Re: sched_domains and Stream benchmark

[Andi Kleen]

> I noticed your binary ran with N=2000000 which is only sufficient for a
> 2 proc 1 MB cache opteron box according to the documentation on the

It does not seem to make any difference. 

> stream faq.  I also noticed wide variation in results (25% or so) when
> running with 4 threads on a 4 proc opteron on linux-2.6.5-mm5.  Can you
> provide me with the specs of the system you ran your tests on?

Yes, mm5 is still broken because it has the "tuned to numasaurus" numa
scheduler. Run it on a standard (non mm*) kernel or with Ingo's early 
load balance patch.

-Andi
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/