Re: [Lse-tech] [patch] sched-domain cleanups, sched-2.6.5-rc2-mm2-A3

Andi Kleen
2004-03-29T10:30:34Z

On Mon, 29 Mar 2004 02:20:58 -0800
Rick Lindsley <ricklind@us.ibm.com> wrote:

> I've got a web page up now on my home machine which shows data from
> schedstats across the various flavors of 2.6.4 and 2.6.5-rc2 under
> load from kernbench, SPECjbb, and SPECdet.
>
> http://eaglet.rain.com/rick/linux/sched-domain/index.html
>
> Two things that stand out are that sched-domains tends to call
> load_balance() less frequently when it is idle and more frequently when
> it is busy (as compared to the "standard" scheduler.) Another is that
> even though it moves fewer tasks on average, the sched-domains code shows
> about half of pull_task()'s work is coming from active_load_balance() ...
> and that seems wrong. Could these be contributing to what you're seeing?

Sounds quite possible yes.

-Andi