Messages in this thread | | | Date | Tue, 27 May 2014 08:45:52 +0530 | From | "Srivatsa S. Bhat" <> | Subject | Re: [PATCH] cpufreq: governor: Be friendly towards latency-sensitive bursty workloads |
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On 05/27/2014 04:57 AM, Rafael J. Wysocki wrote: > Hi Srivatsa, > > On Tuesday, May 27, 2014 02:23:38 AM Srivatsa S. Bhat wrote: >> Cpufreq governors like the ondemand governor calculate the load on the CPU >> periodically by employing deferrable timers. A deferrable timer won't fire >> if the CPU is completely idle (and there are no other timers to be run), in >> order to avoid unnecessary wakeups and thus save CPU power. >> >> However, the load calculation logic is agnostic to all this, and this can >> lead to the problem described below. > > This is subtle enough that I need some more time to chew on it, but since the > merge window is coming, I'm not sure when that's going to happen honestly. >
Sure, I completely understand. Please take your time, no hurry!
Thank you very much!
Regards, Srivatsa S. Bhat
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