From: Andreas Dilger <adilger@clusterfs.com>
To: Lee Revell <rlrevell@joe-job.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Robert Love <rml@novell.com>
Subject: Re: How is user space notified of CPU speed changes?
Date: Fri, 22 Oct 2004 12:57:50 -0600 [thread overview]
Message-ID: <20041022185750.GT26297@schnapps.adilger.int> (raw)
In-Reply-To: <1098468316.5580.18.camel@krustophenia.net>
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On Oct 22, 2004 14:05 -0400, Lee Revell wrote:
> On Fri, 2004-10-22 at 07:23, Alan Cox wrote:
> > No it did not. It has never been a safe assumption. Even my old PC110
> > does APM non-linux assisted shifts between 8 16 and 33Mhz. In addition
> > there are boxes with dual CPU's and different multipliers - dual
> > 300/450's were not uncommon.
> >
> > And thats before we even mention such things at hyped-threading.
>
> Seems like you are implying that any userspace app that needs to know
> the CPU speed is broken. Is this correct?
Sadly, if I boot my laptop on battery and then plug it in, all of my
MP3s run twice (or whatever) as fast (XMMS on 2.4), making them sound like
the Chipmunks on crack. I have to reboot my system while plugged in
to listen to music.
Cheers, Andreas
--
Andreas Dilger
http://sourceforge.net/projects/ext2resize/
http://members.shaw.ca/adilger/ http://members.shaw.ca/golinux/
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next prev parent reply other threads:[~2004-10-22 18:59 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-10-21 23:01 Lee Revell
2004-10-22 11:23 ` Alan Cox
2004-10-22 14:12 ` Con Kolivas
2004-10-22 18:05 ` Lee Revell
2004-10-22 18:57 ` Andreas Dilger [this message]
2004-10-22 19:40 ` Chris Friesen
2004-10-22 19:46 ` Lee Revell
2004-10-22 20:28 ` Alan Cox
2004-10-22 21:46 ` Chris Friesen
2004-10-22 23:25 ` Lee Revell
2004-10-25 15:28 ` Chris Friesen
2004-10-23 5:10 ` Lee Revell
2004-10-23 10:53 ` Matthew Garrett
2004-10-23 21:19 ` Alan Cox
2004-10-23 22:42 ` Lee Revell
2004-10-23 23:17 ` Jon Masters
2004-10-24 1:40 ` Lee Revell
2004-10-24 14:02 ` Alan Cox
2004-10-26 2:38 ` Lee Revell
2004-10-26 4:05 ` Lee Revell
2004-10-23 23:35 ` Jon Masters
2004-10-23 23:36 ` Jon Masters
2004-10-24 14:04 ` Alan Cox
2004-10-25 5:53 ` Joel Becker
2004-10-24 20:02 ` Robert Love
[not found] <1098399709.4131.23.camel@krustophenia.net.suse.lists.linux.kernel>
[not found] ` <1098444170.19459.7.camel@localhost.localdomain.suse.lists.linux.kernel>
[not found] ` <1098508238.13176.17.camel@krustophenia.net.suse.lists.linux.kernel>
[not found] ` <1098566366.24804.8.camel@localhost.localdomain.suse.lists.linux.kernel>
2004-10-23 23:54 ` Andi Kleen
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