linux-kernel - Re: 3.9.0 + CONFIG_X86_INTEL_PSTATE=y -> ThinkPad T420 with i5 lost ACPI functionality

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Message-ID: <51913B45.80901@gmx.de>
Date:	Mon, 13 May 2013 21:13:09 +0200
From:	Toralf Förster <toralf.foerster@....de>
To:	Dirk Brandewie <dirk.brandewie@...il.com>
CC:	"Rafael J. Wysocki" <rjw@...k.pl>, linux-acpi@...r.kernel.org,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	Linux PM list <linux-pm@...r.kernel.org>
Subject: Re: 3.9.0 + CONFIG_X86_INTEL_PSTATE=y  -> ThinkPad T420 with i5 lost
 ACPI functionality

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 Förster
pgp finger print: 7B1A 07F4 EC82 0F90 D4C2 8936 872A E508 7DB6 9DA3
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