Date: Sat, 12 Jan 2008 13:27:46 -0800 From: Maxim Sobolev <sobomax@digifonica.com> To: Igor Mozolevsky <igor@hybrid-lab.co.uk> Cc: njl@FreeBSD.org, bruno@FreeBSD.org, Stefan Lambrev <stefan.lambrev@moneybookers.com>, freebsd-current@FreeBSD.org, =?ISO-8859-1?Q?Dag-Erling_Sm=F8rgrav?= <des@des.no> Subject: Re: powerd adaptive mode latching Message-ID: <478930D2.90806@digifonica.com> In-Reply-To: <a2b6592c0801111119r148d3697hf75a59b7bf74d540@mail.gmail.com> References: <a2b6592c0801110351l382959ffh1d55f2bcd2e6ca1b@mail.gmail.com> <20080111181344.5E7244500E@ptavv.es.net> <a2b6592c0801111119r148d3697hf75a59b7bf74d540@mail.gmail.com>
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I wonder if somebody did measurement of power consumption with powerd and without it on typical tasks. There is very interesting idea in the last issue of ACM Queue that it might be much more beneficial to run CPU at the full speed and then switch it to low-power mode as soon as possible in the idle loop than to run longer at reduced speed for a longer period of time. -Maxim
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