Roland Dreier <[EMAIL PROTECTED]> wrote on 04/18/2006 02:49:34 PM:
> Shirley> The patch allows you tuning send/recv NUM_WC per poll and
> Shirley> add some cycles before polling to sync with the hardware.
>
> I have no problem increasing NUM_WC to something much bigger. What do
> you mean by "add some cycles before polling"?
>
> - R.
After completion handler receives the notification, don't poll the CQ right away,
and wait for more WIKIs in CQ. That way can reduce the CQ lock overhead.
I found that there is some problem to increase the NUM_WC on recv. It hurts the
performance lots. Do you have any clue?
Thanks
Shirley Ma
IBM Linux Technology Center
15300 SW Koll Parkway
Beaverton, OR 97006-6063
Phone(Fax): (503) 578-7638
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