Hi, Folks,
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?
Thanks,
Yuxin
P.S. this is the performance result I mentioned
--------
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
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