[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <20070829034214.GA30551@elte.hu>
Date: Wed, 29 Aug 2007 05:42:14 +0200
From: Ingo Molnar <mingo@...e.hu>
To: "Siddha, Suresh B" <suresh.b.siddha@...el.com>
Cc: nickpiggin@...oo.com.au, linux-kernel@...r.kernel.org,
akpm@...ux-foundation.org
Subject: Re: [patch] sched: fix broken smt/mc optimizations with CFS
* Siddha, Suresh B <suresh.b.siddha@...el.com> wrote:
> On Mon, Aug 27, 2007 at 12:31:03PM -0700, Siddha, Suresh B wrote:
> > Essentially I observed that nice 0 tasks still endup on two cores of same
> > package, with out getting spread out to two different packages. This behavior
> > is same with out this fix and this fix doesn't help in any way.
>
> Ingo, Appended patch seems to fix the issue and as far as I can test,
> seems ok to me.
thanks! I've queued your fix up for .23 merge. I've done a quick test
and it indeed seems to work well.
> This is a quick fix for .23. Peter Williams and myself plan to look at
> code cleanups in this area (HT/MC optimizations) post .23
>
> BTW, with this fix, do you want to retain the current FUZZ value?
what value would you suggest? I was thinking about using
busiest_rq->curr->load.weight instead, to always keep rotating tasks.
Ingo
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists