Messages in this thread | | | Date | Thu, 11 Feb 2016 18:30:33 +0100 | From | Peter Zijlstra <> | Subject | Re: [PATCH 0/3] cpufreq: Replace timers with utilization update callbacks |
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On Thu, Feb 11, 2016 at 09:06:04AM -0800, Steve Muckle wrote: > Hi Peter, > > >> > I think additional hooks such as enqueue/dequeue would be needed in > >> > RT/DL.
That is what I reacted to mostly. Enqueue/dequeue hooks don't really make much sense for RT / DL.
> Rafael's changes aren't specifying particular frequencies/capacities in > the scheduler hooks. They're just pokes to get cpufreq to run, in order > to eliminate cpufreq's timers. > > My concern above is that pokes are guaranteed to keep occurring when > there is only RT or DL activity so nothing breaks.
The hook in their respective tick handler should ensure stuff is called sporadically and isn't stalled.
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