Messages in this thread | | | Date | Tue, 15 May 2012 22:00:42 +0530 | From | Vaidyanathan Srinivasan <> | Subject | Re: Plumbers: Tweaking scheduler policy micro-conf RFP |
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* Vincent Guittot <vincent.guittot@linaro.org> [2012-05-15 17:05:47]:
> On 15 May 2012 15:00, Peter Zijlstra <peterz@infradead.org> wrote: > > On Tue, 2012-05-15 at 14:57 +0200, Vincent Guittot wrote: > >> > >> Not sure that nobody cares but it's much more that scheduler, > >> load_balance and sched_mc are sensible enough that it's difficult to > >> ensure that a modification will not break everything for someone > >> else. > > > > Thing is, its already broken, there's nothing else to break :-) > > > > sched_mc is the only power-aware knob in the current scheduler. It's > far from being perfect but it seems to work on some ARM platform at > least. You mentioned at the scheduler mini-summit that we need a > cleaner replacement and everybody has agreed on that point. Is anybody > working on it yet ? and can we discuss at Plumber's what this > replacement would look like ?
Hi Vincent,
In the earlier discussion we listed down the cleanup requirements. I made a cleanup patch that unifies the sysfs interface as a first step.
[RFC PATCH v1 0/2] sched: unified sched_powersavings tunables http://thread.gmane.org/gmane.linux.kernel/1239750
I need to make this scheme generically work on different topology, which is the real problem that we need to solve.
--Vaidy
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