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
-----邮件原件-----
发件人: Ben Pfaff [mailto:b...@nicira.com]
发送时间: 2013年12月4日 13:28
收件人: Zhuangyuxin
抄送: discuss@openvswitch.org
主题: 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?
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