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SubjectRe: [PATCH] sched: smart wake-affine
On 07/05/2013 01:41 PM, Mike Galbraith wrote:
[snip]
>>
>> Have you tried to use more loops and groups? will that show even bigger
>> regressions?
>
> Nope, less on either side.
>
> hackbench -g 100 -l 1000
> avg
> 3.10.0-regress 21.895 21.564 21.777 21.958 22.093 21.857 1.000
> 3.10.0-regressx 22.844 23.268 23.056 23.231 22.375 22.954 1.050
>
> hackbench -g 1 -l 100000
> avg
> 3.10.0-regress 29.913 29.711 30.395 30.213 30.236 30.093 1.000
> 3.10.0-regressx 30.392 31.003 30.728 31.008 30.389 30.704 1.020

Hmm...I'm not expecting to reserve all of the 15%, but this still seems
a little bit more...

PeterZ has suggested some optimization which I sent out yesterday, I
suppose they haven't been included into this test yet, correct?

Since currently I could not reproduce the issue on my box with that
patch, I suppose it may solved that issue ;-)

Regards,
Michael Wang

>
>> BTW, is this the results of 10 group and 40 sockets == 400 tasks?
>
> Yeah, stock.
>
> Off to do some body/mind tuning. Bavarian mushrooms don't hide as well
> as memory access thingies.. and I can still out run 'em.
>
> -Mike
>
>
>
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