Re: Epic regression in throughput since v2.6.23

From: Ingo Molnar
Date: Wed Sep 09 2009 - 11:52:40 EST



* Serge Belyshev <belyshev@xxxxxxxxxxxxxxxxx> wrote:

> Serge Belyshev <belyshev@xxxxxxxxxxxxxxxxx> writes:
> >[snip]
>
> I've updated the graphs, added kernels 2.6.24..2.6.29:
> http://img186.imageshack.us/img186/7029/epicmakej4.png
>
> And added comparison with best-performing 2.6.23 kernel:
> http://img34.imageshack.us/img34/7563/epicbfstips.png

Thanks!

I think we found the reason for that regression - would you mind
to re-test with latest -tip, e157986 or later?

If that works for you i'll describe our theory.

Ingo
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