From: Thomas Renninger <trenn@suse.de>
To: Corentin Chary <corentin.chary@gmail.com>
Cc: linux-pm@lists.linux-foundation.org, discuss@lesswatts.org,
cpufreq@vger.kernel.org
Subject: Re: [ANNOUNCE] cpupowerutils - cpufrequtils extended with quite some features
Date: Sat, 12 Mar 2011 00:53:53 +0100 [thread overview]
Message-ID: <201103120053.53565.trenn@suse.de> (raw)
In-Reply-To: <AANLkTimFg+uYGbSi=Ci-+_e89TgLkyMB7PAJcnt7mzTc@mail.gmail.com>
Hi,
I excluded some people/lists...
On Friday, March 11, 2011 04:56:01 PM Corentin Chary wrote:
...
> > The tool should compile and work on as much architectures as
> > possible.
>
> Hi Thomas,
> Do you think handling really vendor specific "boosts" like EeePC's SHE
> is in cpupower scope ?
Not really.
> Still, it would not solve the issue of setting SHE mode in a standard
> way, or associating it with a governor.
I am not familiar with this stuff.
This is an oem/vendor specific way to modify the front-side-bus
throughput on (Intel atom only?) eeepc like machines (acer, asus and
others?)?
You could try to experiment with registering your own delayed work queue
in eeepc-laptopc.c and try to find best tunings and fittings for such
requirements.
If it works out and/or other xy-laptop.c or whatever drivers provide
similar functionality it could get moved up into a more generic
framework. A separate one next to cpuidle and cpufreq, for example
fsb_mod?
-> then cpupower should get enhanced to show its statistics, provide
easy knobs to tune things and provide a manpage what this is all
about...
Thomas
PS: Wouldn't the cpufreq subsystem suffice to register for this
SHE thing?
Could it be that SHE and real CPU freq (speedstep) is mutual exclusive?
Is the only problem that p4_clockmod cannot be loaded then?
I know it's needed to "unlock" certain eeepcs, but this not typical?
Are there any statistics how much p4_clockmod saves power on such
machines?
Thomas
next prev parent reply other threads:[~2011-03-11 23:53 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-11 11:46 [ANNOUNCE] cpupowerutils - cpufrequtils extended with quite some features Thomas Renninger
2011-03-11 15:56 ` Corentin Chary
2011-03-11 23:53 ` Thomas Renninger [this message]
2011-03-12 9:59 ` Corentin Chary
2011-03-12 0:18 ` Thomas Renninger
2011-03-12 4:34 ` Yong Zhang
2011-03-12 4:40 ` Yong Zhang
2011-03-23 10:29 ` Thomas Renninger
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