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

From: Markus Trippelsdorf
Date: Thu Oct 21 2010 - 04:48:59 EST


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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