Date: Tue, 17 Aug 2004 08:59:39 +0200 From: Volker Kindermann <ml@ps102.de> To: freebsd-mobile@freebsd.org Subject: Re: Enhanced SpeedStep driver available Message-ID: <20040817085939.3a8dd948@ariel.office.volker.de> In-Reply-To: <6.1.0.6.1.20040816074348.03f99338@popserver.sfu.ca> References: <6.1.0.6.1.20040816074348.03f99338@popserver.sfu.ca>
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Hi Colin, first, thanks for your great work! > I've also put together a very simple control daemon which > reads kern.cp_time every second and adjusts the cpu frequency > based on the fraction of cpu time which is idle. Is it possible to make that reading intervall smaller, e.g. half a second? Reason: in their latest release, german c't magazine (for computer technik) reports about linux on laptops. There's an utility called cpufreq which does similar work as your module. They say that check intervalls longer than half a second could make the system feel slow. I don't know if this affects only linux systems but perhaps it's worth testing. -volker
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