2016-06-09 10:18 GMT+02:00 Christian Balzer <ch...@gol.com>:
> IPoIB is about half the speed of your IB layer, yes.

Ok, so it's normal. I've seen benchmarks on net stating that IPoIB on
DDR should reach about 16-17Gb/s
I'll plan to move to QDR

> And bandwidth is (usually) not the biggest issue, latency is.

I've never checked the latency that I had.
Even with IPoIB should be lower than 10GBASE-T

> Google for "Accelio Ceph".

Thanks.
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