Date: Wed, 19 Nov 2008 10:07:21 +0200 From: Alexander Motin <mav@FreeBSD.org> To: Robert Noland <rnoland@FreeBSD.org> Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org Subject: Re: svn commit: r185050 - head/usr.sbin/powerd Message-ID: <4923C939.2090003@FreeBSD.org> In-Reply-To: <1227064379.1979.3.camel@wombat.2hip.net> References: <200811181324.mAIDOcOc079096@svn.freebsd.org> <1227064379.1979.3.camel@wombat.2hip.net>
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Robert Noland wrote: > On Tue, 2008-11-18 at 13:24 +0000, Alexander Motin wrote: >> Log: >> Set of powerd enchancements: >> > Somehow this seems to be too sensitive. My laptop previously idled at > 150Mhz... Occasionally bouncing up to maybe 450Mhz. With the new algo, > it will sometimes drop to 900Mhz, but winds itself right back up to > 1.8Ghz. Can you give me any details? How many CPUs do you have, which set of frequencies does it have? Are there any powerd options specified? Does powerd detects battery power? With AC or unknown power it will run in hiadaptive mode which keeps much higher frequencies. Can you run `powerd -v` and look what happens there? powerd now drops/rises frequency exponentially, so lower frequency will be reached only after some period of idle. Rising is much faster to quickly restore system interactivity. -- Alexander Motin
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