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

[Roland Dreier]

    Shirley> It helps the performance about 10% for the touch
    Shirley> netperf/netserver test, then hit driver errors. I notice
    Shirley> that the send is faster than before. Let me send you the
    Shirley> patch tomorrow, maybe you have the hints to identify the
    Shirley> problem.

Without seeing the patch I'm going to guess that your speedup is
coming by breaking the accounting of free space in the send queue, and
so you run into problems when the queue fills up.

 - R.