Hi Alex, We had to upgrade to OVS2.1, and everything looks much better. The flow miss rate decreased from 20K/sec to 1.5K/sec, which means in OVS2.0 there was problem of creating datapath flows (indicated by the counter subfacet_install_fail), which then resulted in high miss rate and high OVS cpu.
However, there are still occasional increase of upcall_queue_overflow, and the cpu load of handler threads are not high (< 10 %). upcall_queue_overflow 0.0/sec 0.000/sec 0.1339/sec total: 15671 This problem should go away when dispatcher is removed, do you know when would it be in stable release? Best regards, Han On Wed, Jul 30, 2014 at 6:11 PM, Han Zhou <zhou...@gmail.com> wrote: > Hi Alex, > > In our environment this counter subfacet_install_fail increases > quickly about 100/sec. > Could you help tell what could be the reasons, and what would be the impact? > This is OVS2.0. (We would like to upgrade, but not this moment in that > production environment, so it would be good to understand the cause > and effect). > > Best regards, > Han _______________________________________________ discuss mailing list discuss@openvswitch.org http://openvswitch.org/mailman/listinfo/discuss
