Re: [ovs-discuss] Netperf generates warnings

2012-12-20 Thread Farrukh Aftab Khan
I only saw this warning once. And I have failed to reproduce it since then. So I won't be able to share the ovs-dpctl stats. If I ever see the warning again, I will report the output of "ovs-dpctl show" then. At the moment, my output is as follows: system@br0: lookups: hit:1695107704 misse

Re: [ovs-discuss] Netperf generates warnings

2012-12-19 Thread Justin Pettit
That one is more worrisome. I believe that's an indication that packets are getting dropped on the way to ovs-vswitchd. If you're using the software kernel datapath, do you see the "lost" count going up in "ovs-dpctl show"? Are you only seeing this when you first kick on the netperf tests? W

Re: [ovs-discuss] Netperf generates warnings

2012-12-19 Thread Farrukh Aftab Khan
I was also getting the following warnings: Jan 1 00:31:07 (none) daemon.warn ovs-vswitchd: 00017|dpif|WARN|system@br0: recv failed (No buffer space available) I looked up some old posts from OVS discuss ( http://www.mail-archive.com/discuss@openvswitch.org/msg03385.html), where Ben had provided

Re: [ovs-discuss] Netperf generates warnings

2012-12-19 Thread Farrukh Aftab Khan
Thanks for the explanation Justin. I have lowered their log levels and I don't these warnings anymore. Thanks for the help. Regards. - Farrukh Aftab Khan xFlow Research Inc. On Wed, Dec 19, 2012 at 10:14 PM, Justin Pettit wrote: > OVS logs these when the CPU usage spikes. That message stating

Re: [ovs-discuss] Netperf generates warnings

2012-12-19 Thread Justin Pettit
OVS logs these when the CPU usage spikes. That message stating the poll interval was over 29 times the weighted mean interval triggered the coverage counters below it. It shouldn't print that again unless there's another sudden spike in CPU usage that would delay the time through the poll loop

[ovs-discuss] Netperf generates warnings

2012-12-19 Thread Farrukh Aftab Khan
Hello, I am using OVS-1.7.1 on embedded Linux (kernel-2.6.32.27). I am generating traffic at high data rate using 'netperf' and I get the following warnings: 1970-01-01T00:18:54Z|00029|timeval|WARN|51 ms poll interval (0 ms user, 50 ms system) is over 29 times the weighted mean interval 2 ms (242