Re: Major regression on hackbench with SLUB (more numbers)

[Pekka Enberg]

Hi,

On Dec 22, 2007 1:17 AM, Ingo Molnar <mingo@xxxxxxx> wrote:
> yep, and i ran a quick comparison test on a 2-core box with 3 kernels:
>
>   [ best of 5 runs in a row which had a relative jitter of less than 10% ]
>
>      MIN      v2.6.24.slab     v2.6.24.slub v2.6.24.slub.fix
>   ----------------------------------------------------------
>            mmap:    429.00    402.00 ( -6%)    385.00 (-10%)
>          select:     11.38     10.46 ( -8%)     11.41 (  0%)
>       proc-exec:    121.52    116.77 ( -3%)    120.77 (  0%)
>       proc-fork:    106.84    106.19 (  0%)    107.92 (  1%)
>    syscall-open:      3.09      3.13 (  1%)      3.25 (  4%)
>    hackbench-50:      2.85      3.47 ( 21%)      2.88 (  1%)
>
> and the regression seems to be largely fixed! Not only is the hackbench
> one fixed, but mmap shows an above-noise improvement as well.
>
> Acked-by: Ingo Molnar <mingo@xxxxxxx>

I thought it might be a bug but couldn't figure it out. The patch
looks good to me too, Christoph.

Reviewed-by: Pekka Enberg <penberg@xxxxxxxxxxxxxx>

On Dec 22, 2007 1:17 AM, Ingo Molnar <mingo@xxxxxxx> wrote:
> And i hereby nominate Pekka as SLUB/SLAB co-maintainer and spokesperson
> ;-)

Heh, thanks, but grep me from MAINTAINERS some day, Ingo :-).

                                Pekka
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