Some stuff came up and I was unable to focus on this bug for a while,
but it's gone as of 2.6.26. Performance is comparable to 2.6.23 once
again, maybe a bit better in places.
On Mon, 21 Apr 2008 17:53:42 +0200, "Ingo Molnar" <[email protected]> said:
>
> * Kai <[email protected]> wrote:
>
> > I did, however, test it on 2.6.25-rc8, and attached is the output of
> > cfs-debug-info.sh
>
> your vmstat:
>
> -- vmstat:
> --procs -----------memory---------- ---swap-- -----io---- -system--
> ----cpu----
> r b swpd free buff cache si so bi bo in cs us sy
> id wa
> 3 0 0 870540 340 746184 0 0 952 137 198 4752 21 12
> 60 7
> 1 0 0 870952 340 746320 0 0 128 0 356 17723 28 23
> 50 0
> 1 0 0 872224 340 746320 0 0 0 21 394 18066 30 20
> 50 0
> 1 0 0 872244 340 746320 0 0 0 0 353 17987 29 22
> 50 0
> 1 0 0 871416 340 746320 0 0 0 0 392 17971 28 22
> 50 0
>
> suggests that there's a constant 50% idle time. Probably one core
> running X and the client, the other core staying idle?
>
> Ingo