On Wed, 30 Mar 2011 12:00:04 -0400 David Dillow <[email protected]> wrote:
> While it is true both are full duplex, there are also setup messages > flowing in both directions to set up the large transfers. In the past, > we've certainly seen problems at scale with small messages getting > blocked behind large bulk traffic on LNET. It would be interesting to > see how much self-interference is generated when running storage over > the same HCA as LNET, versus having them on separate NICs -- especially i kind of gather that if your clients are doing a mix of i/o (reads and writes) that this is going to happen regardless. two hcas/ports get a sort of parallelism to help alleviate some of this congestion. but a faster port (say 40G) would just as helpful? _______________________________________________ Lustre-discuss mailing list [email protected] http://lists.lustre.org/mailman/listinfo/lustre-discuss
