Messages in this thread | | | Date | Tue, 15 May 2012 20:13:45 +0200 | Subject | Re: Plumbers: Tweaking scheduler policy micro-conf RFP | From | Vincent Guittot <> |
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On 15 May 2012 18:30, Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com> wrote: > * 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.
Hi Vaidy
Your cleanup patch should not impact current ARM platform. IIUC, you have merged sched_mc and sched_smt interface and there is no ARM platform with SMT yet
Regards, Vincent > > --Vaidy > > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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