[openib-general] Re: [PATCH 2/6] [RFC] mthca kernel changes for resizeCQ

[Roland Dreier]

    Michael> Might be a good idea to test err == -EAGAIN first: err is
    Michael> likely a register, and once you get a valid CQE returning
    Michael> it to ULP ASAP has direct latency impact.

Makes sense.  The x86_64 asm looks slightly better at least, so I put
this change in my tree.

    Michael> I agree, neither do I. Did you have a chance to profile
    Michael> this code?  Is there any performance impact on IPoIB?

I didn't profile but I didn't measure any performance delta on IPoIB.

 - R.