[openib-general] ip over ib throughtput

[Grant Grundler]

On Thu, Jan 13, 2005 at 04:29:02PM -0800, Roland Dreier wrote:
>     Grant> MTU size helps a bit.  Using 4k or larger gives me ~1590
>     Grant> Mbps vs ~1560 for 2k MTU.  But I don't see improvement for
>     Grant> larger MTUs.
> 
> I think the IPoIB will refuse to set an MTU above 2044 (since the HCA
> is not able to generate larger UD messages).

Sorry - "4k" was the netperf message size - not the MTU.
My bad for mixing that up.

thanks,
grant