Hey Han,
On Thu, Jul 31, 2014 at 1:33 AM, Han Zhou <zhou...@gmail.com> wrote: > 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. > > Still, want to know the kind if traffic you used in your test. > 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 This sample is outdated, since there is no queue overflow in the last 5 sec nor last minute. so you cannot tell, that the cpu utilization when the queue overflow happens. > This problem should go away when dispatcher is removed, do you know > when would it be in stable release? > > The removal of dispatcher thread will help, > 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
