diff options
| author | Thadeu Lima de Souza Cascardo <cascardo@redhat.com> | 2016-09-15 22:11:53 (GMT) |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-09-19 02:14:01 (GMT) |
| commit | db74a3335e0f645e3139c80bcfc90feb01d8e304 (patch) | |
| tree | 5adec60da4faa80b188cc0b45639224c0a197db4 /mm/vmscan.c | |
| parent | 40773966ccf1985a1b2bb570a03cbeaf1cbd4e00 (diff) | |
| download | linux-db74a3335e0f645e3139c80bcfc90feb01d8e304.tar.xz | |
openvswitch: use percpu flow stats
Instead of using flow stats per NUMA node, use it per CPU. When using
megaflows, the stats lock can be a bottleneck in scalability.
On a E5-2690 12-core system, usual throughput went from ~4Mpps to
~15Mpps when forwarding between two 40GbE ports with a single flow
configured on the datapath.
This has been tested on a system with possible CPUs 0-7,16-23. After
module removal, there were no corruption on the slab cache.
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@redhat.com>
Cc: pravin shelar <pshelar@ovn.org>
Acked-by: Pravin B Shelar <pshelar@ovn.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'mm/vmscan.c')
0 files changed, 0 insertions, 0 deletions