[openib-general] Re: Re: [PATCH] IPoIB splitting CQ, increase both send/recv poll NUM_WC & interval

[Michael S. Tsirkin]

Quoting r. Shirley Ma <xma at us.ibm.com>:
> So far work queue gives very consistent 15% througput increase in my
> local test with one dual core cpu over mthca.

What happens to the CPU utilization? And latency?

> I am planning to add one more cpu to see the difference.

And what happens on UP?

> Yes, NAPI is in our plan. We can see NAPI vs. work queue results soon.
> Actualy if we can combine work queue with NAPI, that would be more
> interesting.

Theoretically NAPI might make workqueues unnecessary. We shall see.

-- 
MST