On 01/28/2014 01:14 AM, Qin Chuanyu wrote:
On 2014/1/28 16:34, Michael S. Tsirkin wrote:
Could you please check latency results?
netperf UDP_RR 512
test model: VM->host->host
modified before : 11108
modified after : 11480
3% gained by this patch
Netperf UDP_RR can be very sensitive to packet losses. Not that there
were necessarily any in your tests, but to further confirm the 3%
improvement in latency, I would suggest using the confidence intervals
functionality in your before/after netperf testing. And to get at what
Michael asks about CPU utilization I would suggest:
netperf -H <otherguy> -c -C -l 30 -i 30,3 -t UDP_RR -- -r 512
(I was guessing as to what netperf options you may have been using already)
happy benchmarking,
rick jones
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