Date: Tue, 16 Dec 2008 00:39:00 +0100 (CET) From: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl> To: prad <prad@towardsfreedom.com> Cc: freebsd-questions@freebsd.org Subject: Re: power management Message-ID: <20081216003434.I57019@wojtek.tensor.gdynia.pl> In-Reply-To: <20081215152317.50e78aa4@gom.home> References: <20081215133957.4ef356ec@gom.home> <20081215231835.Y56482@wojtek.tensor.gdynia.pl> <20081215152317.50e78aa4@gom.home>
next in thread | previous in thread | raw e-mail | index | archive | help
> >> Simply - install linux, then FreeBSD on same machine and check it :) >> > :D > ya that's what's important here at least. anyway - just using hlt instruction greatly reduces CPU power usage even at full clock. i don't think the difference is THAT huge by reducing clock multipliers, voltage etc. on my laptop i don't even looked at this, and it works about 2 times longer under little CPU load than under full load. and it has hard drive and display that use power. CPU itself isn't big power eater (it's pentium-M 1200). Of course on "modern" CPUs having >>100W TDP it may make a difference. > not that i'm concerned, i'm not going back to linux (even though i > liked it while i used it). me too - until kernels 2.0.*, then it wasn't usable (stable) anymore.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20081216003434.I57019>