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From: Dave Jones <davej@redhat.com>
To: Dominik Brodowski <linux@brodo.de>
Cc: Ducrot Bruno <ducrot@poupinou.org>, cpufreq@www.linux.org.uk
Subject: Re: [PATCH][DOCUMENTATION BUGFIX] latency in micro-, not nanoseconds
Date: Mon, 10 Nov 2003 21:16:54 +0000	[thread overview]
Message-ID: <20031110211654.GA10144@redhat.com> (raw)
In-Reply-To: <20031110205029.GA7149@brodo.de>

On Mon, Nov 10, 2003 at 09:50:29PM +0100, Dominik Brodowski wrote:

 > > Actually, I'm wondering why we need this at all anyway..
 > 
 > To determine the "cost" of frequency and/or voltage transitions when doing
 > dynamic switching. If the system is unresponsive for too long a period of 
 > time, dynamic switching doesn't make sense [at least when some sort of
 > real-time or "responsiveness" is needed]. Also, the time to needed switch 
 > back to 100% of processing power should be added to the "overhead" idleness
 > on future load calculations of yet-to-be-written load-predicting cpufreq
 > governors.

Ok, I can buy that. But it's not being used at all right now, right ?

		Dave

  reply	other threads:[~2003-11-10 21:16 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-11-04 16:08 [PATCH][DOCUMENTATION BUGFIX] latency in micro-, not nanoseconds Dominik Brodowski
2003-11-10 16:32 ` Dave Jones
2003-11-10 17:15   ` Ducrot Bruno
2003-11-10 17:22     ` Dave Jones
2003-11-10 20:50       ` Dominik Brodowski
2003-11-10 21:16         ` Dave Jones [this message]
2003-11-11 18:54           ` Dominik Brodowski
2003-11-11 22:45             ` Dave Jones
2003-11-12 11:01               ` Ducrot Bruno
2003-11-12 14:17                 ` Dave Jones
2003-11-12 15:02                   ` Ducrot Bruno
2003-11-11 19:57 Pallipadi, Venkatesh

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