[<prev] [next>] [<thread-prev] [day] [month] [year] [list]
Date: Sun, 07 Jul 2013 10:44:41 +0200
From: Toralf Förster <toralf.foerster@....de>
To: Dirk Brandewie <dirk.brandewie@...il.com>
CC: Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: 3.9.0 + CONFIG_X86_INTEL_PSTATE=y -> ThinkPad T420 with i5 lost
ACPI functionality
On 05/28/2013 08:11 PM, Toralf Förster wrote:
> 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
>>
What I'm looking for is a command telling the governor "do not increase
CPU frequency for this process (group)" - because that's the main
intention of "nice -19", right ?
Without such a simple-to-use-command/replacement-of-nice-19 a lot of
systems in the wild won't work as expected with the p-state driver in
place of acpi_cpufreq.
(And AFAICR this was one of those reasons why for ondemand the
"ignore_nice" sysfs feature was implemented)
Especially RedHat systems using the kernel-ml will automatically switch
to p-state - pretty sure, that's not wanted by a reasonable amount of
people, or ?
--
MfG/Sincerely
Toralf Förster
pgp finger print: 7B1A 07F4 EC82 0F90 D4C2 8936 872A E508 7DB6 9DA3
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists