[openib-general] Re: Re: [PATCH 07/16] ehca: interrupt handling routines

[Michael S. Tsirkin]

Quoting r. Shirley Ma <xma at us.ibm.com>:
> No, CPU utilization wasn't reduced. When you use single CQ, NAPI polls on both RX/TX.

I think NAPI's point is to reduce the interrupt rate.
Wouldn't this reduce CPU load?

> netperf, iperf, mpstat, netpipe, oprofiling, what's your suggestion?

netperf has -C which gives CPU load, which is handy.
Running vmstat in another window also works reasoably well.

-- 
MST