Re: IPoIB performance
From: Atchley, Scott <hidden>
Date: 2012-09-05 19:48:33
On Sep 5, 2012, at 3:06 PM, Christoph Lameter wrote:
On Wed, 5 Sep 2012, Atchley, Scott wrote:quoted
quoted
AFAICT the network stack is useful up to 1Gbps and after that more and more band-aid comes into play.Hmm, many 10G Ethernet NICs can reach line rate. I have not yet tested any 40G Ethernet NICs, but I hope that they will get close to line rate. If not, what is the point? ;-)Oh yes they can under restricted circumstances. Large packets, multiple cores etc. With the band-aids….
With Myricom 10G NICs, for example, you just need one core and it can do line rate with 1500 byte MTU. Do you count the stateless offloads as band-aids? Or something else? I have not tested any 40G NICs yet, but I imagine that one core will not be enough. Thanks, Scott-- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html