2.7% 1 mil entries 8-byte value Lookups - 19.8 M/s operations Updates - 12.6 M/s operations False positive rate: 2.60% 64-byte value Lookups - 5.3 M/s operations Updates - 4.4 M/s operations False positive rate: 2.69% 2.5 mil entries 8-byte value Lookups - 16.2 M/s operations Updates - 10.7 M/s operations False positive rate: 4.49% 64-byte value Lookups - 4.9 M/s operations Updates - 4.1 M/s operations False positive rate: 4.41% 5 mil entries 8-byte value Lookups - 18.8 M/s operations Updates - 9.2 M/s operations False positive rate: 4.45% 64-byte value Lookups - 5.2 M/s operations Updates - 3.9 M/s operations False positive rate: 4.54% 4 hash functions: 50k entries 8-byte value Lookups - 19.7 M/s operations Updates - 11.1 M/s operations False positive rate: 1.01% 64-byte value Lookups - 4.4 M/s operations Updates - 4.0 M/s operations False positive rate: 1.00% 100k entries 8-byte value Lookups - 19.5 M/s operations Updates - 10.9 M/s operations False positive rate: 1.00% 64-byte value Lookups - 4.3 M/s operations Updates - 3.9 M/s operations False positive rate: 0.97% 500k entries 8-byte value Lookups - 18.2 M/s operations Updates - 10.6 M/s operations False positive rate: 2.05% 64-byte value Lookups - 4.3 M/s operations Updates - 3.7 M/s operations False positive rate: 2.05% 1 mil entries 8-byte value Lookups - 15.5 M/s operations Updates - 9.6 M/s operations False positive rate: 1.99% 64-byte value Lookups - 4.0 M/s operations Updates - 3.4 M/s operations False positive rate: 1.99% 2.5 mil entries 8-byte value Lookups - 13.8 M/s operations Updates - 7.7 M/s operations False positive rate: 3.91% 64-byte value Lookups - 3.7 M/s operations Updates - 3.6 M/s operations False positive rate: 3.78% 5 mil entries 8-byte value Lookups - 13.0 M/s operations Updates - 6.9 M/s operations False positive rate: 3.93% 64-byte value Lookups - 3.5 M/s operations Updates - 3.7 M/s operations False positive rate: 3.39% 5 hash functions: 50k entries 8-byte value Lookups - 16.4 M/s operations Updates - 9.1 M/s operations False positive rate: 0.78% 64-byte value Lookups - 3.5 M/s operations Updates - 3.2 M/s operations False positive rate: 0.77% 100k entries 8-byte value Lookups - 16.3 M/s operations Updates - 9.0 M/s operations False positive rate: 0.79% 64-byte value Lookups - 3.5 M/s operations Updates - 3.2 M/s operations False positive rate: 0.78% 500k entries 8-byte value Lookups - 15.1 M/s operations Updates - 8.8 M/s operations False positive rate: 1.82% 64-byte value Lookups - 3.4 M/s operations Updates - 3.0 M/s operations False positive rate: 1.78% 1 mil entries 8-byte value Lookups - 13.2 M/s operations Updates - 7.8 M/s operations False positive rate: 1.81% 64-byte value Lookups - 3.2 M/s operations Updates - 2.8 M/s operations False positive rate: 1.80% 2.5 mil entries 8-byte value Lookups - 10.5 M/s operations Updates - 5.9 M/s operations False positive rate: 0.29% 64-byte value Lookups - 3.2 M/s operations Updates - 2.4 M/s operations False positive rate: 0.28% 5 mil entries 8-byte value Lookups - 9.6 M/s operations Updates - 5.7 M/s operations False positive rate: 0.30% 64-byte value Lookups - 3.2 M/s operations Updates - 2.7 M/s operations False positive rate: 0.30% Signed-off-by: Joanne Koong <joannekoong@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20211027234504.30744-5-joannekoong@fb.com 57fd1c63 Wed Oct 27 17:45:03 MDT 2021 Joanne Koong <joannekoong@fb.com> bpf/benchs: Add benchmark tests for bloom filter throughput + false positive This patch adds benchmark tests for the throughput (for lookups + updates) and the false positive rate of bloom filter lookups, as well as some minor refactoring of the bash script for running the benchmarks. These benchmarks show that as the number of hash functions increases, the throughput and the false positive rate of the bloom filter decreases. >From the benchmark data, the approximate average false-positive rates are roughly as follows: 1 hash function = ~30% 2 hash functions = ~15% 3 hash functions = ~5% 4 hash functions = ~2.5% 5 hash functions = ~1% 6 hash functions = ~0.5% 7 hash functions = ~0.35% 8 hash functions = ~0.15% 9 hash functions = ~0.1% 10 hash functions = ~0% For reference data, the benchmarks run on one thread on a machine with one numa node for 1 to 5 hash functions for 8-byte and 64-byte values are as follows: 1 hash function: 50k entries 8-byte value Lookups - 51.1 M/s operations Updates - 33.6 M/s operations False positive rate: 24.15% 64-byte value Lookups - 15.7 M/s operations Updates - 15.1 M/s operations False positive rate: 24.2% 100k entries 8-byte value Lookups - 51.0 M/s operations Updates - 33.4 M/s operations False positive rate: 24.04% 64-byte value Lookups - 15.6 M/s operations Updates - 14.6 M/s operations False positive rate: 24.06% 500k entries 8-byte value Lookups - 50.5 M/s operations Updates - 33.1 M/s operations False positive rate: 27.45% 64-byte value Lookups - 15.6 M/s operations Updates - 14.2 M/s operations False positive rate: 27.42% 1 mil entries 8-byte value Lookups - 49.7 M/s operations Updates - 32.9 M/s operations False positive rate: 27.45% 64-byte value Lookups - 15.4 M/s operations Updates - 13.7 M/s operations False positive rate: 27.58% 2.5 mil entries 8-byte value Lookups - 47.2 M/s operations Updates - 31.8 M/s operations False positive rate: 30.94% 64-byte value Lookups - 15.3 M/s operations Updates - 13.2 M/s operations False positive rate: 30.95% 5 mil entries 8-byte value Lookups - 41.1 M/s operations Updates - 28.1 M/s operations False positive rate: 31.01% 64-byte value Lookups - 13.3 M/s operations Updates - 11.4 M/s operations False positive rate: 30.98% 2 hash functions: 50k entries 8-byte value Lookups - 34.1 M/s operations Updates - 20.1 M/s operations False positive rate: 9.13% 64-byte value Lookups - 8.4 M/s operations Updates - 7.9 M/s operations False positive rate: 9.21% 100k entries 8-byte value Lookups - 33.7 M/s operations Updates - 18.9 M/s operations False positive rate: 9.13% 64-byte value Lookups - 8.4 M/s operations Updates - 7.7 M/s operations False positive rate: 9.19% 500k entries 8-byte value Lookups - 32.7 M/s operations Updates - 18.1 M/s operations False positive rate: 12.61% 64-byte value Lookups - 8.4 M/s operations Updates - 7.5 M/s operations False positive rate: 12.61% 1 mil entries 8-byte value Lookups - 30.6 M/s operations Updates - 18.9 M/s operations False positive rate: 12.54% 64-byte value Lookups - 8.0 M/s operations Updates - 7.0 M/s operations False positive rate: 12.52% 2.5 mil entries 8-byte value Lookups - 25.3 M/s operations Updates - 16.7 M/s operations False positive rate: 16.77% 64-byte value Lookups - 7.9 M/s operations Updates - 6.5 M/s operations False positive rate: 16.88% 5 mil entries 8-byte value Lookups - 20.8 M/s operations Updates - 14.7 M/s operations False positive rate: 16.78% 64-byte value Lookups - 7.0 M/s operations Updates - 6.0 M/s operations False positive rate: 16.78% 3 hash functions: 50k entries 8-byte value Lookups - 25.1 M/s operations Updates - 14.6 M/s operations False positive rate: 7.65% 64-byte value Lookups - 5.8 M/s operations Updates - 5.5 M/s operations False positive rate: 7.58% 100k entries 8-byte value Lookups - 24.7 M/s operations Updates - 14.1 M/s operations False positive rate: 7.71% 64-byte value Lookups - 5.8 M/s operations Updates - 5.3 M/s operations False positive rate: 7.62% 500k entries 8-byte value Lookups - 22.9 M/s operations Updates - 13.9 M/s operations False positive rate: 2.62% 64-byte value Lookups - 5.6 M/s operations Updates - 4.8 M/s operations False positive rate: 2.7% 1 mil entries 8-byte value Lookups - 19.8 M/s operations Updates - 12.6 M/s operations False positive rate: 2.60% 64-byte value Lookups - 5.3 M/s operations Updates - 4.4 M/s operations False positive rate: 2.69% 2.5 mil entries 8-byte value Lookups - 16.2 M/s operations Updates - 10.7 M/s operations False positive rate: 4.49% 64-byte value Lookups - 4.9 M/s operations Updates - 4.1 M/s operations False positive rate: 4.41% 5 mil entries 8-byte value Lookups - 18.8 M/s operations Updates - 9.2 M/s operations False positive rate: 4.45% 64-byte value Lookups - 5.2 M/s operations Updates - 3.9 M/s operations False positive rate: 4.54% 4 hash functions: 50k entries 8-byte value Lookups - 19.7 M/s operations Updates - 11.1 M/s operations False positive rate: 1.01% 64-byte value Lookups - 4.4 M/s operations Updates - 4.0 M/s operations False positive rate: 1.00% 100k entries 8-byte value Lookups - 19.5 M/s operations Updates - 10.9 M/s operations False positive rate: 1.00% 64-byte value Lookups - 4.3 M/s operations Updates - 3.9 M/s operations False positive rate: 0.97% 500k entries 8-byte value Lookups - 18.2 M/s operations Updates - 10.6 M/s operations False positive rate: 2.05% 64-byte value Lookups - 4.3 M/s operations Updates - 3.7 M/s operations False positive rate: 2.05% 1 mil entries 8-byte value Lookups - 15.5 M/s operations Updates - 9.6 M/s operations False positive rate: 1.99% 64-byte value Lookups - 4.0 M/s operations Updates - 3.4 M/s operations False positive rate: 1.99% 2.5 mil entries 8-byte value Lookups - 13.8 M/s operations Updates - 7.7 M/s operations False positive rate: 3.91% 64-byte value Lookups - 3.7 M/s operations Updates - 3.6 M/s operations False positive rate: 3.78% 5 mil entries 8-byte value Lookups - 13.0 M/s operations Updates - 6.9 M/s operations False positive rate: 3.93% 64-byte value Lookups - 3.5 M/s operations Updates - 3.7 M/s operations False positive rate: 3.39% 5 hash functions: 50k entries 8-byte value Lookups - 16.4 M/s operations Updates - 9.1 M/s operations False positive rate: 0.78% 64-byte value Lookups - 3.5 M/s operations Updates - 3.2 M/s operations False positive rate: 0.77% 100k entries 8-byte value Lookups - 16.3 M/s operations Updates - 9.0 M/s operations False positive rate: 0.79% 64-byte value Lookups - 3.5 M/s operations Updates - 3.2 M/s operations False positive rate: 0.78% 500k entries 8-byte value Lookups - 15.1 M/s operations Updates - 8.8 M/s operations False positive rate: 1.82% 64-byte value Lookups - 3.4 M/s operations Updates - 3.0 M/s operations False positive rate: 1.78% 1 mil entries 8-byte value Lookups - 13.2 M/s operations Updates - 7.8 M/s operations False positive rate: 1.81% 64-byte value Lookups - 3.2 M/s operations Updates - 2.8 M/s operations False positive rate: 1.80% 2.5 mil entries 8-byte value Lookups - 10.5 M/s operations Updates - 5.9 M/s operations False positive rate: 0.29% 64-byte value Lookups - 3.2 M/s operations Updates - 2.4 M/s operations False positive rate: 0.28% 5 mil entries 8-byte value Lookups - 9.6 M/s operations Updates - 5.7 M/s operations False positive rate: 0.30% 64-byte value Lookups - 3.2 M/s operations Updates - 2.7 M/s operations False positive rate: 0.30% Signed-off-by: Joanne Koong <joannekoong@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20211027234504.30744-5-joannekoong@fb.com |
| H A D | run_common.sh | 57fd1c63 Wed Oct 27 17:45:03 MDT 2021 Joanne Koong <joannekoong@fb.com> bpf/benchs: Add benchmark tests for bloom filter throughput + false positive This patch adds benchmark tests for the throughput (for lookups + updates) and the false positive rate of bloom filter lookups, as well as some minor refactoring of the bash script for running the benchmarks. These benchmarks show that as the number of hash functions increases, the throughput and the false positive rate of the bloom filter decreases. >From the benchmark data, the approximate average false-positive rates are roughly as follows: 1 hash function = ~30% 2 hash functions = ~15% 3 hash functions = ~5% 4 hash functions = ~2.5% 5 hash functions = ~1% 6 hash functions = ~0.5% 7 hash functions = ~0.35% 8 hash functions = ~0.15% 9 hash functions = ~0.1% 10 hash functions = ~0% For reference data, the benchmarks run on one thread on a machine with one numa node for 1 to 5 hash functions for 8-byte and 64-byte values are as follows: 1 hash function: 50k entries 8-byte value Lookups - 51.1 M/s operations Updates - 33.6 M/s operations False positive rate: 24.15% 64-byte value Lookups - 15.7 M/s operations Updates - 15.1 M/s operations False positive rate: 24.2% 100k entries 8-byte value Lookups - 51.0 M/s operations Updates - 33.4 M/s operations False positive rate: 24.04% 64-byte value Lookups - 15.6 M/s operations Updates - 14.6 M/s operations False positive rate: 24.06% 500k entries 8-byte value Lookups - 50.5 M/s operations Updates - 33.1 M/s operations False positive rate: 27.45% 64-byte value Lookups - 15.6 M/s operations Updates - 14.2 M/s operations False positive rate: 27.42% 1 mil entries 8-byte value Lookups - 49.7 M/s operations Updates - 32.9 M/s operations False positive rate: 27.45% 64-byte value Lookups - 15.4 M/s operations Updates - 13.7 M/s operations False positive rate: 27.58% 2.5 mil entries 8-byte value Lookups - 47.2 M/s operations Updates - 31.8 M/s operations False positive rate: 30.94% 64-byte value Lookups - 15.3 M/s operations Updates - 13.2 M/s operations False positive rate: 30.95% 5 mil entries 8-byte value Lookups - 41.1 M/s operations Updates - 28.1 M/s operations False positive rate: 31.01% 64-byte value Lookups - 13.3 M/s operations Updates - 11.4 M/s operations False positive rate: 30.98% 2 hash functions: 50k entries 8-byte value Lookups - 34.1 M/s operations Updates - 20.1 M/s operations False positive rate: 9.13% 64-byte value Lookups - 8.4 M/s operations Updates - 7.9 M/s operations False positive rate: 9.21% 100k entries 8-byte value Lookups - 33.7 M/s operations Updates - 18.9 M/s operations False positive rate: 9.13% 64-byte value Lookups - 8.4 M/s operations Updates - 7.7 M/s operations False positive rate: 9.19% 500k entries 8-byte value Lookups - 32.7 M/s operations Updates - 18.1 M/s operations False positive rate: 12.61% 64-byte value Lookups - 8.4 M/s operations Updates - 7.5 M/s operations False positive rate: 12.61% 1 mil entries 8-byte value Lookups - 30.6 M/s operations Updates - 18.9 M/s operations False