From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jan Rychter Subject: Re: does cpu_idle() halt CPU? Date: Fri, 04 Apr 2003 00:45:21 +0200 Sender: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Message-ID: References: <20030328150218.D10287@gateway.junsun.net> <20030329134742.GD10287@poup.poupinou.org> <1049319771.19172.27.camel@comp6161.potsdam.edu> <20030403064726.GA27821@hell.org.pl> <1049394142.5251.7.camel@comp6161.potsdam.edu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: In-Reply-To: <1049394142.5251.7.camel-a2ysWtvtB4BRjtM+DFHcO/Z8FUJU4vz8@public.gmane.org> (Matthew Keller's message of "03 Apr 2003 13:22:22 -0500") Errors-To: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Help: List-Post: List-Subscribe: , List-Unsubscribe: , List-Archive: To: acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: linux-acpi@vger.kernel.org >>>>> "Matthew" == Matthew Keller : Matthew> On Thu, 2003-04-03 at 01:47, Karol Kozimor wrote: >> Thus wrote Matthew Keller: > SGI's XFS is wonderful, AFAICT. Just make sure you have the latest > tools and whatnot. >> >> Are you sure? I am using XFS on both my partitions, both mounted >> with noatime, I told syslog not to sync upon write, yet the disk >> still keeps spinning up arbitrarily (usually after 30 - 90 >> seconds). Or perhaps the cause lies somewhere else? Best regards, Matthew> I've got 4 partitions (root, /usr, /home and /var/log) and Matthew> everything is copacetic. One thing to note is that I, uh, Matthew> don't use syslog on my laptop as disabling it saves my battery Matthew> life by 10-15%. Try disabling it and seeing where that leads, Matthew> perhaps? noflushd (http://noflushd.sourceforge.net/ is what I was talking about when I mentioned a project to hold disk writes when the disk is spun down. Unfortunately, the project info page says it doesn't help with reiserfs. It also seems to be stagnant (but perhaps it just works so well?). --J. ------------------------------------------------------- This SF.net email is sponsored by: ValueWeb: Dedicated Hosting for just $79/mo with 500 GB of bandwidth! No other company gives more support or power for your dedicated server http://click.atdmt.com/AFF/go/sdnxxaff00300020aff/direct/01/