Re: [PATCH v2 2/2] openvswitch: use percpu flow stats
From: pravin shelar <hidden>
Date: 2016-09-18 02:07:30
On Thu, Sep 15, 2016 at 3:11 PM, Thadeu Lima de Souza Cascardo [off-list ref] 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 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 <redacted> Cc: pravin shelar <redacted>
Looks good. Acked-by: Pravin B Shelar <redacted> _______________________________________________ dev mailing list dev@openvswitch.org http://openvswitch.org/mailman/listinfo/dev