lkml.org 
[lkml]   [2014]   [May]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] cpufreq: governor: Be friendly towards latency-sensitive bursty workloads
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



\
 
 \ /
  Last update: 2014-05-27 05:41    [W:0.142 / U:0.132 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site