Re: [PATCH V2 1/3] x86,idle: Quickly notice prediction failure for repeat mode

2012-09-17 Thread Youquan Song
> Could I convince you to try out my variation on > detect_repeating_intervals? :) > > http://people.redhat.com/riel/cstate/cstate-stddev-converge.patch > > I suspect that small change might help your code adapt to changed > conditions even faster. Yes. of course. your patch of cstate-stddev-conve

Re: [PATCH V2 1/3] x86,idle: Quickly notice prediction failure for repeat mode

2012-09-17 Thread Rik van Riel
On 09/17/2012 09:53 PM, Youquan Song wrote: The prediction for future is difficult and when the cpuidle governor prediction fails and govenor possibly choose the shallower C-state than it should. How to quickly notice and find the failure becomes important for power saving. cpuidle menu governor

[PATCH V2 1/3] x86,idle: Quickly notice prediction failure for repeat mode

2012-09-17 Thread Youquan Song
The prediction for future is difficult and when the cpuidle governor prediction fails and govenor possibly choose the shallower C-state than it should. How to quickly notice and find the failure becomes important for power saving. cpuidle menu governor has a method to predict the repeat patt