Date: Fri, 11 Jan 2008 11:51:07 +0000 From: "Igor Mozolevsky" <igor@hybrid-lab.co.uk> To: "=?ISO-8859-1?Q?Dag-Erling_Sm=F8rgrav?=" <des@des.no> Cc: bruno@freebsd.org, njl@freebsd.org, freebsd-current@freebsd.org, Stefan Lambrev <stefan.lambrev@moneybookers.com> Subject: Re: powerd adaptive mode latching Message-ID: <a2b6592c0801110351l382959ffh1d55f2bcd2e6ca1b@mail.gmail.com> In-Reply-To: <86prw8eh5r.fsf@ds4.des.no> References: <200801110909.m0B99tlr097501@lurza.secnetix.de> <47873840.7050401@moneybookers.com> <86prw8eh5r.fsf@ds4.des.no>
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On 11/01/2008, Dag-Erling Sm=F8rgrav <des@des.no> wrote: > The whole point of powerd is to automatically adapt to the load. If > your laptop "lags too much" powerd should detect that and increase the > CPU frequency. However, poor interactive response can result when CPU > frequency fluctuates too quickly; perhaps your problem will go away with > Andrew's patch, which is intended to dampen such fluctuations? I was also thinking that the power increase probably shouldn't be linear, maybe there should be a choice of algs: 2-step, 50%-100%, etc. Normally you don't mind power dropping slowly, but for most things you don't want to wait N-seconds for the clock to be stepped up to its full throttle... Igor :-)
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