positive rate: 12.54% 64-byte value Lookups - 8.0 M/s operations Updates - 7.0 M/s operations False positive rate: 12.52% 2.5 mil entries 8-byte value Lookups - 25.3 M/s operations Updates - 16.7 M/s operations False positive rate: 16.77% 64-byte value Lookups - 7.9 M/s operations Updates - 6.5 M/s operations False positive rate: 16.88% 5 mil entries 8-byte value Lookups - 20.8 M/s operations Updates - 14.7 M/s operations False positive rate: 16.78% 64-byte value Lookups - 7.0 M/s operations Updates - 6.0 M/s operations False positive rate: 16.78% 3 hash functions: 50k entries 8-byte value Lookups - 25.1 M/s operations Updates - 14.6 M/s operations False positive rate: 7.65% 64-byte value Lookups - 5.8 M/s operations Updates - 5.5 M/s operations False positive rate: 7.58% 100k entries 8-byte value Lookups - 24.7 M/s operations Updates - 14.1 M/s operations False positive rate: 7.71% 64-byte value Lookups - 5.8 M/s operations Updates - 5.3 M/s operations False positive rate: 7.62% 500k entries 8-byte value Lookups - 22.9 M/s operations Updates - 13.9 M/s operations False positive rate: 2.62% 64-byte value Lookups - 5.6 M/s operations Updates - 4.8 M/s operations False positive rate: 2.7% 1 mil entries 8-byte value Lookups - 19.8 M/s operations Updates - 12.6 M/s operations False positive rate: 2.60% 64-byte value Lookups - 5.3 M/s operations Updates - 4.4 M/s operations False positive rate: 2.69% 2.5 mil entries 8-byte value Lookups - 16.2 M/s operations Updates - 10.7 M/s operations False positive rate: 4.49% 64-byte value Lookups - 4.9 M/s operations Updates - 4.1 M/s operations False positive rate: 4.41% 5 mil entries 8-byte value Lookups - 18.8 M/s operations Updates - 9.2 M/s operations False positive rate: 4.45% 64-byte value Lookups - 5.2 M/s operations Updates - 3.9 M/s operations False positive rate: 4.54% 4 hash functions: 50k entries 8-byte value Lookups - 19.7 M/s operations Updates - 11.1 M/s operations False positive rate: 1.01% 64-byte value Lookups - 4.4 M/s operations Updates - 4.0 M/s operations False positive rate: 1.00% 100k entries 8-byte value Lookups - 19.5 M/s operations Updates - 10.9 M/s operations False positive rate: 1.00% 64-byte value Lookups - 4.3 M/s operations Updates - 3.9 M/s operations False positive rate: 0.97% 500k entries 8-byte value Lookups - 18.2 M/s operations Updates - 10.6 M/s operations False positive rate: 2.05% 64-byte value Lookups - 4.3 M/s operations Updates - 3.7 M/s operations False positive rate: 2.05% 1 mil entries 8-byte value Lookups - 15.5 M/s operations Updates - 9.6 M/s operations False positive rate: 1.99% 64-byte value Lookups - 4.0 M/s operations Updates - 3.4 M/s operations False positive rate: 1.99% 2.5 mil entries 8-byte value Lookups - 13.8 M/s operations Updates - 7.7 M/s operations False positive rate: 3.91% 64-byte value Lookups - 3.7 M/s operations Updates - 3.6 M/s operations False positive rate: 3.78% 5 mil entries 8-byte value Lookups - 13.0 M/s operations Updates - 6.9 M/s operations False positive rate: 3.93% 64-byte value Lookups - 3.5 M/s operations Updates - 3.7 M/s operations False positive rate: 3.39% 5 hash functions: 50k entries 8-byte value Lookups - 16.4 M/s operations Updates - 9.1 M/s operations False positive rate: 0.78% 64-byte value Lookups - 3.5 M/s operations Updates - 3.2 M/s operations False positive rate: 0.77% 100k entries 8-byte value Lookups - 16.3 M/s operations Updates - 9.0 M/s operations False positive rate: 0.79% 64-byte value Lookups - 3.5 M/s operations Updates - 3.2 M/s operations False positive rate: 0.78% 500k entries 8-byte value Lookups - 15.1 M/s operations Updates - 8.8 M/s operations False positive rate: 1.82% 64-byte value Lookups - 3.4 M/s operations Updates - 3.0 M/s operations False positive rate: 1.78% 1 mil entries 8-byte value Lookups - 13.2 M/s operations Updates - 7.8 M/s operations False positive rate: 1.81% 64-byte value Lookups - 3.2 M/s operations Updates - 2.8 M/s operations False positive rate: 1.80% 2.5 mil entries 8-byte value Lookups - 10.5 M/s operations Updates - 5.9 M/s operations False positive rate: 0.29% 64-byte value Lookups - 3.2 M/s operations Updates - 2.4 M/s operations False positive rate: 0.28% 5 mil entries 8-byte value Lookups - 9.6 M/s operations Updates - 5.7 M/s operations False positive rate: 0.30% 64-byte value Lookups - 3.2 M/s operations Updates - 2.7 M/s operations False positive rate: 0.30% Signed-off-by: Joanne Koong <joannekoong@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20211027234504.30744-5-joannekoong@fb.com 57fd1c63 Wed Oct 27 17:45:03 MDT 2021 Joanne Koong <joannekoong@fb.com> bpf/benchs: Add benchmark tests for bloom filter throughput + false positive This patch adds benchmark tests for the throughput (for lookups + updates) and the false positive rate of bloom filter lookups, as well as some minor refactoring of the bash script for running the benchmarks. These benchmarks show that as the number of hash functions increases, the throughput and the false positive rate of the bloom filter decreases. >From the benchmark data, the approximate average false-positive rates are roughly as follows: 1 hash function = ~30% 2 hash functions = ~15% 3 hash functions = ~5% 4 hash functions = ~2.5% 5 hash functions = ~1% 6 hash functions = ~0.5% 7 hash functions = ~0.35% 8 hash functions = ~0.15% 9 hash functions = ~0.1% 10 hash functions = ~0% For reference data, the benchmarks run on one thread on a machine with one numa node for 1 to 5 hash functions for 8-byte and 64-byte values are as follows: 1 hash function: 50k entries 8-byte value Lookups - 51.1 M/s operations Updates - 33.6 M/s operations False positive rate: 24.15% 64-byte value Lookups - 15.7 M/s operations Updates - 15.1 M/s operations False positive rate: 24.2% 100k entries 8-byte value Lookups - 51.0 M/s operations Updates - 33.4 M/s operations False positive rate: 24.04% 64-byte value Lookups - 15.6 M/s operations Updates - 14.6 M/s operations False positive rate: 24.06% 500k entries 8-byte value Lookups - 50.5 M/s operations Updates - 33.1 M/s operations False positive rate: 27.45% 64-byte value Lookups - 15.6 M/s operations Updates - 14.2 M/s operations False positive rate: 27.42% 1 mil entries 8-byte value Lookups - 49.7 M/s operations Updates - 32.9 M/s operations False positive rate: 27.45% 64-byte value Lookups - 15.4 M/s operations Updates - 13.7 M/s operations False positive rate: 27.58% 2.5 mil entries 8-byte value Lookups - 47.2 M/s operations Updates - 31.8 M/s operations False positive rate: 30.94% 64-byte value Lookups - 15.3 M/s operations Updates - 13.2 M/s operations False positive rate: 30.95% 5 mil entries 8-byte value Lookups - 41.1 M/s operations Updates - 28.1 M/s operations False positive rate: 31.01% 64-byte value Lookups - 13.3 M/s operations Updates - 11.4 M/s operations False positive rate: 30.98% 2 hash functions: 50k entries 8-byte value Lookups - 34.1 M/s operations Updates - 20.1 M/s operations False positive rate: 9.13% 64-byte value Lookups - 8.4 M/s operations Updates - 7.9 M/s operations False positive rate: 9.21% 100k entries 8-byte value Lookups - 33.7 M/s operations Updates - 18.9 M/s operations False positive rate: 9.13% 64-byte value Lookups - 8.4 M/s operations Updates - 7.7 M/s operations False positive rate: 9.19% 500k entries 8-byte value Lookups - 32.7 M/s operations Updates - 18.1 M/s operations False positive rate: 12.61% 64-byte value Lookups - 8.4 M/s operations Updates - 7.5 M/s operations False positive rate: 12.61% 1 mil entries 8-byte value Lookups - 30.6 M/s operations Updates - 18.9 M/s operations False positive rate: 12.54% 64-byte value Lookups - 8.0 M/s operations Updates - 7.0 M/s operations False positive rate: 12.52% 2.5 mil entries 8-byte value Lookups - 25.3 M/s operations Updates - 16.7 M/s operations False positive rate: 16.77% 64-byte value Lookups - 7.9 M/s operations Updates - 6.5 M/s operations False positive rate: 16.88% 5 mil entries 8-byte value Lookups - 20.8 M/s operations Updates - 14.7 M/s operations False positive rate: 16.78% 64-byte value Lookups - 7.0 M/s operations Updates - 6.0 M/s operations False positive rate: 16.78% 3 hash functions: 50k entries 8-byte value Lookups - 25.1 M/s operations Updates - 14.6 M/s operations False positive rate: 7.65% 64-byte value Lookups - 5.8 M/s operations Updates - 5.5 M/s operations False positive rate: 7.58% 100k entries 8-byte value Lookups - 24.7 M/s operations Updates - 14.1 M/s operations False positive rate: 7.71% 64-byte value Lookups - 5.8 M/s operations Updates - 5.3 M/s operations False positive rate: 7.62% 500k entries 8-byte value Lookups - 22.9 M/s operations Updates - 13.9 M/s operations False positive rate: 2.62% 64-byte value Lookups - 5.6 M/s operations Updates - 4.8 M/s operations False positive rate: 2.7% 1 mil entries 8-byte value Lookups - 19.8 M/s operations Updates - 12.6 M/s operations False positive rate: 2.60% 64-byte value Lookups - 5.3 M/s operations Updates - 4.4 M/s operations False positive rate: 2.69% 2.5 mil entries 8-byte value Lookups - 16.2 M/s operations Updates - 10.7 M/s operations False positive rate: 4.49% 64-byte value Lookups - 4.9 M/s operations Updates - 4.1 M/s operations False positive rate: 4.41% 5 mil entries 8-byte value Lookups - 18.8 M/s operations Updates - 9.2 M/s operations False positive rate: 4.45% 64-byte value Lookups - 5.2 M/s operations Updates - 3.9 M/s operations False positive rate: 4.54% 4 hash functions: 50k entries 8-byte value Lookups - 19.7 M/s operations Updates - 11.1 M/s operations False positive rate: 1.01% 64-byte value Lookups - 4.4 M/s operations Updates - 4.0 M/s operations False positive rate: 1.00% 100k entries 8-byte value Lookups - 19.5 M/s operations Updates - 10.9 M/s operations False positive rate: 1.00% 64-byte value Lookups - 4.3 M/s operations Updates - 3.9 M/s operations False positive rate: 0.97% 500k entries 8-byte value Lookups - 18.2 M/s operations Updates - 10.6 M/s operations False positive rate: 2.05% 64-byte value Lookups - 4.3 M/s operations Updates - 3.7 M/s operations False positive rate: 2.05% 1 mil entries 8-byte value Lookups - 15.5 M/s operations Updates - 9.6 M/s operations False positive rate: 1.99% 64-byte value Lookups - 4.0 M/s operations Updates - 3.4 M/s operations False positive rate: 1.99% 2.5 mil entries 8-byte value Lookups - 13.8 M/s operations Updates - 7.7 M/s operations False positive rate: 3.91% 64-byte value Lookups - 3.7 M/s operations Updates - 3.6 M/s operations False positive rate: 3.78% 5 mil entries 8-byte value Lookups - 13.0 M/s operations Updates - 6.9 M/s operations False positive rate: 3.93% 64-byte value Lookups - 3.5 M/s operations Updates - 3.7 M/s operations False positive rate: 3.39% 5 hash functions: 50k entries 8-byte value Lookups - 16.4 M/s operations Updates - 9.1 M/s operations False positive rate: 0.78% 64-byte value Lookups - 3.5 M/s operations Updates - 3.2 M/s operations False positive rate: 0.77% 100k entries 8-byte value Lookups - 16.3 M/s operations Updates - 9.0 M/s operations False positive rate: 0.79% 64-byte value Lookups - 3.5 M/s operations Updates - 3.2 M/s operations False positive rate: 0.78% 500k entries 8-byte value Lookups - 15.1 M/s operations Updates - 8.8 M/s operations False positive rate: 1.82% 64-byte value Lookups - 3.4 M/s operations Updates - 3.0 M/s operations False positive rate: 1.78% 1 mil entries 8-byte value Lookups - 13.2 M/s operations Updates - 7.8 M/s operations False positive rate: 1.81% 64-byte value Lookups - 3.2 M/s operations Updates - 2.8 M/s operations False positive rate: 1.80% 2.5 mil entries 8-byte value Lookups - 10.5 M/s operations Updates - 5.9 M/s operations False positive rate: 0.29% 64-byte value Lookups - 3.2 M/s operations Updates - 2.4 M/s operations False positive rate: 0.28% 5 mil entries 8-byte value Lookups - 9.6 M/s operations Updates - 5.7 M/s operations False positive rate: 0.30% 64-byte value Lookups - 3.2 M/s operations Updates - 2.7 M/s operations False positive rate: 0.30% Signed-off-by: Joanne Koong <joannekoong@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20211027234504.30744-5-joannekoong@fb.com |
