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SubjectRe: sched_domains and Stream benchmark
Andi Kleen wrote:
>>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.
>

Now what is wrong with it? I thought you said it is OK
now that Ingo's balance-on-clone is implemented, and
that you also saw similar variation in results with
numasched?
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