[openib-general] [PATCH/RFC 1/2] IB: Return "maybe_missed_event" hint from ib_req_notify_cq()

Roland Dreier rdreier at cisco.com
Thu Oct 19 19:39:25 PDT 2006


 > I have applied this patch and updated patch 2/2. You will send out an
 > updated patch 2/2, I think.

Sorry, messed that up.  I just sent out the patch.

 > I did some extra modification in ipoib code, (which has more extra
 > repolls). I do see around 10% or more performance improvement now with this
 > change on both scaling and none scaling code. I will run oprofile tomorrow
 > to see the difference. I think with these extra repolls, the cpu
 > utilization would be much higher.

You mean you add more calls to ib_poll_cq()?  Where do you add them?
Why does it help?

 - R.




More information about the general mailing list