| H A D | run_bench_ringbufs.sh | diff 57fd1c63 Wed Oct 27 17:45:03 MDT 2021 Joanne Koong <joannekoong@fb.com> bpf/benchs: Add benchmark tests for bloom filter throughput + false positive This patch adds benchmark tests for the throughput (for lookups + updates) and the false positive rate of bloom filter lookups, as well as some minor refactoring of the bash script for running the benchmarks. These benchmarks show that as the number of hash functions increases, the throughput and the false positive rate of the bloom filter decreases. >From the benchmark data, the approximate average false-positive rates are roughly as follows: 1 hash function = ~30% 2 hash functions = ~15% 3 hash functions = ~5% 4 hash functions = ~2.5% 5 hash functions = ~1% 6 hash functions = ~0.5% 7 hash functions = ~0.35% 8 hash functions = ~0.15% 9 hash functions = ~0.1% 10 hash functions = ~0% For reference data, the benchmarks run on one thread on a machine with one numa node for 1 to 5 hash functions for 8-byte and 64-byte values are as follows: 1 hash function: 50k entries 8-byte value Lookups - 51.1 M/s operations Updates - 33.6 M/s operations False positive rate: 24.15% 64-byte value Lookups - 15.7 M/s operations Updates - 15.1 M/s operations False positive rate: 24.2% 100k entries 8-byte value Lookups - 51.0 M/s operations Updates - 33.4 M/s operations False positive rate: 24.04% 64-byte value Lookups - 15.6 M/s operations Updates - 14.6 M/s operations False positive rate: 24.06% 500k entries 8-byte value Lookups - 50.5 M/s operations Updates - 33.1 M/s operations False positive rate: 27.45% 64-byte value Lookups - 15.6 M/s operations Updates - 14.2 M/s operations False positive rate: 27.42% 1 mil entries 8-byte value Lookups - 49.7 M/s operations Updates - 32.9 M/s operations False positive rate: 27.45% 64-byte value Lookups - 15.4 M/s operations Updates - 13.7 M/s operations False positive rate: 27.58% 2.5 mil entries 8-byte value Lookups - 47.2 M/s operations Updates - 31.8 M/s operations False positive rate: 30.94% 64-byte value Lookups - 15.3 M/s operations Updates - 13.2 M/s operations False positive rate: 30.95% 5 mil entries 8-byte value Lookups - 41.1 M/s operations Updates - 28.1 M/s operations False positive rate: 31.01% 64-byte value Lookups - 13.3 M/s operations Updates - 11.4 M/s operations False positive rate: 30.98% 2 hash functions: 50k entries 8-byte value Lookups - 34.1 M/s operations Updates - 20.1 M/s operations False positive rate: 9.13% 64-byte value Lookups - 8.4 M/s operations Updates - 7.9 M/s operations False positive rate: 9.21% 100k entries 8-byte value Lookups - 33.7 M/s operations Updates - 18.9 M/s operations False positive rate: 9.13% 64-byte value Lookups - 8.4 M/s operations Updates - 7.7 M/s operations False positive rate: 9.19% 500k entries 8-byte value Lookups - 32.7 M/s operations Updates - 18.1 M/s operations False positive rate: 12.61% 64-byte value Lookups - 8.4 M/s operations Updates - 7.5 M/s operations False positive rate: 12.61% 1 mil entries 8-byte value Lookups - 30.6 M/s operations Updates - 18.9 M/s operations False positive rate: 12.54% 64-byte value Lookups - 8.0 M/s operations Updates - 7.0 M/s operations False positive rate: 12.52% 2.5 mil entries 8-byte value Lookups - 25.3 M/s operations Updates - 16.7 M/s operations False positive rate: 16.77% 64-byte value Lookups - 7.9 M/s operations Updates - 6.5 M/s operations False positive rate: 16.88% 5 mil entries 8-byte value Lookups - 20.8 M/s operations Updates - 14.7 M/s operations False positive rate: 16.78% 64-byte value Lookups - 7.0 M/s operations Updates - 6.0 M/s operations False positive rate: 16.78% 3 hash functions: 50k entries 8-byte value Lookups - 25.1 M/s operations Updates - 14.6 M/s operations False positive rate: 7.65% 64-byte value Lookups - 5.8 M/s operations Updates - 5.5 M/s operations False positive rate: 7.58% 100k entries 8-byte value Lookups - 24.7 M/s operations Updates - 14.1 M/s operations False positive rate: 7.71% 64-byte value Lookups - 5.8 M/s operations Updates - 5.3 M/s operations False positive rate: 7.62% 500k entries 8-byte value Lookups - 22.9 M/s operations Updates - 13.9 M/s operations False positive rate: 2.62% 64-byte value Lookups - 5.6 M/s operations Updates - 4.8 M/s operations False positive rate: 2.7% 1 mil entries 8-byte value Lookups - 19.8 M/s operations Updates - 12.6 M/s operations False positive rate: 2.60% 64-byte value Lookups - 5.3 M/s operations Updates - 4.4 M/s operations False positive rate: 2.69% 2.5 mil entries 8-byte value Lookups - 16.2 M/s operations Updates - 10.7 M/s operations False positive rate: 4.49% 64-byte value Lookups - 4.9 M/s operations Updates - 4.1 M/s operations False positive rate: 4.41% 5 mil entries 8-byte value Lookups - 18.8 M/s operations Updates - 9.2 M/s operations False positive rate: 4.45% 64-byte value Lookups - 5.2 M/s operations Updates - 3.9 M/s operations False positive rate: 4.54% 4 hash functions: 50k entries 8-byte value Lookups - 19.7 M/s operations Updates - 11.1 M/s operations False positive rate: 1.01% 64-byte value Lookups - 4.4 M/s operations Updates - 4.0 M/s operations False positive rate: 1.00% 100k entries 8-byte value Lookups - 19.5 M/s operations Updates - 10.9 M/s operations False positive rate: 1.00% 64-byte value Lookups - 4.3 M/s operations Updates - 3.9 M/s operations False positive rate: 0.97% 500k entries 8-byte value Lookups - 18.2 M/s operations Updates - 10.6 M/s operations False positive rate: 2.05% 64-byte value Lookups - 4.3 M/s operations Updates - 3.7 M/s operations False positive rate: 2.05% 1 mil entries 8-byte value Lookups - 15.5 M/s operations Updates - 9.6 M/s operations False positive rate: 1.99% 64-byte value Lookups - 4.0 M/s operations Updates - 3.4 M/s operations False positive rate: 1.99% 2.5 mil entries 8-byte value Lookups - 13.8 M/s operations Updates - 7.7 M/s operations False positive rate: 3.91% 64-byte value Lookups - 3.7 M/s operations Updates - 3.6 M/s operations False positive rate: 3.78% 5 mil entries 8-byte value Lookups - 13.0 M/s operations Updates - 6.9 M/s operations False positive rate: 3.93% 64-byte value Lookups - 3.5 M/s operations Updates - 3.7 M/s operations False positive rate: 3.39% 5 hash functions: 50k entries 8-byte value Lookups - 16.4 M/s operations Updates - 9.1 M/s operations False positive rate: 0.78% 64-byte value Lookups - 3.5 M/s operations Updates - 3.2 M/s operations False positive rate: 0.77% 100k entries 8-byte value Lookups - 16.3 M/s operations Updates - 9.0 M/s operations False positive rate: 0.79% 64-byte value Lookups - 3.5 M/s operations Updates - 3.2 M/s operations False positive rate: 0.78% 500k entries 8-byte value Lookups - 15.1 M/s operations Updates - 8.8 M/s operations False positive rate: 1.82% 64-byte value Lookups - 3.4 M/s operations Updates - 3.0 M/s operations False positive rate: 1.78% 1 mil entries 8-byte value Lookups - 13.2 M/s operations Updates - 7.8 M/s operations False positive rate: 1.81% 64-byte value Lookups - 3.2 M/s operations Updates - 2.8 M/s operations False positive rate: 1.80% 2.5 mil entries 8-byte value Lookups - 10.5 M/s operations Updates - 5.9 M/s operations False positive rate: 0.29% 64-byte value Lookups - 3.2 M/s operations Updates - 2.4 M/s operations False positive rate: 0.28% 5 mil entries 8-byte value Lookups - 9.6 M/s operations Updates - 5.7 M/s operations False positive rate: 0.30% 64-byte value Lookups - 3.2 M/s operations Updates - 2.7 M/s operations False positive rate: 0.30% Signed-off-by: Joanne Koong <joannekoong@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20211027234504.30744-5-joannekoong@fb.com diff 57fd1c63 Wed Oct 27 17:45:03 MDT 2021 Joanne Koong <joannekoong@fb.com> bpf/benchs: Add benchmark tests for bloom filter throughput + false positive This patch adds benchmark tests for the throughput (for lookups + updates) and the false positive rate of bloom filter lookups, as well as some minor refactoring of the bash script for running the benchmarks. These benchmarks show that as the number of hash functions increases, the throughput and the false positive rate of the bloom filter decreases. >From the benchmark data, the approximate average false-positive rates are roughly as follows: 1 hash function = ~30% 2 hash functions = ~15% 3 hash functions = ~5% 4 hash functions = ~2.5% 5 hash functions = ~1% 6 hash functions = ~0.5% 7 hash functions = ~0.35% 8 hash functions = ~0.15% 9 hash functions = ~0.1% 10 hash functions = ~0% For reference data, the benchmarks run on one thread on a machine with one numa node for 1 to 5 hash functions for 8-byte and 64-byte values are as follows: 1 hash function: 50k entries 8-byte value Lookups - 51.1 M/s operations Updates - 33.6 M/s operations False positive rate: 24.15% 64-byte value Lookups - 15.7 M/s operations Updates - 15.1 M/s operations False positive rate: 24.2% 100k entries 8-byte value Lookups - 51.0 M/s operations Updates - 33.4 M/s operations False positive rate: 24.04% 64-byte value Lookups - 15.6 M/s operations Updates - 14.6 M/s operations False positive rate: 24.06% 500k entries 8-byte value Lookups - 50.5 M/s operations Updates - 33.1 M/s operations False positive rate: 27.45% 64-byte value Lookups - 15.6 M/s operations Updates - 14.2 M/s operations False positive rate: 27.42% 1 mil entries 8-byte value Lookups - 49.7 M/s operations Updates - 32.9 M/s operations False positive rate: 27.45% 64-byte value Lookups - 15.4 M/s operations Updates - 13.7 M/s operations False positive rate: 27.58% 2.5 mil entries 8-byte value Lookups - 47.2 M/s operations Updates - 31.8 M/s operations False positive rate: 30.94% 64-byte value Lookups - 15.3 M/s operations Updates - 13.2 M/s operations False positive rate: 30.95% 5 mil entries 8-byte value Lookups - 41.1 M/s operations Updates - 28.1 M/s operations False positive rate: 31.01% 64-byte value Lookups - 13.3 M/s operations Updates - 11.4 M/s operations False positive rate: 30.98% 2 hash functions: 50k entries 8-byte value Lookups - 34.1 M/s operations Updates - 20.1 M/s operations False positive rate: 9.13% 64-byte value Lookups - 8.4 M/s operations Updates - 7.9 M/s operations False positive rate: 9.21% 100k entries 8-byte value Lookups - 33.7 M/s operations Updates - 18.9 M/s operations False positive rate: 9.13% 64-byte value Lookups - 8.4 M/s operations Updates - 7.7 M/s operations False positive rate: 9.19% 500k entries 8-byte value Lookups - 32.7 M/s operations Updates - 18.1 M/s operations False positive rate: 12.61% 64-byte value Lookups - 8.4 M/s operations Updates - 7.5 M/s operations False positive rate: 12.61% 1 mil entries 8-byte value Lookups - 30.6 M/s operations Updates - 18.9 M/s operations False positive rate: 12.54% 64-byte value Lookups - 8.0 M/s operations Updates - 7.0 M/s operations False positive rate: 12.52% 2.5 mil entries 8-byte value Lookups - 25.3 M/s operations Updates - 16.7 M/s operations False positive rate: 16.77% 64-byte value Lookups - 7.9 M/s operations Updates - 6.5 M/s operations False positive rate: 16.88% 5 mil entries 8-byte value Lookups - 20.8 M/s operations Updates - 14.7 M/s operations False positive rate: 16.78% 64-byte value Lookups - 7.0 M/s operations Updates - 6.0 M/s operations False positive rate: 16.78% 3 hash functions: 50k entries 8-byte value Lookups - 25.1 M/s operations Updates - 14.6 M/s operations False positive rate: 7.65% 64-byte value Lookups - 5.8 M/s operations Updates - 5.5 M/s operations False positive rate: 7.58% 100k entries 8-byte value Lookups - 24.7 M/s operations Updates - 14.1 M/s operations False positive rate: 7.71% 64-byte value Lookups - 5.8 M/s operations Updates - 5.3 M/s operations False positive rate: 7.62% 500k entries 8-byte value Lookups - 22.9 M/s operations Updates - 13.9 M/s operations False positive rate: 2.62% 64-byte value Lookups - 5.6 M/s operations Updates - 4.8 M/s operations False positive rate: 2.7% 1 mil entries 8-byte value Lookups - 19.8 M/s operations Updates - 12.6 M/s operations False positive rate: 2.60% 64-byte value Lookups - 5.3 M/s operations Updates - 4.4 M/s operations False positive rate: 2.69% 2.5 mil entries 8-byte value Lookups - 16.2 M/s operations Updates - 10.7 M/s operations False positive rate: 4.49% 64-byte value Lookups - 4.9 M/s operations Updates - 4.1 M/s operations False positive rate: 4.41% 5 mil entries 8-byte value Lookups - 18.8 M/s operations Updates - 9.2 M/s operations False positive rate: 4.45% 64-byte value Lookups - 5.2 M/s operations Updates - 3.9 M/s operations False positive rate: 4.54% 4 hash functions: 50k entries 8-byte value Lookups - 19.7 M/s operations Updates - 11.1 M/s operations False positive rate: 1.01% 64-byte value Lookups - 4.4 M/s operations Updates - 4.0 M/s operations False positive rate: 1.00% 100k entries 8-byte value Lookups - 19.5 M/s operations Updates - 10.9 M/s operations False positive rate: 1.00% 64-byte value Lookups - 4.3 M/s operations Updates - 3.9 M/s operations False positive rate: 0.97% 500k entries 8-byte value Lookups - 18.2 M/s operations Updates - 10.6 M/s operations False positive rate: 2.05% 64-byte value Lookups - 4.3 M/s operations Updates - 3.7 M/s operations False positive rate: 2.05% 1 mil entries 8-byte value Lookups - 15.5 M/s operations Updates - 9.6 M/s operations False positive rate: 1.99% 64-byte value Lookups - 4.0 M/s operations Updates - 3.4 M/s operations False positive rate: 1.99% 2.5 mil entries 8-byte value Lookups - 13.8 M/s operations Updates - 7.7 M/s operations False positive rate: 3.91% 64-byte value Lookups - 3.7 M/s operations Updates - 3.6 M/s operations False positive rate: 3.78% 5 mil entries 8-byte value Lookups - 13.0 M/s operations Updates - 6.9 M/s operations False positive rate: 3.93% 64-byte value Lookups - 3.5 M/s operations Updates - 3.7 M/s operations False positive rate: 3.39% 5 hash functions: 50k entries 8-byte value Lookups - 16.4 M/s operations Updates - 9.1 M/s operations False positive rate: 0.78% 64-byte value Lookups - 3.5 M/s operations Updates - 3.2 M/s operations False positive rate: 0.77% 100k entries 8-byte value Lookups - 16.3 M/s operations Updates - 9.0 M/s operations False positive rate: 0.79% 64-byte value Lookups - 3.5 M/s operations Updates - 3.2 M/s operations False positive rate: 0.78% 500k entries 8-byte value Lookups - 15.1 M/s operations Updates - 8.8 M/s operations False positive rate: 1.82% 64-byte value Lookups - 3.4 M/s operations Updates - 3.0 M/s operations False positive rate: 1.78% 1 mil entries 8-byte value Lookups - 13.2 M/s operations Updates - 7.8 M/s operations False positive rate: 1.81% 64-byte value Lookups - 3.2 M/s operations Updates - 2.8 M/s operations False positive rate: 1.80% 2.5 mil entries 8-byte value Lookups - 10.5 M/s operations Updates - 5.9 M/s operations False positive rate: 0.29% 64-byte value Lookups - 3.2 M/s operations Updates - 2.4 M/s operations False positive rate: 0.28% 5 mil entries 8-byte value Lookups - 9.6 M/s operations Updates - 5.7 M/s operations False positive rate: 0.30% 64-byte value Lookups - 3.2 M/s operations Updates - 2.7 M/s operations False positive rate: 0.30% Signed-off-by: Joanne Koong <joannekoong@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20211027234504.30744-5-joannekoong@fb.com |
| /linux-master/tools/testing/selftests/bpf/progs/ | ||
| H A D | bloom_filter_bench.c | 57fd1c63 Wed Oct 27 17:45:03 MDT 2021 Joanne Koong <joannekoong@fb.com> bpf/benchs: Add benchmark tests for bloom filter throughput + false positive This patch adds benchmark tests for the throughput (for lookups + updates) and the false positive rate of bloom filter lookups, as well as some minor refactoring of the bash script for running the benchmarks. These benchmarks show that as the number of hash functions increases, the throughput and the false positive rate of the bloom filter decreases. >From the benchmark data, the approximate average false-positive rates are roughly as follows: 1 hash function = ~30% 2 hash functions = ~15% 3 hash functions = ~5% 4 hash functions = ~2.5% 5 hash functions = ~1% 6 hash functions = ~0.5% 7 hash functions = ~0.35% 8 hash functions = ~0.15% 9 hash functions = ~0.1% 10 hash functions = ~0% For reference data, the benchmarks run on one thread on a machine with one numa node for 1 to 5 hash functions for 8-byte and 64-byte values are as follows: 1 hash function: 50k entries 8-byte value Lookups - 51.1 M/s operations Updates - 33.6 M/s operations False positive rate: 24.15% 64-byte value Lookups - 15.7 M/s operations Updates - 15.1 M/s operations False positive rate: 24.2% 100k entries 8-byte value Lookups - 51.0 M/s operations Updates - 33.4 M/s operations False positive rate: 24.04% 64-byte value Lookups - 15.6 M/s operations Updates - 14.6 M/s operations False positive rate: 24.06% 500k entries 8-byte value Lookups - 50.5 M/s operations Updates - 33.1 M/s operations False positive rate: 27.45% 64-byte value Lookups - 15.6 M/s operations Updates - 14.2 M/s operations False positive rate: 27.42% 1 mil entries 8-byte value Lookups - 49.7 M/s operations Updates - 32.9 M/s operations False positive rate: 27.45% 64-byte value Lookups - 15.4 M/s operations Updates - 13.7 M/s operations False positive rate: 27.58% 2.5 mil entries 8-byte value Lookups - 47.2 M/s operations Updates - 31.8 M/s operations False positive rate: 30.94% 64-byte value Lookups - 15.3 M/s operations Updates - 13.2 M/s operations False positive rate: 30.95% 5 mil entries 8-byte value Lookups - 41.1 M/s operations Updates - 28.1 M/s operations False positive rate: 31.01% 64-byte value Lookups - 13.3 M/s operations Updates - 11.4 M/s operations False positive rate: 30.98% 2 hash functions: 50k entries 8-byte value Lookups - 34.1 M/s operations Updates - 20.1 M/s operations False positive rate: 9.13% 64-byte value Lookups - 8.4 M/s operations Updates - 7.9 M/s operations False positive rate: 9.21% 100k entries 8-byte value Lookups - 33.7 M/s operations Updates - 18.9 M/s operations False positive rate: 9.13% 64-byte value Lookups - 8.4 M/s operations Updates - 7.7 M/s operations False positive rate: 9.19% 500k entries 8-byte value Lookups - 32.7 M/s operations Updates - 18.1 M/s operations False positive rate: 12.61% 64-byte value Lookups - 8.4 M/s operations Updates - 7.5 M/s operations False positive rate: 12.61% 1 mil entries 8-byte value Lookups - 30.6 M/s operations Updates - 18.9 M/s operations False positive rate: 12.54% 64-byte value Lookups - 8.0 M/s operations Updates - 7.0 M/s operations False positive rate: 12.52% 2.5 mil entries 8-byte value Lookups - 25.3 M/s operations Updates - 16.7 M/s operations False positive rate: 16.77% 64-byte value Lookups - 7.9 M/s operations Updates - 6.5 M/s operations False positive rate: 16.88% 5 mil entries 8-byte value Lookups - 20.8 M/s operations Updates - 14.7 M/s operations False positive rate: 16.78% 64-byte value Lookups - 7.0 M/s operations Updates - 6.0 M/s operations False positive rate: 16.78% 3 hash functions: 50k entries 8-byte value Lookups - 25.1 M/s operations Updates - 14.6 M/s operations False positive rate: 7.65% 64-byte value Lookups - 5.8 M/s operations Updates - 5.5 M/s operations False positive rate: 7.58% 100k entries 8-byte value Lookups - 24.7 M/s operations Updates - 14.1 M/s operations False positive rate: 7.71% 64-byte value Lookups - 5.8 M/s operations Updates - 5.3 M/s operations False positive rate: 7.62% 500k entries 8-byte value Lookups - 22.9 M/s operations Updates - 13.9 M/s operations False positive rate: 2.62% 64-byte value Lookups - 5.6 M/s operations Updates - 4.8 M/s operations False positive rate: 2.7% 1 mil entries 8-byte value Lookups - 19.8 M/s operations Updates - 12.6 M/s operations False positive rate: 2.60% 64-byte value Lookups - 5.3 M/s operations Updates - 4.4 M/s operations False positive rate: 2.69% 2.5 mil entries 8-byte value Lookups - 16.2 M/s operations Updates - 10.7 M/s operations False positive rate: 4.49% 64-byte value Lookups - 4.9 M/s operations Updates - 4.1 M/s operations False positive rate: 4.41% 5 mil entries 8-byte value Lookups - 18.8 M/s operations Updates - 9.2 M/s operations False positive rate: 4.45% 64-byte value Lookups - 5.2 M/s operations Updates - 3.9 M/s operations False positive rate: 4.54% 4 hash functions: 50k entries 8-byte value Lookups - 19.7 M/s operations Updates - 11.1 M/s operations False positive rate: 1.01% 64-byte value Lookups - 4.4 M/s operations Updates - 4.0 M/s operations False positive rate: 1.00% 100k entries 8-byte value Lookups - 19.5 M/s operations Updates - 10.9 M/s operations False positive rate: 1.00% 64-byte value Lookups - 4.3 M/s operations Updates - 3.9 M/s operations False positive rate: 0.97% 500k entries 8-byte value Lookups - 18.2 M/s operations Updates - 10.6 M/s operations False positive rate: 2.05% 64-byte value Lookups - 4.3 M/s operations Updates - 3.7 M/s operations False positive rate: 2.05% 1 mil entries 8-byte value Lookups - 15.5 M/s operations Updates - 9.6 M/s operations False positive rate: 1.99% 64-byte value Lookups - 4.0 M/s operations Updates - 3.4 M/s operations False positive rate: 1.99% 2.5 mil entries 8-byte value Lookups - 13.8 M/s operations Updates - 7.7 M/s operations False positive rate: 3.91% 64-byte value Lookups - 3.7 M/s operations Updates - 3.6 M/s operations False positive rate: 3.78% 5 mil entries 8-byte value Lookups - 13.0 M/s operations Updates - 6.9 M/s operations False positive rate: 3.93% 64-byte value Lookups - 3.5 M/s operations Updates - 3.7 M/s operations False positive rate: 3.39% 5 hash functions: 50k entries 8-byte value Lookups - 16.4 M/s operations Updates - 9.1 M/s operations False positive rate: 0.78% 64-byte value Lookups - 3.5 M/s operations Updates - 3.2 M/s operations False positive rate: 0.77% 100k entries 8-byte value Lookups - 16.3 M/s operations Updates - 9.0 M/s operations False positive rate: 0.79% 64-byte value Lookups - 3.5 M/s operations Updates - 3.2 M/s operations False positive rate: 0.78% 500k entries 8-byte value Lookups - 15.1 M/s operations Updates - 8.8 M/s operations False positive rate: 1.82% 64-byte value Lookups - 3.4 M/s operations Updates - 3.0 M/s operations False positive rate: 1.78% 1 mil entries 8-byte value Lookups - 13.2 M/s operations Updates - 7.8 M/s operations False positive rate: 1.81% 64-byte value Lookups - 3.2 M/s operations Updates - 2.8 M/s operations False positive rate: 1.80% 2.5 mil entries 8-byte value Lookups - 10.5 M/s operations Updates - 5.9 M/s operations False positive rate: 0.29% 64-byte value Lookups - 3.2 M/s operations Updates - 2.4 M/s operations False positive rate: 0.28% 5 mil entries 8-byte value Lookups - 9.6 M/s operations Updates - 5.7 M/s operations False positive rate: 0.30% 64-byte value Lookups - 3.2 M/s operations Updates - 2.7 M/s operations False positive rate: 0.30% Signed-off-by: Joanne Koong <joannekoong@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20211027234504.30744-5-joannekoong@fb.com 57fd1c63 Wed Oct 27 17:45:03 MDT 2021 Joanne Koong <joannekoong@fb.com> bpf/benchs: Add benchmark tests for bloom filter throughput + false positive This patch adds benchmark tests for the throughput (for lookups + updates) and the false positive rate of bloom filter lookups, as well as some minor refactoring of the bash script for running the benchmarks. These benchmarks show that as the number of hash functions increases, the throughput and the false positive rate of the bloom filter decreases. >From the benchmark data, the approximate average false-positive rates are roughly as follows: 1 hash function = ~30% 2 hash functions = ~15% 3 hash functions = ~5% 4 hash functions = ~2.5% 5 hash functions = ~1% 6 hash functions = ~0.5% 7 hash functions = ~0.35% 8 hash functions = ~0.15% 9 hash functions = ~0.1% 10 hash functions = ~0% For reference data, the benchmarks run on one thread on a machine with one numa node for 1 to 5 hash functions for 8-byte and 64-byte values are as follows: 1 hash function: 50k entries 8-byte value Lookups - 51.1 M/s operations Updates - 33.6 M/s operations False positive rate: 24.15% 64-byte value Lookups - 15.7 M/s operations Updates - 15.1 M/s operations False positive rate: 24.2% 100k entries 8-byte value Lookups - 51.0 M/s operations Updates - 33.4 M/s operations False positive rate: 24.04% 64-byte value Lookups - 15.6 M/s operations Updates - 14.6 M/s operations False positive rate: 24.06% 500k entries 8-byte value Lookups - 50.5 M/s operations Updates - 33.1 M/s operations False positive rate: 27.45% 64-byte value Lookups - 15.6 M/s operations Updates - 14.2 M/s operations False positive rate: 27.42% 1 mil entries 8-byte value Lookups - 49.7 M/s operations Updates - 32.9 M/s operations False positive rate: 27.45% 64-byte value Lookups - 15.4 M/s operations Updates - 13.7 M/s operations False positive rate: 27.58% 2.5 mil entries 8-byte value Lookups - 47.2 M/s operations Updates - 31.8 M/s operations False positive rate: 30.94% 64-byte value Lookups - 15.3 M/s operations Updates - 13.2 M/s operations False positive rate: 30.95% 5 mil entries 8-byte value Lookups - 41.1 M/s operations Updates - 28.1 M/s operations False positive rate: 31.01% 64-byte value Lookups - 13.3 M/s operations Updates - 11.4 M/s operations False positive rate: 30.98% 2 hash functions: 50k entries 8-byte value Lookups - 34.1 M/s operations Updates - 20.1 M/s operations False positive rate: 9.13% 64-byte value Lookups - 8.4 M/s operations Updates - 7.9 M/s operations False positive rate: 9.21% 100k entries 8-byte value Lookups - 33.7 M/s operations Updates - 18.9 M/s operations False positive rate: 9.13% 64-byte value Lookups - 8.4 M/s operations Updates - 7.7 M/s operations False positive rate: 9.19% 500k entries 8-byte value Lookups - 32.7 M/s operations Updates - 18.1 M/s operations False positive rate: 12.61% 64-byte value Lookups - 8.4 M/s operations Updates - 7.5 M/s operations False positive rate: 12.61% 1 mil entries 8-byte value Lookups - 30.6 M/s operations Updates - 18.9 M/s operations False positive rate: 12.54% 64-byte value Lookups - 8.0 M/s operations Updates - 7.0 M/s operations False positive rate: 12.52% 2.5 mil entries 8-byte value Lookups - 25.3 M/s operations Updates - 16.7 M/s operations False positive rate: 16.77% 64-byte value Lookups - 7.9 M/s operations Updates - 6.5 M/s operations False positive rate: 16.88% 5 mil entries 8-byte value Lookups - 20.8 M/s operations Updates - 14.7 M/s operations False positive rate: 16.78% 64-byte value Lookups - 7.0 M/s operations Updates - 6.0 M/s operations False positive rate: 16.78% 3 hash functions: 50k entries 8-byte value Lookups - 25.1 M/s operations Updates - 14.6 M/s operations False positive rate: 7.65% 64-byte value Lookups - 5.8 M/s operations Updates - 5.5 M/s operations False positive rate: 7.58% 100k entries 8-byte value Lookups - 24.7 M/s operations Updates - 14.1 M/s operations False positive rate: 7.71% 64-byte value Lookups - 5.8 M/s operations Updates - 5.3 M/s operations False positive rate: 7.62% 500k entries 8-byte value Lookups - 22.9 M/s operations Updates - 13.9 M/s operations False positive rate: 2.62% 64-byte value Lookups - 5.6 M/s operations Updates - 4.8 M/s operations False positive rate: 2.7% 1 mil entries 8-byte value Lookups - 19.8 M/s operations Updates - 12.6 M/s operations False positive rate: 2.60% 64-byte value Lookups - 5.3 M/s operations Updates - 4.4 M/s operations False positive rate: 2.69% 2.5 mil entries 8-byte value Lookups - 16.2 M/s operations Updates - 10.7 M/s operations False positive rate: 4.49% 64-byte value Lookups - 4.9 M/s operations Updates - 4.1 M/s operations False positive rate: 4.41% 5 mil entries 8-byte value Lookups - 18.8 M/s operations Updates - 9.2 M/s operations False positive rate: 4.45% 64-byte value Lookups - 5.2 M/s operations Updates - 3.9 M/s operations False positive rate: 4.54% 4 hash functions: 50k entries 8-byte value Lookups - 19.7 M/s operations Updates - 11.1 M/s operations False positive rate: 1.01% 64-byte value Lookups - 4.4 M/s operations Updates - 4.0 M/s operations False positive rate: 1.00% 100k entries 8-byte value Lookups - 19.5 M/s operations Updates - 10.9 M/s operations False positive rate: 1.00% 64-byte value Lookups - 4.3 M/s operations Updates - 3.9 M/s operations False positive rate: 0.97% 500k entries 8-byte value Lookups - 18.2 M/s operations Updates - 10.6 M/s operations False positive rate: 2.05% 64-byte value Lookups - 4.3 M/s operations Updates - 3.7 M/s operations False positive rate: 2.05% 1 mil entries 8-byte value Lookups - 15.5 M/s operations Updates - 9.6 M/s operations False positive rate: 1.99% 64-byte value Lookups - 4.0 M/s operations Updates - 3.4 M/s operations False positive rate: 1.99% 2.5 mil entries 8-byte value Lookups - 13.8 M/s operations Updates - 7.7 M/s operations False positive rate: 3.91% 64-byte value Lookups - 3.7 M/s operations Updates - 3.6 M/s operations False positive rate: 3.78% 5 mil entries 8-byte value Lookups - 13.0 M/s operations Updates - 6.9 M/s operations False positive rate: 3.93% 64-byte value Lookups - 3.5 M/s operations Updates - 3.7 M/s operations False positive rate: 3.39% 5 hash functions: 50k entries 8-byte value Lookups - 16.4 M/s operations Updates - 9.1 M/s operations False positive rate: 0.78% 64-byte value Lookups - 3.5 M/s operations Updates - 3.2 M/s operations False positive rate: 0.77% 100k entries 8-byte value Lookups - 16.3 M/s operations Updates - 9.0 M/s operations False positive rate: 0.79% 64-byte value Lookups - 3.5 M/s operations Updates - 3.2 M/s operations False positive rate: 0.78% 500k entries 8-byte value Lookups - 15.1 M/s operations Updates - 8.8 M/s operations False positive rate: 1.82% 64-byte value Lookups - 3.4 M/s operations Updates - 3.0 M/s operations False positive rate: 1.78% 1 mil entries 8-byte value Lookups - 13.2 M/s operations Updates - 7.8 M/s operations False positive rate: 1.81% 64-byte value Lookups - 3.2 M/s operations Updates - 2.8 M/s operations False positive rate: 1.80% 2.5 mil entries 8-byte value Lookups - 10.5 M/s operations Updates - 5.9 M/s operations False positive rate: 0.29% 64-byte value Lookups - 3.2 M/s operations Updates - 2.4 M/s operations False positive rate: 0.28% 5 mil entries 8-byte value Lookups - 9.6 M/s operations Updates - 5.7 M/s operations False positive rate: 0.30% 64-byte value Lookups - 3.2 M/s operations Updates - 2.7 M/s operations False positive rate: 0.30% Signed-off-by: Joanne Koong <joannekoong@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20211027234504.30744-5-joannekoong@fb.com |
