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From: Matthew Garrett <mjg59@srcf.ucam.org>
To: Thomas Renninger <trenn@suse.de>
Cc: Dave Jones <davej@codemonkey.org.uk>,
	Dmitry Torokhov <dmitry.torokhov@gmail.com>,
	mzahor@dtech.sk, Dominik Brodowski <linux@dominikbrodowski.net>,
	cpufreq <cpufreq@lists.linux.org.uk>
Subject: Re: [PATCH] Remove p4_clockmode driver
Date: Mon, 26 May 2008 13:05:07 +0100	[thread overview]
Message-ID: <20080526120507.GA23310@srcf.ucam.org> (raw)
In-Reply-To: <1211729971.3422.52.camel@linux-2bdv.site>

On Sun, May 25, 2008 at 05:39:31PM +0200, Thomas Renninger wrote:

> Could you explain this in two easy sentences again, why this should not
> use the throttling interface?

Because it involves rewriting code for purely aesthetic benefit. I agree 
that, in an ideal world, p4-clockmod would integrate into the throttling 
system. But unless someone wants to rewrite it, that doesn't look 
likely...

> (former /proc/acpi/processor/*/throttling, now somewhere located in
> sysfs. Also used for passive cooling if no cpufreq is available).
> Throttling is what this driver is doing and with which it will interfere
> and slow down the machine to be closed to unresponsive if both
> (throttling and cpufreq interface) are using it?

The ACPI throttling interface will only be used if the minimum cpufreq 
state has already been reached. Users really shouldn't play with the 
throttling interface themselves, given its lack of useful functionality.

-- 
Matthew Garrett | mjg59@srcf.ucam.org

  reply	other threads:[~2008-05-26 12:05 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-05-03 19:47 [PATCH] Remove p4_clockmode driver Thomas Renninger
2008-05-11 16:19 ` Dave Jones
2008-05-15 10:55   ` Dominik Brodowski
2008-05-16 18:32   ` Pallipadi, Venkatesh
2008-05-22  4:01   ` Dmitry Torokhov
2008-05-23 11:21     ` Thomas Renninger
2008-05-23 12:55       ` Dmitry Torokhov
2008-05-23 15:19         ` Thomas Renninger
2008-05-23 15:54           ` Dmitry Torokhov
2008-05-23 16:16             ` Thomas Renninger
2008-05-23 17:40               ` Dmitry Torokhov
2008-05-24 11:03                 ` Dominik Brodowski
2008-05-25 15:39                   ` Thomas Renninger
2008-05-26 12:05                     ` Matthew Garrett [this message]
2008-05-26 12:56                       ` Thomas Renninger
2008-05-12 22:30 ` Cesar Eduardo Barros

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