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267654 |
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19-Jun-2014 |
gjb |
Copy stable/9 to releng/9.3 as part of the 9.3-RELEASE cycle.
Approved by: re (implicit) Sponsored by: The FreeBSD Foundation |
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225736 |
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22-Sep-2011 |
kensmith |
Copy head to stable/9 as part of 9.0-RELEASE release cycle.
Approved by: re (implicit)
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208873 |
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06-Jun-2010 |
rwatson |
Rework tcpp output so that it generates a comma-delimited list of values, optionally with a header if "-h" is passed. Toast CPU time measurement in the server for now. Remove -C and -T, since we now always report both connections/sec and Gb/sec.
MFC after: 1 week Sponsored by: Juniper Networks
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208859 |
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05-Jun-2010 |
rwatson |
Although we currently don't compile in CPU-pinning support by default, add a -P to enable it if it were.
MFC after: 1 week Sponsored by: Juniper Networks
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206972 |
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20-Apr-2010 |
rwatson |
Merge @176820, @176822, @177156 to tcpp from P4 to HEAD:
Improve accuracy of connection data transfer math.
Disable Nagle's algorithm to avoid delaying transfers of data -- will want to refine this to combine payload with header transfer, however.
Now that we're running w/o Nagle, try to send the initial data burst with the header in a single TCP segment.
Prefer %zu to %ju for size_t.
MFC after: 1 week Sponsored by: Juniper, Inc.
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189623 |
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10-Mar-2009 |
rwatson |
Add tcpp -- TCP parallelism microbenchmark.
This tool creates large numbers of TCP connections, each of which will transmit a fixed amount of data, between client and server hosts. tcpp can use multiple workers (typically up to the number of hardware cores), and can use multiple source IPs in order to use an expanded port/IP 4-tuple space to avoid problems from reusing 4-tuples too quickly. Aggregate bandwidth use will be reported after a client run.
While by no means a perfect tool, it has proven quite useful in generating and optimizing TCP stack lock contention by easily generating high-intensity workloads. It also proves surprisingly good at finding device driver bugs.
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