linux-kernel - Re: [git pull] scheduler changes for v2.6.26

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Message-ID: <20080421123903.GE9554@elte.hu>
Date:	Mon, 21 Apr 2008 14:39:03 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Frans Pop <elendil@...net.nl>
Cc:	torvalds@...ux-foundation.org, linux-kernel@...r.kernel.org,
	akpm@...ux-foundation.org
Subject: Re: [git pull] scheduler changes for v2.6.26


* Frans Pop <elendil@...net.nl> wrote:

> Ingo Molnar wrote:
> > Ingo Molnar (12):
> >       sched: re-do "sched: fix fair sleepers"
> 
> Has the regression [1] that was traced to this change been fixed now?
> 
> The regression was confirmed to be also present in sched-devel.git at 
> the time of -rc8, so I'd expect it still to be valid unless of course 
> the cause was found since then.

Peter reported a similar interactivity problem to be gone, so lets 
re-try this again - the change makes sense and if you see problems it's 
hiding something we really want to fix. It would be nice if you could 
try sched-devel/latest because it has an improved ftrace "sched_switch" 
tracer where you can generate much longer traces of this incident. Try 
the new /debug/trace_entries runtime tunable.

	Ingo
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