| /linux-master/tools/testing/selftests/bpf/ | ||
| H A D | bench.h | diff 57fd1c63 Wed Oct 27 17:45:03 MDT 2021 Joanne Koong <joannekoong@fb.com> bpf/benchs: Add benchmark tests for bloom filter throughput + false positive This patch adds benchmark tests for the throughput (for lookups + updates) and the false positive rate of bloom filter lookups, as well as some minor refactoring of the bash script for running the benchmarks. These benchmarks show that as the number of hash functions increases, the throughput and the false positive rate of the bloom filter decreases. >From the benchmark data, the approximate average false-positive rates are roughly as follows: 1 hash function = ~30% 2 hash functions = ~15% 3 hash functions = ~5% 4 hash functions = ~2.5% 5 hash functions = ~1% 6 hash functions = ~0.5% 7 hash functions = ~0.35% 8 hash functions = ~0.15% 9 hash functions = ~0.1% 10 hash functions = ~0% For reference data, the benchmarks run on one thread on a machine with one numa node for 1 to 5 hash functions for 8-byte and 64-byte values are as follows: 1 hash function: 50k entries 8-byte value Lookups - 51.1 M/s operations Updates - 33.6 M/s operations False positive rate: 24.15% 64-byte value Lookups - 15.7 M/s operations Updates - 15.1 M/s operations False positive rate: 24.2% 100k entries 8-byte value Lookups - 51.0 M/s operations Updates - 33.4 M/s operations False positive rate: 24.04% 64-byte value Lookups - 15.6 M/s operations Updates - 14.6 M/s operations False positive rate: 24.06% 500k entries 8-byte value Lookups - 50.5 M/s operations Updates - 33.1 M/s operations False positive rate: 27.45% 64-byte value Lookups - 15.6 M/s operations Updates - 14.2 M/s operations False positive rate: 27.42% 1 mil entries 8-byte value Lookups - 49.7 M/s operations Updates - 32.9 M/s operations False positive rate: 27.45% 64-byte value Lookups - 15.4 M/s operations Updates - 13.7 M/s operations False positive rate: 27.58% 2.5 mil entries 8-byte value Lookups - 47.2 M/s operations Updates - 31.8 M/s operations False positive rate: 30.94% 64-byte value Lookups - 15.3 M/s operations Updates - 13.2 M/s operations False positive rate: 30.95% 5 mil entries 8-byte value Lookups - 41.1 M/s operations Updates - 28.1 M/s operations False positive rate: 31.01% 64-byte value Lookups - 13.3 M/s operations Updates - 11.4 M/s operations False positive rate: 30.98% 2 hash functions: 50k entries 8-byte value Lookups - 34.1 M/s operations Updates - 20.1 M/s operations False positive rate: 9.13% 64-byte value Lookups - 8.4 M/s operations Updates - 7.9 M/s operations False positive rate: 9.21% 100k entries 8-byte value Lookups - 33.7 M/s operations Updates - 18.9 M/s operations False positive rate: 9.13% 64-byte value Lookups - 8.4 M/s operations Updates - 7.7 M/s operations False positive rate: 9.19% 500k entries 8-byte value Lookups - 32.7 M/s operations Updates - 18.1 M/s operations False positive rate: 12.61% 64-byte value Lookups - 8.4 M/s operations Updates - 7.5 M/s operations False positive rate: 12.61% 1 mil entries 8-byte value Lookups - 30.6 M/s operations Updates - 18.9 M/s operations False positive rate: 12.54% 64-byte value Lookups - 8.0 M/s operations Updates - 7.0 M/s operations False positive rate: 12.52% 2.5 mil entries 8-byte value Lookups - 25.3 M/s operations Updates - 16.7 M/s operations False positive rate: 16.77% 64-byte value Lookups - 7.9 M/s operations Updates - 6.5 M/s operations False positive rate: 16.88% 5 mil entries 8-byte value Lookups - 20.8 M/s operations Updates - 14.7 M/s operations False positive rate: 16.78% 64-byte value Lookups - 7.0 M/s operations Updates - 6.0 M/s operations False positive rate: 16.78% 3 hash functions: 50k entries 8-byte value Lookups - 25.1 M/s operations Updates - 14.6 M/s operations False positive rate: 7.65% 64-byte value Lookups - 5.8 M/s operations Updates - 5.5 M/s operations False positive rate: 7.58% 100k entries 8-byte value Lookups - 24.7 M/s operations Updates - 14.1 M/s operations False positive rate: 7.71% 64-byte value Lookups - 5.8 M/s operations Updates - 5.3 M/s operations False positive rate: 7.62% 500k entries 8-byte value Lookups - 22.9 M/s operations Updates - 13.9 M/s operations False positive rate: 2.62% 64-byte value Lookups - 5.6 M/s operations Updates - 4.8 M/s operations False positive rate: 2.7% 1 mil entries 8-byte value Lookups - 19.8 M/s operations Updates - 12.6 M/s operations False positive rate: 2.60% 64-byte value Lookups - 5.3 M/s operations Updates - 4.4 M/s operations False positive rate: 2.69% 2.5 mil entries 8-byte value Lookups - 16.2 M/s operations Updates - 10.7 M/s operations False positive rate: 4.49% 64-byte value Lookups - 4.9 M/s operations Updates - 4.1 M/s operations False positive rate: 4.41% 5 mil entries 8-byte value Lookups - 18.8 M/s operations Updates - 9.2 M/s operations False positive rate: 4.45% 64-byte value Lookups - 5.2 M/s operations Updates - 3.9 M/s operations False positive rate: 4.54% 4 hash functions: 50k entries 8-byte value Lookups - 19.7 M/s operations Updates - 11.1 M/s operations False positive rate: 1.01% 64-byte value Lookups - 4.4 M/s operations Updates - 4.0 M/s operations False positive rate: 1.00% 100k entries 8-byte value Lookups - 19.5 M/s operations Updates - 10.9 M/s operations False positive rate: 1.00% 64-byte value Lookups - 4.3 M/s operations Updates - 3.9 M/s operations False positive rate: 0.97% 500k entries 8-byte value Lookups - 18.2 M/s operations Updates - 10.6 M/s operations False positive rate: 2.05% 64-byte value Lookups - 4.3 M/s operations Updates - 3.7 M/s operations False positive rate: 2.05% 1 mil entries 8-byte value Lookups - 15.5 M/s operations Updates - 9.6 M/s operations False positive rate: 1.99% 64-byte value Lookups - 4.0 M/s operations Updates - 3.4 M/s operations False positive rate: 1.99% 2.5 mil entries 8-byte value Lookups - 13.8 M/s operations Updates - 7.7 M/s operations False positive rate: 3.91% 64-byte value Lookups - 3.7 M/s operations Updates - 3.6 M/s operations False positive rate: 3.78% 5 mil entries 8-byte value Lookups - 13.0 M/s operations Updates - 6.9 M/s operations False positive rate: 3.93% 64-byte value Lookups - 3.5 M/s operations Updates - 3.7 M/s operations False positive rate: 3.39% 5 hash functions: 50k entries 8-byte value Lookups - 16.4 M/s operations Updates - 9.1 M/s operations False positive rate: 0.78% 64-byte value Lookups - 3.5 M/s operations Updates - 3.2 M/s operations False positive rate: 0.77% 100k entries 8-byte value Lookups - 16.3 M/s operations Updates - 9.0 M/s operations False positive rate: 0.79% 64-byte value Lookups - 3.5 M/s operations Updates - 3.2 M/s operations False positive rate: 0.78% 500k entries 8-byte value Lookups - 15.1 M/s operations Updates - 8.8 M/s operations False positive rate: 1.82% 64-byte value Lookups - 3.4 M/s operations Updates - 3.0 M/s operations False positive rate: 1.78% 1 mil entries 8-byte value Lookups - 13.2 M/s operations Updates - 7.8 M/s operations False positive rate: 1.81% 64-byte value Lookups - 3.2 M/s operations Updates - 2.8 M/s operations False positive rate: 1.80% 2.5 mil entries 8-byte value Lookups - 10.5 M/s operations Updates - 5.9 M/s operations False positive rate: 0.29% 64-byte value Lookups - 3.2 M/s operations Updates - 2.4 M/s operations False positive rate: 0.28% 5 mil entries 8-byte value Lookups - 9.6 M/s operations Updates - 5.7 M/s operations False positive rate: 0.30% 64-byte value Lookups - 3.2 M/s operations Updates - 2.7 M/s operations False positive rate: 0.30% Signed-off-by: Joanne Koong <joannekoong@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20211027234504.30744-5-joannekoong@fb.com diff 57fd1c63 Wed Oct 27 17:45:03 MDT 2021 Joanne Koong <joannekoong@fb.com> bpf/benchs: Add benchmark tests for bloom filter throughput + false positive This patch adds benchmark tests for the throughput (for lookups + updates) and the false positive rate of bloom filter lookups, as well as some minor refactoring of the bash script for running the benchmarks. These benchmarks show that as the number of hash functions increases, the throughput and the false positive rate of the bloom filter decreases. >From the benchmark data, the approximate average false-positive rates are roughly as follows: 1 hash function = ~30% 2 hash functions = ~15% 3 hash functions = ~5% 4 hash functions = ~2.5% 5 hash functions = ~1% 6 hash functions = ~0.5% 7 hash functions = ~0.35% 8 hash functions = ~0.15% 9 hash functions = ~0.1% 10 hash functions = ~0% For reference data, the benchmarks run on one thread on a machine with one numa node for 1 to 5 hash functions for 8-byte and 64-byte values are as follows: 1 hash function: 50k entries 8-byte value Lookups - 51.1 M/s operations Updates - 33.6 M/s operations False positive rate: 24.15% 64-byte value Lookups - 15.7 M/s operations Updates - 15.1 M/s operations False positive rate: 24.2% 100k entries 8-byte value Lookups - 51.0 M/s operations Updates - 33.4 M/s operations False positive rate: 24.04% 64-byte value Lookups - 15.6 M/s operations Updates - 14.6 M/s operations False positive rate: 24.06% 500k entries 8-byte value Lookups - 50.5 M/s operations Updates - 33.1 M/s operations False positive rate: 27.45% 64-byte value Lookups - 15.6 M/s operations Updates - 14.2 M/s operations False positive rate: 27.42% 1 mil entries 8-byte value Lookups - 49.7 M/s operations Updates - 32.9 M/s operations False positive rate: 27.45% 64-byte value Lookups - 15.4 M/s operations Updates - 13.7 M/s operations False positive rate: 27.58% 2.5 mil entries 8-byte value Lookups - 47.2 M/s operations Updates - 31.8 M/s operations False positive rate: 30.94% 64-byte value Lookups - 15.3 M/s operations Updates - 13.2 M/s operations False positive rate: 30.95% 5 mil entries 8-byte value Lookups - 41.1 M/s operations Updates - 28.1 M/s operations False positive rate: 31.01% 64-byte value Lookups - 13.3 M/s operations Updates - 11.4 M/s operations False positive rate: 30.98% 2 hash functions: 50k entries 8-byte value Lookups - 34.1 M/s operations Updates - 20.1 M/s operations False positive rate: 9.13% 64-byte value Lookups - 8.4 M/s operations Updates - 7.9 M/s operations False positive rate: 9.21% 100k entries 8-byte value Lookups - 33.7 M/s operations Updates - 18.9 M/s operations False positive rate: 9.13% 64-byte value Lookups - 8.4 M/s operations Updates - 7.7 M/s operations False positive rate: 9.19% 500k entries 8-byte value Lookups - 32.7 M/s operations Updates - 18.1 M/s operations False positive rate: 12.61% 64-byte value Lookups - 8.4 M/s operations Updates - 7.5 M/s operations False positive rate: 12.61% 1 mil entries 8-byte value Lookups - 30.6 M/s operations Updates - 18.9 M/s operations False positive rate: 12.54% 64-byte value Lookups - 8.0 M/s operations Updates - 7.0 M/s operations False positive rate: 12.52% 2.5 mil entries 8-byte value Lookups - 25.3 M/s operations Updates - 16.7 M/s operations False positive rate: 16.77% 64-byte value Lookups - 7.9 M/s operations Updates - 6.5 M/s operations False positive rate: 16.88% 5 mil entries 8-byte value Lookups - 20.8 M/s operations Updates - 14.7 M/s operations False positive rate: 16.78% 64-byte value Lookups - 7.0 M/s operations Updates - 6.0 M/s operations False positive rate: 16.78% 3 hash functions: 50k entries 8-byte value Lookups - 25.1 M/s operations Updates - 14.6 M/s operations False positive rate: 7.65% 64-byte value Lookups - 5.8 M/s operations Updates - 5.5 M/s operations False positive rate: 7.58% 100k entries 8-byte value Lookups - 24.7 M/s operations Updates - 14.1 M/s operations False positive rate: 7.71% 64-byte value Lookups - 5.8 M/s operations Updates - 5.3 M/s operations False positive rate: 7.62% 500k entries 8-byte value Lookups - 22.9 M/s operations Updates - 13.9 M/s operations False positive rate: 2.62% 64-byte value Lookups - 5.6 M/s operations Updates - 4.8 M/s operations False positive rate: 2.7% 1 mil entries 8-byte value Lookups - 19.8 M/s operations Updates - 12.6 M/s operations False positive rate: 2.60% 64-byte value Lookups - 5.3 M/s operations Updates - 4.4 M/s operations False positive rate: 2.69% 2.5 mil entries 8-byte value Lookups - 16.2 M/s operations Updates - 10.7 M/s operations False positive rate: 4.49% 64-byte value Lookups - 4.9 M/s operations Updates - 4.1 M/s operations False positive rate: 4.41% 5 mil entries 8-byte value Lookups - 18.8 M/s operations Updates - 9.2 M/s operations False positive rate: 4.45% 64-byte value Lookups - 5.2 M/s operations Updates - 3.9 M/s operations False positive rate: 4.54% 4 hash functions: 50k entries 8-byte value Lookups - 19.7 M/s operations Updates - 11.1 M/s operations False positive rate: 1.01% 64-byte value Lookups - 4.4 M/s operations Updates - 4.0 M/s operations False positive rate: 1.00% 100k entries 8-byte value Lookups - 19.5 M/s operations Updates - 10.9 M/s operations False positive rate: 1.00% 64-byte value Lookups - 4.3 M/s operations Updates - 3.9 M/s operations False positive rate: 0.97% 500k entries 8-byte value Lookups - 18.2 M/s operations Updates - 10.6 M/s operations False positive rate: 2.05% 64-byte value Lookups - 4.3 M/s operations Updates - 3.7 M/s operations False positive rate: 2.05% 1 mil entries 8-byte value Lookups - 15.5 M/s operations Updates - 9.6 M/s operations False positive rate: 1.99% 64-byte value Lookups - 4.0 M/s operations Updates - 3.4 M/s operations False positive rate: 1.99% 2.5 mil entries 8-byte value Lookups - 13.8 M/s operations Updates - 7.7 M/s operations False positive rate: 3.91% 64-byte value Lookups - 3.7 M/s operations Updates - 3.6 M/s operations False positive rate: 3.78% 5 mil entries 8-byte value Lookups - 13.0 M/s operations Updates - 6.9 M/s operations False positive rate: 3.93% 64-byte value Lookups - 3.5 M/s operations Updates - 3.7 M/s operations False positive rate: 3.39% 5 hash functions: 50k entries 8-byte value Lookups - 16.4 M/s operations Updates - 9.1 M/s operations False positive rate: 0.78% 64-byte value Lookups - 3.5 M/s operations Updates - 3.2 M/s operations False positive rate: 0.77% 100k entries 8-byte value Lookups - 16.3 M/s operations Updates - 9.0 M/s operations False positive rate: 0.79% 64-byte value Lookups - 3.5 M/s operations Updates - 3.2 M/s operations False positive rate: 0.78% 500k entries 8-byte value Lookups - 15.1 M/s operations Updates - 8.8 M/s operations False positive rate: 1.82% 64-byte value Lookups - 3.4 M/s operations Updates - 3.0 M/s operations False positive rate: 1.78% 1 mil entries 8-byte value Lookups - 13.2 M/s operations Updates - 7.8 M/s operations False positive rate: 1.81% 64-byte value Lookups - 3.2 M/s operations Updates - 2.8 M/s operations False positive rate: 1.80% 2.5 mil entries 8-byte value Lookups - 10.5 M/s operations Updates - 5.9 M/s operations False positive rate: 0.29% 64-byte value Lookups - 3.2 M/s operations Updates - 2.4 M/s operations False positive rate: 0.28% 5 mil entries 8-byte value Lookups - 9.6 M/s operations Updates - 5.7 M/s operations False positive rate: 0.30% 64-byte value Lookups - 3.2 M/s operations Updates - 2.7 M/s operations False positive rate: 0.30% Signed-off-by: Joanne Koong <joannekoong@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20211027234504.30744-5-joannekoong@fb.com |
