Re: [git pull] scheduler fixes

[Mike Galbraith]

On Sat, 2009-01-17 at 17:01 +0100, Ingo Molnar wrote:
> * Mike Galbraith <efault@xxxxxx> wrote:
> 
> > On Sat, 2009-01-17 at 04:43 -0800, Andrew Morton wrote:
> > > http://bugzilla.kernel.org/show_bug.cgi?id=12465 just popped up - another
> > > scheduler regression.  It has been bisected.
> > 
> > Seems pretty clear.  I'd suggest reverting it.
> 
> We can revert it (and will revert it if no solution is found), but i'd 
> also like to understand why it happens, because that kind of regression 
> from this change is unexpected - we might be hiding some bug that could 
> pop up under less debuggable circumstances, so we need to understand it 
> while we have a chance.

Agree.  However, with the sched_mc stuff, mysql+oltp now does better
with NEWIDLE on than off as well, as does an nfs kbuild.

	-Mike

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