[openib-general] Re: openib-general Digest, Vol 22, Issue 114

[Shirley Ma]

Roland,

> I still don't understand why splitting the CQ allows you to use more
> than one CPU to handle completions.  Both CQ events get handled on the
> same CPU -- you just have more overhead in getting to the CQ event
> handlers if there are two of them.

The send WC handler is different with recv WC handler. Even with some
overhead we do see big improvement in bidirectional throughput.

Thanks
Shirley Ma
IBM Linux Technology Center
15300 SW Koll Parkway
Beaverton, OR 97006-6063
Phone(Fax): (503) 578-7638
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