| H A D | bench.c | diff 57fd1c63 Wed Oct 27 17:45:03 MDT 2021 Joanne Koong <joannekoong@fb.com> bpf/benchs: Add benchmark tests for bloom filter throughput + false positive This patch adds benchmark tests for the throughput (for lookups + updates) and the false positive rate of bloom filter lookups, as well as some minor refactoring of the bash script for running the benchmarks. These benchmarks show that as the number of hash functions increases, the throughput and the false positive rate of the bloom filter decreases. >From the benchmark data, the approximate average false-positive rates are roughly as follows: 1 hash function = ~30% 2 hash functions = ~15% 3 hash functions = ~5% 4 hash functions = ~2.5% 5 hash functions = ~1% 6 hash functions = ~0.5% 7 hash functions = ~0.35% 8 hash functions = ~0.15% 9 hash functions = ~0.1% 10 hash functions = ~0% For reference data, the benchmarks run on one thread on a machine with one numa node for 1 to 5 hash functions for 8-byte and 64-byte values are as follows: 1 hash function: 50k entries 8-byte value Lookups - 51.1 M/s operations Updates - 33.6 M/s operations False positive rate: 24.15% 64-byte value Lookups - 15.7 M/s operations Updates - 15.1 M/s operations False positive rate: 24.2% 100k entries 8-byte value Lookups - 51.0 M/s operations Updates - 33.4 M/s operations False positive rate: 24.04% 64-byte value Lookups - 15.6 M/s operations Updates - 14.6 M/s operations False positive rate: 24.06% 500k entries 8-byte value Lookups - 50.5 M/s operations Updates - 33.1 M/s operations False positive rate: 27.45% 64-byte value Lookups - 15.6 M/s operations Updates - 14.2 M/s operations False positive rate: 27.42% 1 mil entries 8-byte value Lookups - 49.7 M/s operations Updates - 32.9 M/s operations False positive rate: 27.45% 64-byte value Lookups - 15.4 M/s operations Updates - 13.7 M/s operations False positive rate: 27.58% 2.5 mil entries 8-byte value Lookups - 47.2 M/s operations Updates - 31.8 M/s operations False positive rate: 30.94% 64-byte value Lookups - 15.3 M/s operations Updates - 13.2 M/s operations False positive rate: 30.95% 5 mil entries 8-byte value Lookups - 41.1 M/s operations Updates - 28.1 M/s operations False positive rate: 31.01% 64-byte value Lookups - 13.3 M/s operations Updates - 11.4 M/s operations False positive rate: 30.98% 2 hash functions: 50k entries 8-byte value Lookups - 34.1 M/s operations Updates - 20.1 M/s operations False positive rate: 9.13% 64-byte value Lookups - 8.4 M/s operations Updates - 7.9 M/s operations False positive rate: 9.21% 100k entries 8-byte value Lookups - 33.7 M/s operations Updates - 18.9 M/s operations False positive rate: 9.13% 64-byte value Lookups - 8.4 M/s operations Updates - 7.7 M/s operations False positive rate: 9.19% 500k entries 8-byte value Lookups - 32.7 M/s operations Updates - 18.1 M/s operations False positive rate: 12.61% 64-byte value Lookups - 8.4 M/s operations Updates - 7.5 M/s operations False positive rate: 12.61% 1 mil entries 8-byte value Lookups - 30.6 M/s operations Updates - 18.9 M/s operations False positive rate: 12.54% 64-byte value Lookups - 8.0 M/s operations Updates - 7.0 M/s operations False positive rate: 12.52% 2.5 mil entries 8-byte value Lookups - 25.3 M/s operations Updates - 16.7 M/s operations False positive rate: 16.77% 64-byte value Lookups - 7.9 M/s operations Updates - 6.5 M/s operations False positive rate: 16.88% 5 mil entries 8-byte value Lookups - 20.8 M/s operations Updates - 14.7 M/s operations False positive rate: 16.78% 64-byte value Lookups - 7.0 M/s operations Updates - 6.0 M/s operations False positive rate: 16.78% 3 hash functions: 50k entries 8-byte value Lookups - 25.1 M/s operations Updates - 14.6 M/s operations False positive rate: 7.65% 64-byte value Lookups - 5.8 M/s operations Updates - 5.5 M/s operations False positive rate: 7.58% 100k entries 8-byte value Lookups - 24.7 M/s operations Updates - 14.1 M/s operations False positive rate: 7.71% 64-byte value Lookups - 5.8 M/s operations Updates - 5.3 M/s operations False positive rate: 7.62% 500k entries 8-byte value Lookups - 22.9 M/s operations Updates - 13.9 M/s operations False positive rate: 2.62% 64-byte value Lookups - 5.6 M/s operations Updates - 4.8 M/s operations False positive rate: 2.7% 1 mil entries 8-byte value Lookups - 19.8 M/s operations Updates - 12.6 M/s operations False positive rate: 2.60% 64-byte value Lookups - 5.3 M/s operations Updates - 4.4 M/s operations False positive rate: 2.69% 2.5 mil entries 8-byte value Lookups - 16.2 M/s operations Updates - 10.7 M/s operations False positive rate: 4.49% 64-byte value Lookups - 4.9 M/s operations Updates - 4.1 M/s operations False positive rate: 4.41% 5 mil entries 8-byte value Lookups - 18.8 M/s operations Updates - 9.2 M/s operations False positive rate: 4.45% 64-byte value Lookups - 5.2 M/s operations Updates - 3.9 M/s operations False positive rate: 4.54% 4 hash functions: 50k entries 8-byte value Lookups - 19.7 M/s operations Updates - 11.1 M/s operations False positive rate: 1.01% 64-byte value Lookups - 4.4 M/s operations Updates - 4.0 M/s operations False positive rate: 1.00% 100k entries 8-byte value Lookups - 19.5 M/s operations Updates - 10.9 M/s operations False positive rate: 1.00% 64-byte value Lookups - 4.3 M/s operations Updates - 3.9 M/s operations False positive rate: 0.97% 500k entries 8-byte value Lookups - 18.2 M/s operations Updates - 10.6 M/s operations False positive rate: 2.05% 64-byte value Lookups - 4.3 M/s operations Updates - 3.7 M/s operations False positive rate: 2.05% 1 mil entries 8-byte value Lookups - 15.5 M/s operations Updates - 9.6 M/s operations False positive rate: 1.99% 64-byte value Lookups - 4.0 M/s operations Updates - 3.4 M/s operations False positive rate: 1.99% 2.5 mil entries 8-byte value Lookups - 13.8 M/s operations Updates - 7.7 M/s operations False positive rate: 3.91% 64-byte value Lookups - 3.7 M/s operations Updates - 3.6 M/s operations False positive rate: 3.78% 5 mil entries 8-byte value Lookups - 13.0 M/s operations Updates - 6.9 M/s operations False positive rate: 3.93% 64-byte value Lookups - 3.5 M/s operations Updates - 3.7 M/s operations False positive rate: 3.39% 5 hash functions: 50k entries 8-byte value Lookups - 16.4 M/s operations Updates - 9.1 M/s operations False positive rate: 0.78% 64-byte value Lookups - 3.5 M/s operations Updates - 3.2 M/s operations False positive rate: 0.77% 100k entries 8-byte value Lookups - 16.3 M/s operations Updates - 9.0 M/s operations False positive rate: 0.79% 64-byte value Lookups - 3.5 M/s operations Updates - 3.2 M/s operations False positive rate: 0.78% 500k entries 8-byte value Lookups - 15.1 M/s operations Updates - 8.8 M/s operations False positive rate: 1.82% 64-byte value Lookups - 3.4 M/s operations Updates - 3.0 M/s operations False positive rate: 1.78% 1 mil entries 8-byte value Lookups - 13.2 M/s operations Updates - 7.8 M/s operations False positive rate: 1.81% 64-byte value Lookups - 3.2 M/s operations Updates - 2.8 M/s operations False positive rate: 1.80% 2.5 mil entries 8-byte value Lookups - 10.5 M/s operations Updates - 5.9 M/s operations False positive rate: 0.29% 64-byte value Lookups - 3.2 M/s operations Updates - 2.4 M/s operations False positive rate: 0.28% 5 mil entries 8-byte value Lookups - 9.6 M/s operations Updates - 5.7 M/s operations False positive rate: 0.30% 64-byte value Lookups - 3.2 M/s operations Updates - 2.7 M/s operations False positive rate: 0.30% Signed-off-by: Joanne Koong <joannekoong@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20211027234504.30744-5-joannekoong@fb.com diff 57fd1c63 Wed Oct 27 17:45:03 MDT 2021 Joanne Koong <joannekoong@fb.com> bpf/benchs: Add benchmark tests for bloom filter throughput + false positive This patch adds benchmark tests for the throughput (for lookups + updates) and the false positive rate of bloom filter lookups, as well as some minor refactoring of the bash script for running the benchmarks. These benchmarks show that as the number of hash functions increases, the throughput and the false positive rate of the bloom filter decreases. >From the benchmark data, the approximate average false-positive rates are roughly as follows: 1 hash function = ~30% 2 hash functions = ~15% 3 hash functions = ~5% 4 hash functions = ~2.5% 5 hash functions = ~1% 6 hash functions = ~0.5% 7 hash functions = ~0.35% 8 hash functions = ~0.15% 9 hash functions = ~0.1% 10 hash functions = ~0% For reference data, the benchmarks run on one thread on a machine with one numa node for 1 to 5 hash functions for 8-byte and 64-byte values are as follows: 1 hash function: 50k entries 8-byte value Lookups - 51.1 M/s operations Updates - 33.6 M/s operations False positive rate: 24.15% 64-byte value Lookups - 15.7 M/s operations Updates - 15.1 M/s operations False positive rate: 24.2% 100k entries 8-byte value Lookups - 51.0 M/s operations Updates - 33.4 M/s operations False positive rate: 24.04% 64-byte value Lookups - 15.6 M/s operations Updates - 14.6 M/s operations False positive rate: 24.06% 500k entries 8-byte value Lookups - 50.5 M/s operations Updates - 33.1 M/s operations False positive rate: 27.45% 64-byte value Lookups - 15.6 M/s operations Updates - 14.2 M/s operations False positive rate: 27.42% 1 mil entries 8-byte value Lookups - 49.7 M/s operations Updates - 32.9 M/s operations False positive rate: 27.45% 64-byte value Lookups - 15.4 M/s operations Updates - 13.7 M/s operations False positive rate: 27.58% 2.5 mil entries 8-byte value Lookups - 47.2 M/s operations Updates - 31.8 M/s operations False positive rate: 30.94% 64-byte value Lookups - 15.3 M/s operations Updates - 13.2 M/s operations False positive rate: 30.95% 5 mil entries 8-byte value Lookups - 41.1 M/s operations Updates - 28.1 M/s operations False positive rate: 31.01% 64-byte value Lookups - 13.3 M/s operations Updates - 11.4 M/s operations False positive rate: 30.98% 2 hash functions: 50k entries 8-byte value Lookups - 34.1 M/s operations Updates - 20.1 M/s operations False positive rate: 9.13% 64-byte value Lookups - 8.4 M/s operations Updates - 7.9 M/s operations False positive rate: 9.21% 100k entries 8-byte value Lookups - 33.7 M/s operations Updates - 18.9 M/s operations False positive rate: 9.13% 64-byte value Lookups - 8.4 M/s operations Updates - 7.7 M/s operations False positive rate: 9.19% 500k entries 8-byte value Lookups - 32.7 M/s operations Updates - 18.1 M/s operations False positive rate: 12.61% 64-byte value Lookups - 8.4 M/s operations Updates - 7.5 M/s operations False positive rate: 12.61% 1 mil entries 8-byte value Lookups - 30.6 M/s operations Updates - 18.9 M/s operations False positive rate: 12.54% 64-byte value Lookups - 8.0 M/s operations Updates - 7.0 M/s operations False positive rate: 12.52% 2.5 mil entries 8-byte value Lookups - 25.3 M/s operations Updates - 16.7 M/s operations False positive rate: 16.77% 64-byte value Lookups - 7.9 M/s operations Updates - 6.5 M/s operations False positive rate: 16.88% 5 mil entries 8-byte value Lookups - 20.8 M/s operations Updates - 14.7 M/s operations False positive rate: 16.78% 64-byte value Lookups - 7.0 M/s operations Updates - 6.0 M/s operations False positive rate: 16.78% 3 hash functions: 50k entries 8-byte value Lookups - 25.1 M/s operations Updates - 14.6 M/s operations False positive rate: 7.65% 64-byte value Lookups - 5.8 M/s operations Updates - 5.5 M/s operations False positive rate: 7.58% 100k entries 8-byte value Lookups - 24.7 M/s operations Updates - 14.1 M/s operations False positive rate: 7.71% 64-byte value Lookups - 5.8 M/s operations Updates - 5.3 M/s operations False positive rate: 7.62% 500k entries 8-byte value Lookups - 22.9 M/s operations Updates - 13.9 M/s operations False positive rate: 2.62% 64-byte value Lookups - 5.6 M/s operations Updates - 4.8 M/s operations False positive rate: 2.7% 1 mil entries 8-byte value Lookups - 19.8 M/s operations Updates - 12.6 M/s operations False positive rate: 2.60% 64-byte value Lookups - 5.3 M/s operations Updates - 4.4 M/s operations False positive rate: 2.69% 2.5 mil entries 8-byte value Lookups - 16.2 M/s operations Updates - 10.7 M/s operations False positive rate: 