Re: [PATCH] sched: smart wake-affine

From: Michael Wang
Date: Mon Jul 08 2013 - 22:31:00 EST


Hi, Davidlohr

Thanks for the testing :)

On 07/09/2013 02:59 AM, Davidlohr Bueso wrote:
[snip]
>>
>> OK, I'll apply the patches, we'll see what happens. If there significant
>> fallout we'll immediately have more information anyway ;-)
>
> So I gave the v2 a spin on my aim7 benchmark on an 80-core 8 socket
> DL980. Not much changed, most numbers are in the noise range, however,
> with HT off, the high_systime workload suffered in throughput with this
> patch with higher concurrency (after 600 users). Image attached.

To make sure I'm not on the wrong way... HT here means hyperthreading,
correct?

I have some questions like:
1. how do you disable the hyperthreading? by manual or some other way?
2. is the 3.10-rc5 in image also disabled the hyperthreading?
3. is the v3 patch set show the same issue?

Regards,
Michael Wang

>
> Thanks,
> Davidlohr
>

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