I'm surprised you're not CCing Thomas then. Thomas's setup and results look pretty clear to me. pktgen to generate traffic. Without the patch, 74 kpps, with the patch 206 kpps, roughly 3x performance.
On Wed, Dec 04, 2013 at 06:22:17AM +0000, Zhuangyuxin wrote: > Actually, the result I mentioned is from Thomas' review. Here's the > whole snippet. I'm wondering how to test and measure the unicast > netlink I/O performance improvement. > > ----------- Cited ----------- > Benchmark > * pktgen -> ovs internal port > * 5M pkts, 5M flows > * 4 threads, 8 cores > > Before: > Result: OK: 67418743(c67108212+d310530) usec, 5000000 (9000byte,0frags) > 74163pps 5339Mb/sec (5339736000bps) errors: 0 > + 2.98% ovs-vswitchd [k] copy_user_generic_string > + 2.49% ovs-vswitchd [k] memcpy > + 1.84% kpktgend_2 [k] memcpy > + 1.81% kpktgend_1 [k] memcpy > + 1.81% kpktgend_3 [k] memcpy > + 1.78% kpktgend_0 [k] memcpy > > After: > Result: OK: 24229690(c24127165+d102524) usec, 5000000 (9000byte,0frags) > 206358pps 14857Mb/sec (14857776000bps) errors: 0 > + 2.80% ovs-vswitchd [k] memcpy > + 1.31% kpktgend_2 [k] memcpy > + 1.23% kpktgend_0 [k] memcpy > + 1.09% kpktgend_1 [k] memcpy > + 1.04% kpktgend_3 [k] memcpy > + 0.96% ovs-vswitchd [k] copy_user_generic_string > > ----------------------------- > > > Thanks, > Yuxin > > -----????????----- > ??????: Ben Pfaff [mailto:b...@nicira.com] > ????????: 2013??12??4?? 13:28 > ??????: Zhuangyuxin > ????: discuss@openvswitch.org > ????: Re: [ovs-discuss] Method to verify openvswitch unicast netlink I/O > performance > > On Wed, Dec 04, 2013 at 02:41:36AM +0000, Zhuangyuxin wrote: > > I noticed there're some patch reviews these days on optimizing unicast > > netlink I/O performance and showed the performance result as blow. I'm > > wondering about the tools and method which we usually use to verify > > performance improvement on netlink IO. Can you help shed any light on > > this? > > I see you provided "before" results, but I don't see any "after" ones. > What were the "after" results? _______________________________________________ discuss mailing list discuss@openvswitch.org http://openvswitch.org/mailman/listinfo/discuss
