>
> As you can see it in the graph, v2.6.23 schedules much more consistently
> too. [ v2.6.22 has a small (but potentially statistically insignificant)
> edge at 4-6 clients, and CFS has a slightly better peak (which is
> statistically insignificant). ]
>
> ( Config is at
http://redhat.com/~mingo/misc/config, system is Core2Duo
> 1.83 GHz, mysql-5.0.45, glibc-2.6. Nothing fancy either in the config
> nor in the setup - everything is pretty close to the defaults. )
>
> i'm aware of a 2.6.21 vs. 2.6.23 sysbench regression report, and it
> apparently got resolved after various changes to the test environment:
>
>
http://jeffr-tech.livejournal.com/10103.html
>
> " [<CFS>] has virtually no dropoff and performs better under load than
> the default 2.6.21 scheduler. " (paraphrased)
>
> (The new link you posted, just a few hours after the release of v2.6.23,
> has not been reported to lkml before AFAICS - when did you become aware
> of it? If you learned about it before v2.6.23 it might have been useful
> to report it to the v2.6.23 regression list.)