4.49% 64-byte value Lookups - 4.9 M/s operations Updates - 4.1 M/s operations False positive rate: 4.41% 5 mil entries 8-byte value Lookups - 18.8 M/s operations Updates - 9.2 M/s operations False positive rate: 4.45% 64-byte value Lookups - 5.2 M/s operations Updates - 3.9 M/s operations False positive rate: 4.54% 4 hash functions: 50k entries 8-byte value Lookups - 19.7 M/s operations Updates - 11.1 M/s operations False positive rate: 1.01% 64-byte value Lookups - 4.4 M/s operations Updates - 4.0 M/s operations False positive rate: 1.00% 100k entries 8-byte value Lookups - 19.5 M/s operations Updates - 10.9 M/s operations False positive rate: 1.00% 64-byte value Lookups - 4.3 M/s operations Updates - 3.9 M/s operations False positive rate: 0.97% 500k entries 8-byte value Lookups - 18.2 M/s operations Updates - 10.6 M/s operations False positive rate: 2.05% 64-byte value Lookups - 4.3 M/s operations Updates - 3.7 M/s operations False positive rate: 2.05% 1 mil entries 8-byte value Lookups - 15.5 M/s operations Updates - 9.6 M/s operations False positive rate: 1.99% 64-byte value Lookups - 4.0 M/s operations Updates - 3.4 M/s operations False positive rate: 1.99% 2.5 mil entries 8-byte value Lookups - 13.8 M/s operations Updates - 7.7 M/s operations False positive rate: 3.91% 64-byte value Lookups - 3.7 M/s operations Updates - 3.6 M/s operations False positive rate: 3.78% 5 mil entries 8-byte value Lookups - 13.0 M/s operations Updates - 6.9 M/s operations False positive rate: 3.93% 64-byte value Lookups - 3.5 M/s operations Updates - 3.7 M/s operations False positive rate: 3.39% 5 hash functions: 50k entries 8-byte value Lookups - 16.4 M/s operations Updates - 9.1 M/s operations False positive rate: 0.78% 64-byte value Lookups - 3.5 M/s operations Updates - 3.2 M/s operations False positive rate: 0.77% 100k entries 8-byte value Lookups - 16.3 M/s operations Updates - 9.0 M/s operations False positive rate: 0.79% 64-byte value Lookups - 3.5 M/s operations Updates - 3.2 M/s operations False positive rate: 0.78% 500k entries 8-byte value Lookups - 15.1 M/s operations Updates - 8.8 M/s operations False positive rate: 1.82% 64-byte value Lookups - 3.4 M/s operations Updates - 3.0 M/s operations False positive rate: 1.78% 1 mil entries 8-byte value Lookups - 13.2 M/s operations Updates - 7.8 M/s operations False positive rate: 1.81% 64-byte value Lookups - 3.2 M/s operations Updates - 2.8 M/s operations False positive rate: 1.80% 2.5 mil entries 8-byte value Lookups - 10.5 M/s operations Updates - 5.9 M/s operations False positive rate: 0.29% 64-byte value Lookups - 3.2 M/s operations Updates - 2.4 M/s operations False positive rate: 0.28% 5 mil entries 8-byte value Lookups - 9.6 M/s operations Updates - 5.7 M/s operations False positive rate: 0.30% 64-byte value Lookups - 3.2 M/s operations Updates - 2.7 M/s operations False positive rate: 0.30% Signed-off-by: Joanne Koong <joannekoong@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20211027234504.30744-5-joannekoong@fb.com |
| H A D | Makefile | diff 46475cc0 Fri Oct 06 11:57:43 MDT 2023 Andrii Nakryiko <andrii@kernel.org> selftests/bpf: Support building selftests in optimized -O2 mode Add support for building selftests with -O2 level of optimization, which allows more compiler warnings detection (like lots of potentially uninitialized usage), but also is useful to have a faster-running test for some CPU-intensive tests. One can build optimized versions of libbpf and selftests by running: $ make RELEASE=1 There is a measurable speed up of about 10 seconds for me locally, though it's mostly capped by non-parallelized serial tests. User CPU time goes down by total 40 seconds, from 1m10s to 0m28s. Unoptimized build (-O0) ======================= Summary: 430/3544 PASSED, 25 SKIPPED, 4 FAILED real 1m59.937s user 1m10.877s sys 3m14.880s Optimized build (-O2) ===================== Summary: 425/3543 PASSED, 25 SKIPPED, 9 FAILED real 1m50.540s user 0m28.406s sys 3m13.198s Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Reviewed-by: Alan Maguire <alan.maguire@oracle.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Link: https://lore.kernel.org/bpf/20231006175744.3136675-2-andrii@kernel.org diff 925a0157 Fri Oct 06 11:57:42 MDT 2023 Andrii Nakryiko <andrii@kernel.org> selftests/bpf: Fix compiler warnings reported in -O2 mode Fix a bunch of potentially unitialized variable usage warnings that are reported by GCC in -O2 mode. Also silence overzealous stringop-truncation class of warnings. Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Jiri Olsa <jolsa@kernel.org> Link: https://lore.kernel.org/bpf/20231006175744.3136675-1-andrii@kernel.org diff a76584fc Thu Jul 27 23:57:45 MDT 2023 Yonghong Song <yonghong.song@linux.dev> selftests/bpf: Enable test test_progs-cpuv4 for gcc build kernel Currently, test_progs-cpuv4 is generated with clang build kernel when bpf cpu=v4 is supported by the clang compiler. Let us enable test_progs-cpuv4 for gcc build kernel as well. Signed-off-by: Yonghong Song <yonghong.song@linux.dev> Link: https://lore.kernel.org/r/20230728055745.2285202-1-yonghong.song@linux.dev Signed-off-by: Alexei Starovoitov <ast@kernel.org> diff 0589d164 Thu Feb 09 17:11:57 MST 2023 Ilya Leoshkevich <iii@linux.ibm.com> selftests/bpf: Split SAN_CFLAGS and SAN_LDFLAGS Memory Sanitizer requires passing different options to CFLAGS and LDFLAGS: besides the mandatory -fsanitize=memory, one needs to pass header and library paths, and passing -L to a compilation step triggers -Wunused-command-line-argument. So introduce a separate variable for linker flags. Use $(SAN_CFLAGS) as a default in order to avoid complicating the ASan usage. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20230210001210.395194-4-iii@linux.ibm.com diff c8bc5e05 Fri Sep 09 01:30:53 MDT 2022 Andrii Nakryiko <andrii@kernel.org> selftests/bpf: Add veristat tool for mass-verifying BPF object files Add a small tool, veristat, that allows mass-verification of a set of *libbpf-compatible* BPF ELF object files. For each such object file, veristat will attempt to verify each BPF program *individually*. Regardless of success or failure, it parses BPF verifier stats and outputs them in human-readable table format. In the future we can also add CSV and JSON output for more scriptable post-processing, if necessary. veristat allows to specify a set of stats that should be output and ordering between multiple objects and files (e.g., so that one can easily order by total instructions processed, instead of default file name, prog name, verdict, total instructions order). This tool should be useful for validating various BPF verifier changes or even validating different kernel versions for regressions. Here's an example for some of the heaviest selftests/bpf BPF object files: $ sudo ./veristat -s insns,file,prog {pyperf,loop,test_verif_scale,strobemeta,test_cls_redirect,profiler}*.linked3.o File Program Verdict Duration, us Total insns Total states Peak states ------------------------------------ ------------------------------------ ------- ------------ ----------- ------------ ----------- loop3.linked3.o while_true failure 350990 1000001 9663 9663 test_verif_scale3.linked3.o balancer_ingress success 115244 845499 8636 2141 test_verif_scale2.linked3.o balancer_ingress success 77688 773445 3048 788 pyperf600.linked3.o on_event success 2079872 624585 30335 30241 pyperf600_nounroll.linked3.o on_event success 353972 568128 37101 2115 strobemeta.linked3.o on_event success 455230 557149 15915 13537 test_verif_scale1.linked3.o balancer_ingress success 89880 554754 8636 2141 strobemeta_nounroll2.linked3.o on_event success 433906 501725 17087 1912 loop6.linked3.o trace_virtqueue_add_sgs success 282205 398057 8717 919 loop1.linked3.o nested_loops success 125630 361349 5504 5504 pyperf180.linked3.o on_event success 2511740 160398 11470 11446 pyperf100.linked3.o on_event success 744329 87681 6213 6191 test_cls_redirect.linked3.o cls_redirect success 54087 78925 4782 903 strobemeta_subprogs.linked3.o on_event success 57898 65420 1954 403 test_cls_redirect_subprogs.linked3.o cls_redirect success 54522 64965 4619 958 strobemeta_nounroll1.linked3.o on_event success 43313 57240 1757 382 pyperf50.linked3.o on_event success 194355 46378 3263 3241 profiler2.linked3.o tracepoint__syscalls__sys_enter_kill success 23869 43372 1423 542 pyperf_subprogs.linked3.o on_event success 29179 36358 2499 2499 profiler1.linked3.o tracepoint__syscalls__sys_enter_kill success 13052 27036 1946 936 profiler3.linked3.o tracepoint__syscalls__sys_enter_kill success 21023 26016 2186 915 profiler2.linked3.o kprobe__vfs_link success 5255 13896 303 271 profiler1.linked3.o kprobe__vfs_link success 7792 12687 1042 1041 profiler3.linked3.o kprobe__vfs_link success 7332 10601 865 865 profiler2.linked3.o kprobe_ret__do_filp_open success 3417 8900 216 199 profiler2.linked3.o kprobe__vfs_symlink success 3548 8775 203 186 pyperf_global.linked3.o on_event success 10007 7563 520 520 profiler3.linked3.o kprobe_ret__do_filp_open success 4708 6464 532 532 profiler1.linked3.o kprobe_ret__do_filp_open success 3090 6445 508 508 profiler3.linked3.o kprobe__vfs_symlink success 4477 6358 521 521 profiler1.linked3.o kprobe__vfs_symlink success 3381 6347 507 507 profiler2.linked3.o raw_tracepoint__sched_process_exec success 2464 5874 292 189 profiler3.linked3.o raw_tracepoint__sched_process_exec success 2677 4363 397 283 profiler2.linked3.o kprobe__proc_sys_write success 1800 4355 143 138 profiler1.linked3.o raw_tracepoint__sched_process_exec success 1649 4019 333 240 pyperf600_bpf_loop.linked3.o on_event success 2711 3966 306 306 profiler2.linked3.o raw_tracepoint__sched_process_exit success 1234 3138 83 66 profiler3.linked3.o kprobe__proc_sys_write success 1755 2623 223 223 profiler1.linked3.o kprobe__proc_sys_write success 1222 2456 193 193 loop2.linked3.o while_true success 608 1783 57 30 profiler3.linked3.o raw_tracepoint__sched_process_exit success 789 1680 146 146 profiler1.linked3.o raw_tracepoint__sched_process_exit success 592 1526 133 133 strobemeta_bpf_loop.linked3.o on_event success 1015 1512 106 106 loop4.linked3.o combinations success 165 524 18 17 profiler3.linked3.o raw_tracepoint__sched_process_fork success 196 299 25 25 profiler1.linked3.o raw_tracepoint__sched_process_fork success 109 265 19 19 profiler2.linked3.o raw_tracepoint__sched_process_fork success 111 265 19 19 loop5.linked3.o while_true success 47 84 9 9 ------------------------------------ ------------------------------------ ------- ------------ ----------- ------------ ----------- Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20220909193053.577111-4-andrii@kernel.org diff 012ba115 Tue Sep 06 09:12:57 MDT 2022 Benjamin Tissoires <benjamin.tissoires@redhat.com> selftests/bpf: regroup and declare similar kfuncs selftests in an array Similar to tools/testing/selftests/bpf/prog_tests/dynptr.c: we declare an array of tests that we run one by one in a for loop. Followup patches will add more similar-ish tests, so avoid a lot of copy paste by grouping the declaration in an array. For light skeletons, we have to rely on the offsetof() macro so we can statically declare which program we are using. In the libbpf case, we can rely on bpf_object__find_program_by_name(). So also change the Makefile to generate both light skeletons and normal ones. Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Acked-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Link: https://lore.kernel.org/r/20220906151303.2780789-2-benjamin.tissoires@redhat.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> diff 36e70b9b Thu Oct 28 10:10:57 MDT 2021 Björn Töpel <bjorn@kernel.org> selftests, bpf: Fix broken riscv build This patch is closely related to commit 6016df8fe874 ("selftests/bpf: Fix broken riscv build"). When clang includes the system include directories, but targeting BPF program, __BITS_PER_LONG defaults to 32, unless explicitly set. Work around this problem, by explicitly setting __BITS_PER_LONG to __riscv_xlen. Signed-off-by: Björn Töpel <bjorn@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20211028161057.520552-5-bjorn@kernel.org diff 57fd1c63 Wed Oct 27 17:45:03 MDT 2021 Joanne Koong <joannekoong@fb.com> bpf/benchs: Add benchmark tests for bloom filter throughput + false positive This patch adds benchmark tests for the throughput (for lookups + updates) and the false positive rate of bloom filter lookups, as well as some minor refactoring of the bash script for running the benchmarks. These benchmarks show that as the number of hash functions increases, the throughput and the false positive rate of the bloom filter decreases. >From the benchmark data, the approximate average false-positive rates are roughly as follows: 1 hash function = ~30% 2 hash functions = ~15% 3 hash functions = ~5% 4 hash functions = ~2.5% 5 hash functions = ~1% 6 hash functions = ~0.5% 7 hash functions = ~0.35% 8 hash functions = ~0.15% 9 hash functions = ~0.1% 10 hash functions = ~0% For reference data, the benchmarks run on one thread on a machine with one numa node for 1 to 5 hash functions for 8-byte and 64-byte values are as follows: 1 hash function: 50k entries 8-byte value Lookups - 51.1 M/s operations Updates - 33.6 M/s operations False positive rate: 24.15% 64-byte value Lookups - 15.7 M/s operations Updates - 15.1 M/s operations False positive rate: 24.2% 100k entries 8-byte value Lookups - 51.0 M/s operations Updates - 33.4 M/s operations False positive rate: 24.04% 64-byte value Lookups - 15.6 M/s operations Updates - 14.6 M/s operations False positive rate: 24.06% 500k entries 8-byte value Lookups - 50.5 M/s operations Updates - 33.1 M/s operations False positive rate: 27.45% 64-byte value Lookups - 15.6 M/s operations Updates - 14.2 M/s operations False positive rate: 27.42% 1 mil entries 8-byte value Lookups - 49.7 M/s operations Updates - 32.9 M/s operations False positive rate: 27.45% 64-byte value Lookups - 15.4 M/s operations Updates - 13.7 M/s operations False positive rate: 27.58% 2.5 mil