On Fri, Jul 4, 2014 at 8:39 PM, Ben Pfaff <[email protected]> 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. _______________________________________________ discuss mailing list [email protected] http://openvswitch.org/mailman/listinfo/discuss
