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SubjectRe: 3.9.0 + CONFIG_X86_INTEL_PSTATE=y -> ThinkPad T420 with i5 lost ACPI functionality
On 05/13/2013 12:13 PM, Toralf Förster wrote:
> 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 ?
>

cgexec from the libcgroup-tools package (fedora name) look like it will place
a process in a group for you.

https://wiki.archlinux.org/index.php/Cgroups

Has some useful examples.

--Dirk
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