From: Jeremy Fitzhardinge <jeremy@goop.org>
To: "Pallipadi, Venkatesh" <venkatesh.pallipadi@intel.com>
Cc: Dave Jones <davej@redhat.com>,
pjones@redhat.com, cpufreq@lists.linux.org.uk
Subject: Re: ondemand vs suspend.
Date: Mon, 19 Jun 2006 15:52:59 -0700 [thread overview]
Message-ID: <44972ACB.2040609@goop.org> (raw)
In-Reply-To: <EB12A50964762B4D8111D55B764A8454110B16@scsmsx413.amr.corp.intel.com>
Pallipadi, Venkatesh wrote:
> Yes. I am able to reproduce this 2.6.17-rc6 and trying to narrow it
> down.
>
> Also, there is a known issue with ondemand and resuming anyway as the
> second CPU will not be able to resume with ondemand, but instead will go
> back to 'default' governor on initialization.
> So, even with this bug fixed, we cannot suspend-resume with ondemand
> governor. Workaround for now can be just to switch to default governor
> before suspend and go back to ondemand after resume, using initscripts.
>
I've noticed another problem, which may be related. Sometimes after
resume, cpufreq seems to lose the ability to control the CPU speeds:
they stay at the lowest performance level, and don't change regardless
of what governor I set. I'm seeing this on a T2400 Core Duo. I'm not
sure if this is a speedfreq-centrino problem or cpufreq itself.
J
next prev parent reply other threads:[~2006-06-19 22:52 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-06-14 2:50 ondemand vs suspend Pallipadi, Venkatesh
2006-06-14 3:08 ` Peter Jones
2006-06-19 22:52 ` Jeremy Fitzhardinge [this message]
2006-06-21 18:54 ` Venkatesh Pallipadi
2006-06-21 21:01 ` Jeremy Fitzhardinge
2006-06-23 22:45 ` Jeremy Fitzhardinge
2006-06-21 18:35 ` Venkatesh Pallipadi
-- strict thread matches above, loose matches on Subject: below --
2006-06-26 22:12 Pallipadi, Venkatesh
2006-06-28 22:20 ` Jeremy Fitzhardinge
2006-06-26 20:24 Pallipadi, Venkatesh
2006-06-26 20:58 ` Jeremy Fitzhardinge
2006-06-26 18:43 Pallipadi, Venkatesh
2006-06-26 19:23 ` Jeremy Fitzhardinge
2006-06-13 23:03 Pallipadi, Venkatesh
2006-06-13 23:06 ` Dave Jones
2006-06-13 20:53 Dave Jones
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