Re: [ovs-dev] ovs-vswitchd 2.4.1 scale >10K add/delete flows 100% cpu
On Wed, Jul 11, 2018 at 10:33:51AM -0700, Ravi Kerur wrote: > On Tue, Jul 10, 2018 at 2:07 PM Ben Pfaff wrote: > > > On Thu, Jul 05, 2018 at 01:44:33PM -0700, Ravi Kerur wrote: > > > During scale flow add/delete (>10K), I am seeing ovs-vswitchd cpu usage > > > spike to 100% and stay there without any sign of returning to normal cpu > > > usage. It's normal OVS 2.4.1 and no DPDK involved. I am trying to get > > > 'perf' working which might help in isolating the problem. In the > > meantime I > > > would like to understand following things > > > > > > (1) Recommended system configuration i.e. core allocation, memory, > > > hugepages, ... > > > (2) Published scale numbers for 2.4.1 > > > (3) Known performance issues with 2.4.1 > > > (4) Debugs to collect > > > > 2.4.x is really old. It was released in 2015. I doubt anyone is going > > to be able to help you with it. > > > > Thanks for the information. We are using OF1.3, (10K) Add/Delete come into > OVS as a individual flowmod. > > Currently I have three versions in our lab > > (1) OVS 2.4.1 -- issue is seen, I am still trying to get 'perf' running on > that system. Once I have it running I will post more details. > (2) OVS 2.5.x -- Using this version with DPDK for other things > (3) OVS 2.9.90 -- Currently testing for vhost-virtio functionality > > Do you think OVS 2.5.x might be better suited for large number of > individual flowmods or you recommend 2.9.90? Usually I recommend the most recent version of OVS that you're comfortable with. ___ dev mailing list d...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-dev
Re: [ovs-dev] ovs-vswitchd 2.4.1 scale >10K add/delete flows 100% cpu
On Tue, Jul 10, 2018 at 2:07 PM Ben Pfaff wrote: > On Thu, Jul 05, 2018 at 01:44:33PM -0700, Ravi Kerur wrote: > > During scale flow add/delete (>10K), I am seeing ovs-vswitchd cpu usage > > spike to 100% and stay there without any sign of returning to normal cpu > > usage. It's normal OVS 2.4.1 and no DPDK involved. I am trying to get > > 'perf' working which might help in isolating the problem. In the > meantime I > > would like to understand following things > > > > (1) Recommended system configuration i.e. core allocation, memory, > > hugepages, ... > > (2) Published scale numbers for 2.4.1 > > (3) Known performance issues with 2.4.1 > > (4) Debugs to collect > > 2.4.x is really old. It was released in 2015. I doubt anyone is going > to be able to help you with it. > Thanks for the information. We are using OF1.3, (10K) Add/Delete come into OVS as a individual flowmod. Currently I have three versions in our lab (1) OVS 2.4.1 -- issue is seen, I am still trying to get 'perf' running on that system. Once I have it running I will post more details. (2) OVS 2.5.x -- Using this version with DPDK for other things (3) OVS 2.9.90 -- Currently testing for vhost-virtio functionality Do you think OVS 2.5.x might be better suited for large number of individual flowmods or you recommend 2.9.90? ___ dev mailing list d...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-dev
Re: [ovs-dev] ovs-vswitchd 2.4.1 scale >10K add/delete flows 100% cpu
On Thu, Jul 05, 2018 at 01:44:33PM -0700, Ravi Kerur wrote: > During scale flow add/delete (>10K), I am seeing ovs-vswitchd cpu usage > spike to 100% and stay there without any sign of returning to normal cpu > usage. It's normal OVS 2.4.1 and no DPDK involved. I am trying to get > 'perf' working which might help in isolating the problem. In the meantime I > would like to understand following things > > (1) Recommended system configuration i.e. core allocation, memory, > hugepages, ... > (2) Published scale numbers for 2.4.1 > (3) Known performance issues with 2.4.1 > (4) Debugs to collect 2.4.x is really old. It was released in 2015. I doubt anyone is going to be able to help you with it. ___ dev mailing list d...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-dev
