Messages in this thread | | | Date | Fri, 11 Jul 2014 18:57:10 +0200 | From | Pavel Machek <> | Subject | Re: [PATCH 2/2] cpufreq: ondemand: Eliminate the deadband effect |
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Hi!
> Tested on Intel i7-3770 CPU @ 3.40GHz and on ARM quad core 1500MHz Krait > (Android smartphone). > Benchmarks on Intel i7 shows a performance improvement on low and medium > work loads with lower power consumption. Specifics: > > Phoronix Linux Kernel Compilation 3.1: > Time: -0.40%, energy: -0.07% > Phoronix Apache: > Time: -4.98%, energy: -2.35% > Phoronix FFMPEG: > Time: -6.29%, energy: -4.02%
Hmm. Intel i7 should be race-to-idle machine. So basically rule like if (load > 0) go to max frequency else go to lowest frequency would do the right thing in your test, right?
So... should we do that, or do we need better benchmark? Pavel
-- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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