From: Andi Kleen <freitag@alancoxonachip.com>
To: alan@lxorguk.ukuu.org.uk, linux-kernel@vger.kernel.org
Subject: Re: VCool - cool your Athlon/Duron during idle
Date: 27 Aug 2001 08:55:51 +0200 [thread overview]
Message-ID: <oupk7zqkn48.fsf@pigdrop.muc.suse.de> (raw)
In-Reply-To: <87pu9i7frm.fsf@psyche.kn-bremen.de.suse.lists.linux.kernel> <E15b6Rz-0002hM-00@the-village.bc.nu.suse.lists.linux.kernel>
In-Reply-To: Alan Cox's message of "26 Aug 2001 22:27:56 +0200"
Alan Cox <alan@lxorguk.ukuu.org.uk> writes:
> Streaming video is not really different to most bus mastering IDE. Its
> just pci card initiated memory writes with timing constraints. For some
> reason having my disk do that makes me very nervous
The bus shutdown is clearly something which shouldn't be done in the normal
idle loop, but only when explicit sleep mode is requested and when the
kernel makes sure that all IO is quiescied [similar to what the sleep code
on the ppc/mac port does; see e.g.
drivers/macintosh/via-pmu.c:powerbook_sleep_G3]. Such a thing could be
e.g. controlled from apmd.
-Andi
next parent reply other threads:[~2001-08-27 6:56 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <87pu9i7frm.fsf@psyche.kn-bremen.de.suse.lists.linux.kernel>
[not found] ` <E15b6Rz-0002hM-00@the-village.bc.nu.suse.lists.linux.kernel>
2001-08-27 6:55 ` Andi Kleen [this message]
2001-08-27 20:57 VCool - cool your Athlon/Duron during idle Grover, Andrew
-- strict thread matches above, loose matches on Subject: below --
2001-08-27 9:26 Grover, Andrew
2001-08-27 9:53 ` Jan Niehusmann
2001-08-27 11:48 ` Liakakis Kostas
2001-08-27 15:03 ` Kurt Roeckx
2001-08-27 18:23 ` Liakakis Kostas
2001-08-27 20:56 ` Paul G. Allen
2001-08-27 10:42 ` Alan Cox
2001-08-27 12:16 ` Dieter Nützel
2001-08-27 20:17 ` Paul G. Allen
2001-09-02 22:28 ` Jan Niehusmann
[not found] <87pu9i7frm.fsf@psyche.kn-bremen.de>
2001-08-26 20:24 ` Alan Cox
2001-08-26 18:09 Dieter Nützel
2001-08-26 19:24 ` Alan Cox
2001-08-26 20:00 ` Lehmann
2001-08-26 22:40 ` Andreas Bombe
2001-08-26 20:25 ` Dieter Nützel
2001-08-26 23:00 ` Jan Niehusmann
2001-08-27 22:46 ` Pavel Machek
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