Hi List, I was wondering if anyone here has looked at the performance characteristics of lustre OSSes on dual tylersburg motherboards with raid controllers split up onto separate IO hubs. I imagine that without proper pinning of service threads to the right CPUs/IOH and memory pools this could cause some nasty QPI contention. Is this actually a problem in practice? Is it possible to pin service threads in a reasonable way based on which OST is involved? Anyone doing this on purpose to try and gain more overall PCIE bandwidth?
I imagine that in general it's probably best to stick with a single socket single IOH OSS. No pinning to worry about, very direct QPI setup, consistent performance characteristics, etc. Thanks, Mark _______________________________________________ Lustre-discuss mailing list [email protected] http://lists.lustre.org/mailman/listinfo/lustre-discuss
