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| /linux-master/net/openvswitch/ | ||
| H A D | datapath.c | diff 795449d8 Sat Nov 30 05:21:32 MST 2013 Thomas Graf <tgraf@suug.ch> openvswitch: Enable memory mapped Netlink i/o Use memory mapped Netlink i/o for all unicast openvswitch communication if a ring has been set up. Benchmark * pktgen -> ovs internal port * 5M pkts, 5M flows * 4 threads, 8 cores Before: Result: OK: 67418743(c67108212+d310530) usec, 5000000 (9000byte,0frags) 74163pps 5339Mb/sec (5339736000bps) errors: 0 + 2.98% ovs-vswitchd [k] copy_user_generic_string + 2.49% ovs-vswitchd [k] memcpy + 1.84% kpktgend_2 [k] memcpy + 1.81% kpktgend_1 [k] memcpy + 1.81% kpktgend_3 [k] memcpy + 1.78% kpktgend_0 [k] memcpy After: Result: OK: 24229690(c24127165+d102524) usec, 5000000 (9000byte,0frags) 206358pps 14857Mb/sec (14857776000bps) errors: 0 + 2.80% ovs-vswitchd [k] memcpy + 1.31% kpktgend_2 [k] memcpy + 1.23% kpktgend_0 [k] memcpy + 1.09% kpktgend_1 [k] memcpy + 1.04% kpktgend_3 [k] memcpy + 0.96% ovs-vswitchd [k] copy_user_generic_string Signed-off-by: Thomas Graf <tgraf@suug.ch> Reviewed-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: Jesse Gross <jesse@nicira.com> |
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