entries 8-byte value Lookups - 47.2 M/s operations Updates - 31.8 M/s operations False positive rate: 30.94% 64-byte value Lookups - 15.3 M/s operations Updates - 13.2 M/s operations False positive rate: 30.95% 5 mil entries 8-byte value Lookups - 41.1 M/s operations Updates - 28.1 M/s operations False positive rate: 31.01% 64-byte value Lookups - 13.3 M/s operations Updates - 11.4 M/s operations False positive rate: 30.98% 2 hash functions: 50k entries 8-byte value Lookups - 34.1 M/s operations Updates - 20.1 M/s operations False positive rate: 9.13% 64-byte value Lookups - 8.4 M/s operations Updates - 7.9 M/s operations False positive rate: 9.21% 100k entries 8-byte value Lookups - 33.7 M/s operations Updates - 18.9 M/s operations False positive rate: 9.13% 64-byte value Lookups - 8.4 M/s operations Updates - 7.7 M/s operations False positive rate: 9.19% 500k entries 8-byte value Lookups - 32.7 M/s operations Updates - 18.1 M/s operations False positive rate: 12.61% 64-byte value Lookups - 8.4 M/s operations Updates - 7.5 M/s operations False positive rate: 12.61% 1 mil entries 8-byte value Lookups - 30.6 M/s operations Updates - 18.9 M/s operations False positive rate: 12.54% 64-byte value Lookups - 8.0 M/s operations Updates - 7.0 M/s operations False positive rate: 12.52% 2.5 mil entries 8-byte value Lookups - 25.3 M/s operations Updates - 16.7 M/s operations False positive rate: 16.77% 64-byte value Lookups - 7.9 M/s operations Updates - 6.5 M/s operations False positive rate: 16.88% 5 mil entries 8-byte value Lookups - 20.8 M/s operations Updates - 14.7 M/s operations False positive rate: 16.78% 64-byte value Lookups - 7.0 M/s operations Updates - 6.0 M/s operations False positive rate: 16.78% 3 hash functions: 50k entries 8-byte value Lookups - 25.1 M/s operations Updates - 14.6 M/s operations False positive rate: 7.65% 64-byte value Lookups - 5.8 M/s operations Updates - 5.5 M/s operations False positive rate: 7.58% 100k entries 8-byte value Lookups - 24.7 M/s operations Updates - 14.1 M/s operations False positive rate: 7.71% 64-byte value Lookups - 5.8 M/s operations Updates - 5.3 M/s operations False positive rate: 7.62% 500k entries 8-byte value Lookups - 22.9 M/s operations Updates - 13.9 M/s operations False positive rate: 2.62% 64-byte value Lookups - 5.6 M/s operations Updates - 4.8 M/s operations False positive rate: 2.7% 1 mil entries 8-byte value Lookups - 19.8 M/s operations Updates - 12.6 M/s operations False positive rate: 2.60% 64-byte value Lookups - 5.3 M/s operations Updates - 4.4 M/s operations False positive rate: 2.69% 2.5 mil entries 8-byte value Lookups - 16.2 M/s operations Updates - 10.7 M/s operations False positive rate: 4.49% 64-byte value Lookups - 4.9 M/s operations Updates - 4.1 M/s operations False positive rate: 4.41% 5 mil entries 8-byte value Lookups - 18.8 M/s operations Updates - 9.2 M/s operations False positive rate: 4.45% 64-byte value Lookups - 5.2 M/s operations Updates - 3.9 M/s operations False positive rate: 4.54% 4 hash functions: 50k entries 8-byte value Lookups - 19.7 M/s operations Updates - 11.1 M/s operations False positive rate: 1.01% 64-byte value Lookups - 4.4 M/s operations Updates - 4.0 M/s operations False positive rate: 1.00% 100k entries 8-byte value Lookups - 19.5 M/s operations Updates - 10.9 M/s operations False positive rate: 1.00% 64-byte value Lookups - 4.3 M/s operations Updates - 3.9 M/s operations False positive rate: 0.97% 500k entries 8-byte value Lookups - 18.2 M/s operations Updates - 10.6 M/s operations False positive rate: 2.05% 64-byte value Lookups - 4.3 M/s operations Updates - 3.7 M/s operations False positive rate: 2.05% 1 mil entries 8-byte value Lookups - 15.5 M/s operations Updates - 9.6 M/s operations False positive rate: 1.99% 64-byte value Lookups - 4.0 M/s operations Updates - 3.4 M/s operations False positive rate: 1.99% 2.5 mil entries 8-byte value Lookups - 13.8 M/s operations Updates - 7.7 M/s operations False positive rate: 3.91% 64-byte value Lookups - 3.7 M/s operations Updates - 3.6 M/s operations False positive rate: 3.78% 5 mil entries 8-byte value Lookups - 13.0 M/s operations Updates - 6.9 M/s operations False positive rate: 3.93% 64-byte value Lookups - 3.5 M/s operations Updates - 3.7 M/s operations False positive rate: 3.39% 5 hash functions: 50k entries 8-byte value Lookups - 16.4 M/s operations Updates - 9.1 M/s operations False positive rate: 0.78% 64-byte value Lookups - 3.5 M/s operations Updates - 3.2 M/s operations False positive rate: 0.77% 100k entries 8-byte value Lookups - 16.3 M/s operations Updates - 9.0 M/s operations False positive rate: 0.79% 64-byte value Lookups - 3.5 M/s operations Updates - 3.2 M/s operations False positive rate: 0.78% 500k entries 8-byte value Lookups - 15.1 M/s operations Updates - 8.8 M/s operations False positive rate: 1.82% 64-byte value Lookups - 3.4 M/s operations Updates - 3.0 M/s operations False positive rate: 1.78% 1 mil entries 8-byte value Lookups - 13.2 M/s operations Updates - 7.8 M/s operations False positive rate: 1.81% 64-byte value Lookups - 3.2 M/s operations Updates - 2.8 M/s operations False positive rate: 1.80% 2.5 mil entries 8-byte value Lookups - 10.5 M/s operations Updates - 5.9 M/s operations False positive rate: 0.29% 64-byte value Lookups - 3.2 M/s operations Updates - 2.4 M/s operations False positive rate: 0.28% 5 mil entries 8-byte value Lookups - 9.6 M/s operations Updates - 5.7 M/s operations False positive rate: 0.30% 64-byte value Lookups - 3.2 M/s operations Updates - 2.7 M/s operations False positive rate: 0.30% Signed-off-by: Joanne Koong <joannekoong@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20211027234504.30744-5-joannekoong@fb.com diff 57fd1c63 Wed Oct 27 17:45:03 MDT 2021 Joanne Koong <joannekoong@fb.com> bpf/benchs: Add benchmark tests for bloom filter throughput + false positive This patch adds benchmark tests for the throughput (for lookups + updates) and the false positive rate of bloom filter lookups, as well as some minor refactoring of the bash script for running the benchmarks. These benchmarks show that as the number of hash functions increases, the throughput and the false positive rate of the bloom filter decreases. >From the benchmark data, the approximate average false-positive rates are roughly as follows: 1 hash function = ~30% 2 hash functions = ~15% 3 hash functions = ~5% 4 hash functions = ~2.5% 5 hash functions = ~1% 6 hash functions = ~0.5% 7 hash functions = ~0.35% 8 hash functions = ~0.15% 9 hash functions = ~0.1% 10 hash functions = ~0% For reference data, the benchmarks run on one thread on a machine with one numa node for 1 to 5 hash functions for 8-byte and 64-byte values are as follows: 1 hash function: 50k entries 8-byte value Lookups - 51.1 M/s operations Updates - 33.6 M/s operations False positive rate: 24.15% 64-byte value Lookups - 15.7 M/s operations Updates - 15.1 M/s operations False positive rate: 24.2% 100k entries 8-byte value Lookups - 51.0 M/s operations Updates - 33.4 M/s operations False positive rate: 24.04% 64-byte value Lookups - 15.6 M/s operations Updates - 14.6 M/s operations False positive rate: 24.06% 500k entries 8-byte value Lookups - 50.5 M/s operations Updates - 33.1 M/s operations False positive rate: 27.45% 64-byte value Lookups - 15.6 M/s operations Updates - 14.2 M/s operations False positive rate: 27.42% 1 mil entries 8-byte value Lookups - 49.7 M/s operations Updates - 32.9 M/s operations False positive rate: 27.45% 64-byte value Lookups - 15.4 M/s operations Updates - 13.7 M/s operations False positive rate: 27.58% 2.5 mil entries 8-byte value Lookups - 47.2 M/s operations Updates - 31.8 M/s operations False positive rate: 30.94% 64-byte value Lookups - 15.3 M/s operations Updates - 13.2 M/s operations False positive rate: 30.95% 5 mil entries 8-byte value Lookups - 41.1 M/s operations Updates - 28.1 M/s operations False positive rate: 31.01% 64-byte value Lookups - 13.3 M/s operations Updates - 11.4 M/s operations False positive rate: 30.98% 2 hash functions: 50k entries 8-byte value Lookups - 34.1 M/s operations Updates - 20.1 M/s operations False positive rate: 9.13% 64-byte value Lookups - 8.4 M/s operations Updates - 7.9 M/s operations False positive rate: 9.21% 100k entries 8-byte value Lookups - 33.7 M/s operations Updates - 18.9 M/s operations False positive rate: 9.13% 64-byte value Lookups - 8.4 M/s operations Updates - 7.7 M/s operations False positive rate: 9.19% 500k entries 8-byte value Lookups - 32.7 M/s operations Updates - 18.1 M/s operations False positive rate: 12.61% 64-byte value Lookups - 8.4 M/s operations Updates - 7.5 M/s operations False positive rate: 12.61% 1 mil entries 8-byte value Lookups - 30.6 M/s operations Updates - 18.9 M/s operations False positive rate: 12.54% 64-byte value Lookups - 8.0 M/s operations Updates - 7.0 M/s operations False positive rate: 12.52% 2.5 mil entries 8-byte value Lookups - 25.3 M/s operations Updates - 16.7 M/s operations False positive rate: 16.77% 64-byte value Lookups - 7.9 M/s operations Updates - 6.5 M/s operations False positive rate: 16.88% 5 mil entries 8-byte value Lookups - 20.8 M/s operations Updates - 14.7 M/s operations False positive rate: 16.78% 64-byte value Lookups - 7.0 M/s operations Updates - 6.0 M/s operations False positive rate: 16.78% 3 hash functions: 50k entries 8-byte value Lookups - 25.1 M/s operations Updates - 14.6 M/s operations False positive rate: 7.65% 64-byte value Lookups - 5.8 M/s operations Updates - 5.5 M/s operations False positive rate: 7.58% 100k entries 8-byte value Lookups - 24.7 M/s operations Updates - 14.1 M/s operations False positive rate: 7.71% 64-byte value Lookups - 5.8 M/s operations Updates - 5.3 M/s operations False positive rate: 7.62% 500k entries 8-byte value Lookups - 22.9 M/s operations Updates - 13.9 M/s operations False positive rate: 2.62% 64-byte value Lookups - 5.6 M/s operations Updates - 4.8 M/s operations False positive rate: 2.7% 1 mil entries 8-byte value Lookups - 19.8 M/s operations Updates - 12.6 M/s operations False positive rate: 2.60% 64-byte value Lookups - 5.3 M/s operations Updates - 4.4 M/s operations False positive rate: 2.69% 2.5 mil entries 8-byte value Lookups - 16.2 M/s operations Updates - 10.7 M/s operations False positive rate: 4.49% 64-byte value Lookups - 4.9 M/s operations Updates - 4.1 M/s operations False positive rate: 4.41% 5 mil entries 8-byte value Lookups - 18.8 M/s operations Updates - 9.2 M/s operations False positive rate: 4.45% 64-byte value Lookups - 5.2 M/s operations Updates - 3.9 M/s operations False positive rate: 4.54% 4 hash functions: 50k entries 8-byte value Lookups - 19.7 M/s operations Updates - 11.1 M/s operations False positive rate: 1.01% 64-byte value Lookups - 4.4 M/s operations Updates - 4.0 M/s operations False positive rate: 1.00% 100k entries 8-byte value Lookups - 19.5 M/s operations Updates - 10.9 M/s operations False positive rate: 1.00% 64-byte value Lookups - 4.3 M/s operations Updates - 3.9 M/s operations False positive rate: 0.97% 500k entries 8-byte value Lookups - 18.2 M/s operations Updates - 10.6 M/s operations False positive rate: 2.05% 64-byte value Lookups - 4.3 M/s operations Updates - 3.7 M/s operations False positive rate: 2.05% 1 mil entries 8-byte value Lookups - 15.5 M/s operations Updates - 9.6 M/s operations False positive rate: 1.99% 64-byte value Lookups - 4.0 M/s operations Updates - 3.4 M/s operations False positive rate: 1.99% 2.5 mil entries 8-byte value Lookups - 13.8 M/s operations Updates - 7.7 M/s operations False positive rate: 3.91% 64-byte value Lookups - 3.7 M/s operations Updates - 3.6 M/s operations False positive rate: 3.78% 5 mil entries 8-byte value Lookups - 13.0 M/s operations Updates - 6.9 M/s operations False positive rate: 3.93% 64-byte value Lookups - 3.5 M/s operations Updates - 3.7 M/s operations False positive rate: 3.39% 5 hash functions: 50k entries 8-byte value Lookups - 16.4 M/s operations Updates - 9.1 M/s operations False positive rate: 0.78% 64-byte value Lookups - 3.5 M/s operations Updates - 3.2 M/s operations False positive rate: 0.77% 100k entries 8-byte value Lookups - 16.3 M/s operations Updates - 9.0 M/s operations False positive rate: 0.79% 64-byte value Lookups - 3.5 M/s operations Updates - 3.2 M/s operations False positive rate: 0.78% 500k entries 8-byte value Lookups - 15.1 M/s operations Updates - 8.8 M/s operations False positive rate: 1.82% 64-byte value Lookups - 3.4 M/s operations Updates - 3.0 M/s operations False positive rate: 1.78% 1 mil entries 8-byte value Lookups - 13.2 M/s operations Updates - 7.8 M/s operations False positive rate: 1.81% 64-byte value Lookups - 3.2 M/s operations Updates - 2.8 M/s operations False positive rate: 1.80% 2.5 mil entries 8-byte value Lookups - 10.5 M/s operations Updates - 5.9 M/s operations False positive rate: 0.29% 64-byte value Lookups - 3.2 M/s operations Updates - 2.4 M/s operations False positive rate: 0.28% 5 mil entries 8-byte value Lookups - 9.6 M/s operations Updates - 5.7 M/s operations False positive rate: 0.30% 64-byte value Lookups - 3.2 M/s operations Updates - 2.7 M/s operations False positive rate: 0.30% Signed-off-by: Joanne Koong <joannekoong@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20211027234504.30744-5-joannekoong@fb.com diff c48e51c8 Fri Oct 01 19:17:57 MDT 2021 Kumar Kartikeya Dwivedi <memxor@gmail.com> bpf: selftests: Add selftests for module kfunc support This adds selftests that tests the success and failure path for modules kfuncs (in presence of invalid kfunc calls) for both libbpf and gen_loader. It also adds a prog_test kfunc_btf_id_list so that we can add module BTF ID set from bpf_testmod. This also introduces a couple of test cases to verifier selftests for validating whether we get an error or not depending on if invalid kfunc call remains after elimination of unreachable instructions. Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20211002011757.311265-10-memxor@gmail.com |
Completed in 492 milliseconds