From owner-freebsd-mobile Tue Jun 6 15:48:30 2000 Delivered-To: freebsd-mobile@freebsd.org Received: from moek.pir.net (moek.pir.net [209.192.237.190]) by hub.freebsd.org (Postfix) with ESMTP id 8D0ED37B6DF for ; Tue, 6 Jun 2000 15:48:27 -0700 (PDT) (envelope-from pir@pir.net) Received: from pir by moek.pir.net with local (Exim) id 12zS94-00018c-00 for freebsd-mobile@freebsd.org; Tue, 06 Jun 2000 18:48:26 -0400 Date: Tue, 6 Jun 2000 18:48:25 -0400 From: Peter Radcliffe To: freebsd-mobile@freebsd.org Subject: Re: spinning down the drive Message-ID: <20000606184825.J24457@pir.net> Mail-Followup-To: freebsd-mobile@freebsd.org References: <20000606161140.A8303@dophnic.yi.org> <20000606234343.A68786@keltia.freenix.fr> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2i In-Reply-To: <20000606234343.A68786@keltia.freenix.fr>; from roberto@keltia.freenix.fr on Tue, Jun 06, 2000 at 11:43:43PM +0200 X-fish: < Sender: owner-freebsd-mobile@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org Ollivier Robert probably said: > Considering that you have a sync(2) every 30s (w/o softupdates) and even more > of them with softupdates, I don't see what you'd gain. > > I'd say it takes more power to restart the drive every N seconds than letting > it spin. > I may be wrong but I don't see it useful. I set my disk to spin down after 5 mins on my laptop and do actually notice fairly significant battery life gains but it depends a lot on usage. I turn off atrun, which helps. P. -- pir pir@pir.net pir@net.tufts.edu To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-mobile" in the body of the message