Re: [intel_pstate] fcb6a15c: -34.4% aim7 jobs-per-min and -17.0%will-it-scale/page_fault1 Pkg_W

[Dirk Brandewie]

On 02/07/2014 04:33 AM, Fengguang Wu wrote:
> Hi Dirk,
>
> FYI, we notice dropped power and performance numbers on commit
> fcb6a15c2e7e76d493e6f91ea889ab40e1c643a4 ("intel_pstate: Take core C0
> time into account for core busy calculation").
>
>
>        v3.14-rc1  fcb6a15c2e7e76d493e6f91ea
> ---------------  -------------------------
>        6.53 ~ 4%     -12.0%       5.75 ~ 2%  lkp-sb03/micro/netperf/120s-200%-SCTP_STREAM
>      147.93 ~ 0%     -23.3%     113.40 ~ 0%  lkp-sbx04/micro/will-it-scale/page_fault1
>      154.46 ~ 0%     -22.9%     119.15 ~ 0%  TOTAL turbostat.Cor_W
>
>        v3.14-rc1  fcb6a15c2e7e76d493e6f91ea
> ---------------  -------------------------
>         203 ~ 0%     -17.0%        169 ~ 0%  lkp-sbx04/micro/will-it-scale/page_fault1
>         203 ~ 0%     -17.0%        169 ~ 0%  TOTAL turbostat.Pkg_W

These two tests show an improvement in power :-)

>        v3.14-rc1  fcb6a15c2e7e76d493e6f91ea
> ---------------  -------------------------
>      572540 ~ 1%     -30.2%     399351 ~ 1%  grantley/micro/aim7/disk_src
>      317151 ~ 1%     -42.0%     183863 ~ 0%  grantley/micro/aim7/shell_rtns_1
>      889692 ~ 1%     -34.4%     583214 ~ 1%  TOTAL aim7.2000.jobs-per-min

I am investigating where the aim benchmark went south.



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