From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pavel Machek Subject: Re: [PATCH 05/13] PM: Add option to disable /sys/power/state interface Date: Sun, 8 Feb 2009 22:06:58 +0100 Message-ID: <20090208210658.GF6369@elf.ucw.cz> References: <1233802226-23386-1-git-send-email-arve@android.com> <200902072337.40046.rjw@sisk.pl> <20090208103355.GC14143@elf.ucw.cz> <200902081450.46584.rjw@sisk.pl> <20090208140404.GA22084@bulgaria.corp.google.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: <20090208140404.GA22084@bulgaria.corp.google.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-pm-bounces@lists.linux-foundation.org Errors-To: linux-pm-bounces@lists.linux-foundation.org To: Brian Swetland Cc: ncunningham@crca.org.au, u.luckas@road.de, linux-pm@lists.linux-foundation.org List-Id: linux-pm@vger.kernel.org Hi! > Being in suspend, where periodic user and kernel timers aren't running, > and random userspace threads aren't possibly spinning, rather than just > being in idle in the lowest power possible state, represent a pretty > significant power savings. If kernel timers fire too often, fix them. If user land spins, fix it, or SIGSTOP. And yes, autosleep is useful. That's why I done those "sleepy linux" patches. Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html