Re: [ovs-dev] [PATCH v2 2/2] openvswitch: use percpu flow stats

2016-09-18 Thread David Miller
From: Thadeu Lima de Souza Cascardo Date: Thu, 15 Sep 2016 19:11:53 -0300 > 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

Re: [ovs-dev] [PATCH v2 2/2] openvswitch: use percpu flow stats

2016-09-17 Thread pravin shelar
On Thu, Sep 15, 2016 at 3:11 PM, Thadeu Lima de Souza Cascardo wrote: > 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

Re: [ovs-dev] [PATCH v2 2/2] openvswitch: use percpu flow stats

2016-09-15 Thread Thadeu Lima de Souza Cascardo
On Thu, Sep 15, 2016 at 04:09:26PM -0700, Eric Dumazet wrote: > On Thu, 2016-09-15 at 19:11 -0300, Thadeu Lima de Souza Cascardo wrote: > > 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

Re: [ovs-dev] [PATCH v2 2/2] openvswitch: use percpu flow stats

2016-09-15 Thread Eric Dumazet
On Thu, 2016-09-15 at 19:11 -0300, Thadeu Lima de Souza Cascardo wrote: > 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