linux-kernel - Re: [RFC/RFT PATCH] sched: automated per tty task groups

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Date:	Thu, 21 Oct 2010 10:48:38 +0200
From:	Markus Trippelsdorf <markus@...ppelsdorf.de>
To:	Mike Galbraith <efault@....de>
Cc:	Ingo Molnar <mingo@...e.hu>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
Subject: Re: [RFC/RFT PATCH] sched: automated per tty task groups

On Thu, Oct 21, 2010 at 10:11:55AM +0200, Mike Galbraith wrote:
> On Wed, 2010-10-20 at 04:56 +0200, Ingo Molnar wrote:
> 
> > Mind doing more of the tty->desktop renames/generalizations as Linus suggested, and 
> > resend the patch?
> 
> Here she comes.  Better/Worse?
> 
> Changes:
> - tty->autogroup.
> - only autogroup fair class tasks.
> - removed dainbramaged sleeper vruntime twiddling.
> - removed paranoid locking.
> - removed noop detatch code.
> 
> > I'd also suggest to move it out of EXPERIMENTAL - we dont really do that for core 
> > kernel features as most distros enable CONFIG_EXPERIMENTAL so it's a rather 
> > meaningless distinction. Since the feature is default-n, people will get the old 
> > scheduler by default but can also choose this desktop-centric scheduling mode.
> > 
> > I'd even argue to make it default-y, because this patch clearly cures a form of 
> > kbuild cancer.
> 
> You top dogs can make the default call.. it it's accepted that is ;-)
> 
> Marcus:  care to try the below?  Works fine for me (but so did first
> cut).  It depends on the attached patch, and applied to virgin shiny new
> 2.6.36.

Works fine interactively, but I still get the same kernel BUG on reboot
time as before. Would a photo of the trace help you?

-- 
Markus
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