subject:"\[ovs\-dev\] \[PATCH 2\/2\] openvswitch\: use percpu flow stats"

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

2016-09-12 Thread pravin shelar

On Fri, Sep 9, 2016 at 1:41 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 >

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

2016-09-09 Thread Thadeu Lima de Souza Cascardo

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.