Date: Mon, 30 May 2005 12:33:34 -0700 From: Nate Lawson <nate@root.org> To: Takashi Inoue <takash-i@sophia.ac.jp> Cc: freebsd-acpi@freebsd.org Subject: Re: cpufreq on 5.4R Message-ID: <429B6A8E.1070906@root.org> In-Reply-To: <429ADD9D.90506@sophia.ac.jp> References: <429ADD9D.90506@sophia.ac.jp>
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Takashi Inoue wrote: > Hi Friends, > > I'm using 5.4R on my ThinkPad X40 with Pentium M 1.0GHz. > I have some questions. > > 1) I cannot find cpufreq.ko in 5.4R. Is it normal? > > "man cpufreq" shows manual of the framework. > But I cannot use it. Is it correct on 5.4R? > > 2) If so, what should I do to reduce cpu frequency? > > Now, cpu frequency is always 1GHz even with very light cpu load. > Therefore it is hot and noisy and it eats much power. > Currently 5.4R is stupid OS at here, if I do nothing. Only acpi_throttle is supported in the 5.4 version of cpufreq. I'm hoping to get an MFC of the -current version in soon although there are a couple nits I'd like to fix there first. > 3) Does est and estctrl in ports works on 5.4R? > > I've installed and run them. But, frequency which est tells and > sysctl -a dev.cpu.0.freq tells are different. > I'm not sure but it seems that frequency is not changed. > What is the relation between est(in ports) and > cpufreq framework on 5.4R? I'm not sure the port works properly with cpufreq. A better thing is to use the est.c from -current. Or just wait for MFC. -- Nate
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