From: "Toralf Förster" <toralf.foerster@gmx.de>
To: vatsa@linux.vnet.ibm.com
Cc: Tomasz Chmielewski <mangoo@wpkg.org>,
linux-kernel@vger.kernel.org, Ingo Molnar <mingo@elte.hu>,
a.p.zijlstra@chello.nl, dhaval@linux.vnet.ibm.com
Subject: Re: (ondemand) CPU governor regression between 2.6.23 and 2.6.24
Date: Sun, 27 Jan 2008 17:57:05 +0100 [thread overview]
Message-ID: <200801271757.07743.toralf.foerster@gmx.de> (raw)
In-Reply-To: <20080127165400.GB1044@linux.vnet.ibm.com>
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At Sunday 27 January 2008 Srivatsa Vaddagiri wrote :
> You can set that to 0 to ask ondemand gov to include nice load into
> account while calculating cpu freq changes:
>
> # echo 0 > /sys/devices/system/cpu/cpu0/cpufreq/ondemand/ignore_nice_load
>
> This should restore the behavior of ondemand governor as seen in 2.6.23
> in your case (even with CONFIG_FAIR_GROUP_SCHED enabled). Can you pls confirm
> if that happens?
Yes, of course, unfortunately this speeds up the CPU up to max power consumption
which isn't wanted at least at a notebook b/c temperature and fan speed are at
maximum in that case :-(
It would be nice to run a grid application at lowest priority without impact to
power / fan / temperature but OTOH have full performance for desktop
applications, isn't it ?
--
MfG/Sincerely
Toralf Förster
pgp finger print: 7B1A 07F4 EC82 0F90 D4C2 8936 872A E508 7DB6 9DA3
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next prev parent reply other threads:[~2008-01-27 16:57 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-26 17:11 Tomasz Chmielewski
2008-01-26 18:46 ` Toralf Förster
2008-01-27 14:46 ` Srivatsa Vaddagiri
2008-01-27 15:06 ` Toralf Förster
2008-01-27 16:54 ` Srivatsa Vaddagiri
2008-01-27 16:57 ` Toralf Förster [this message]
2008-01-27 21:27 ` Peter Zijlstra
2008-01-27 22:32 ` Ingo Molnar
2008-01-28 8:38 ` Helge Hafting
2008-01-26 21:38 ` Toralf Förster
2008-01-26 21:45 ` Sam Ravnborg
[not found] ` <200801271200.04971.toralf.foerster@gmx.de>
[not found] ` <1201433167.22060.10.camel@homer.simson.net>
2008-01-27 12:39 ` Toralf Förster
2008-01-27 18:58 ` Mike Galbraith
2008-01-27 21:14 ` Toralf Förster
2008-01-27 21:25 ` Peter Zijlstra
2008-01-28 13:18 ` Ingo Molnar
2008-01-28 15:16 ` Toralf Förster
-- strict thread matches above, loose matches on Subject: below --
2008-01-26 14:06 Toralf Förster
2008-02-04 0:32 ` Andrew Morton
2008-02-04 0:36 ` Andrew Morton
2008-02-04 17:44 ` Pallipadi, Venkatesh
2008-02-04 19:18 ` Toralf Förster
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