[openib-general] Re: Re: calculate inline data size

[Michael S. Tsirkin]

Quoting r. Sean Hefty <sean.hefty at intel.com>:
> BTW, in tests that I've seen previously, using the largest possible inline data
> size didn't yield the best system performance, but that could have simply been
> based on the tests that we being run.

True. inline needs a data copy into the queue.
So for large buffers even though you save a s/g read, you lose 
latency and bandwidth by using inline unless you have a very fast
CPU.
The actual size depends on the CPU/memory.

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MST