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SubjectRe: [PATCH v4] sched: automated per session task groups
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On Tue, 2010-11-30 at 15:18 +0100, Ingo Molnar wrote:
> * Mike Galbraith <efault@gmx.de> wrote:
>
> > On Mon, 2010-11-29 at 20:20 +0100, Ingo Molnar wrote:
> > > * Mike Galbraith <efault@gmx.de> wrote:
> > >
> > > > > I know, from the testing so far we _thought_ it was fairly sane. Apparently
> > > > > there's still some work to do.
> > > >
> > > > Damn thing bisected to:
> > > >
> > > > commit 92fd4d4d67b945c0766416284d4ab236b31542c4
> > > > Merge: fe7de49 e53beac
> > > > Author: Ingo Molnar <mingo@elte.hu>
> > > > Date: Thu Nov 18 13:22:14 2010 +0100
> > > >
> > > > Merge commit 'v2.6.37-rc2' into sched/core
> > > >
> > > > Merge reason: Move to a .37-rc base.
> > > >
> > > > Signed-off-by: Ingo Molnar <mingo@elte.hu>
> > > >
> > > > 92fd4d4d67b945c0766416284d4ab236b31542c4 is the first bad commit
> > >
> > > Hm, i'd suggest to double check the two originator points:
> > >
> > > e53beac - is it really 'bad' ?
> > > fe7de49 - is it really 'good'?
> >
> > Nope. I did a bisection this morning in text mode with a pipe-test
> > based measurement proggy, and it bisected cleanly.
> >
> > 2069dd75c7d0f49355939e5586daf5a9ab216db7 is the first bad commit
> >
> > commit 2069dd75c7d0f49355939e5586daf5a9ab216db7
> > Author: Peter Zijlstra <a.p.zijlstra@chello.nl>
> > Date: Mon Nov 15 15:47:00 2010 -0800
> >
> > sched: Rewrite tg_shares_up)
>
> Ok. And has this fixed it:
>
> 822bc180a7f7: sched: Fix unregister_fair_sched_group()
>
> ... or are there two bugs?

Two bugs. 822bc180a7f7 fixes the explosions that were happening in tip.
The interactivity issue is some problem in the update_shares() stuff.

-Mike



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