Re: 3.9.0 + CONFIG_X86_INTEL_PSTATE=y -> ThinkPad T420 with i5 lostACPI functionality

From: Toralf FÃrster
Date: Mon May 13 2013 - 15:17:24 EST


On 05/13/2013 07:57 PM, Dirk Brandewie wrote:
> cd /sys/fs/cgroup/cpu
> mkdir bonic
> echo 400 > boinc/cpu.shares
> boinc &
> echo $! > boinc/tasks

In many places of my scripts for automated testing I use currently the
"nice -n" prefix at my ThinkPad to keep a long battery life, quiet fan,
cool CPU. The CPU just runs with minimal frequency but will give
med/max. power on demand.

If the P-State governor will be the replacement the old behaviour -

the kernel menu config says "will become the perferred ... (sic!)
...scaling driver for Sandy bridge processors" -

is there a nifty user space tool which replaces "nice" and do all cgroup
stuff for the user ?

--
MfG/Sincerely
Toralf FÃrster
pgp finger print: 7B1A 07F4 EC82 0F90 D4C2 8936 872A E508 7DB6 9DA3
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