Messages in this thread | | | Subject | Re: ondemand cpufreq ineffective in 2.6.12 ? | From | Lee Revell <> | Date | Tue, 12 Jul 2005 10:57:23 -0400 |
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On Tue, 2005-07-12 at 21:52 +1000, Con Kolivas wrote: > > Well, it's just the default settings of the kernel which has changed. If > > you want the old behaviour, you can use (with your admin hat): > > echo 1 > /sys/devices/system/cpu/cpu0/cpufreq/ondemand/ignore_nice > > IMHO it seems quite fair, if you have a process nice'd to 10 it probably > > means you are not in a hurry. > > That's not necessarily true. Most people use 'nice' to have the cpu bound task > not affect their foreground applications, _not_ because they don't care how > long they take.
But the scheduler should do this on its own! If people are having to renice kernel compiles to maintain decent interactive performance (and yes, I have to do the same thing sometimes) the scheduler is BROKEN, period.
Lee
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