On Fri, Jul 04, 2014 at 09:02:40PM +0400, Andrey Korolyov wrote: > On Fri, Jul 4, 2014 at 8:39 PM, Ben Pfaff <b...@nicira.com> wrote: > > On Fri, Jul 04, 2014 at 02:39:18PM +0400, Andrey Korolyov wrote: > >> is there any plans around to introduce built-in performance statistics > >> for userspace switch process? Right now one is able to check memory > >> consumption statistics and it will be quite awesome to introduce kind > >> of interface for measurement of thread performance too. > > > > We have performance counters. What do you want to measure? > > For example, total cpu utilization by workers not involving external > monitoring tools. There are two cases - reactive flows, which > currently have almost linear characteristic for utilization vs flow > rate when adding unique flows on moderate speed (30k/s with six cores > of E5 series as a ceiling), and proactive mask/asterisk flows which > has sublinear characteristic even being far away from the actual > ceiling. In the second case vswitchd heavily relies on decisions made > inside module` heuristic, so same flow hit rate can produce very > different cpu utilization for userspace vswitchd.
I'm not sure how OVS would do a better job of that than external monitoring tools. Doing a good job would probably mean producing a time series for each thread's CPU usage. A regular log file isn't ideal for that. _______________________________________________ discuss mailing list discuss@openvswitch.org http://openvswitch.org/mailman/listinfo/discuss
