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| author | Thomas Graf <tgraf@suug.ch> | 2013-11-30 13:21:32 +0100 |
|---|---|---|
| committer | Jesse Gross <jesse@nicira.com> | 2014-01-06 15:52:12 -0800 |
| commit | 795449d8b846a42d11d47d6ff2f51ab2967411c3 (patch) | |
| tree | eeffc34bfce44f151761d61637bfa13f045c4bd6 /tools/cgroup | |
| parent | aae9f0e22c07f6b97752741156ac0b3637d37a1a (diff) | |
| download | blackbird-op-linux-795449d8b846a42d11d47d6ff2f51ab2967411c3.tar.gz blackbird-op-linux-795449d8b846a42d11d47d6ff2f51ab2967411c3.zip | |
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>
Diffstat (limited to 'tools/cgroup')
0 files changed, 0 insertions, 0 deletions
