|From:||Arjan van de Ven <arjan-AT-infradead.org>|
|To:||Brian Swetland <swetland-AT-google.com>|
|Subject:||Re: [RFD] Automatic suspend|
|Date:||Tue, 17 Feb 2009 06:46:30 -0800|
|Cc:||Matthew Garrett <mjg59-AT-srcf.ucam.org>, "Rafael J. Wysocki" <rjw-AT-sisk.pl>, "Woodruff, Richard" <r-woodruff2-AT-ti.com>, Alan Stern <stern-AT-rowland.harvard.edu>, Kyle Moffett <kyle-AT-moffetthome.net>, Oliver Neukum <oliver-AT-neukum.org>, Benjamin Herrenschmidt <benh-AT-kernel.crashing.org>, pm list <linux-pm-AT-lists.linux-foundation.org>, LKML <linux-kernel-AT-vger.kernel.org>, Arve =?UTF-8?B?SGrDuG5uZXbDpWc=?= <arve-AT-android.com>, Pavel Machek <pavel-AT-ucw.cz>, Nigel Cunningham <nigel-AT-nigel.suspend2.net>, mark gross <mgross-AT-linux.intel.com>, Uli Luckas <u.luckas-AT-road.de>, Igor Stoppa <igor.stoppa-AT-nokia.com>, Len Brown <lenb-AT-kernel.org>|
On Tue, 17 Feb 2009 06:20:01 -0800 Brian Swetland <email@example.com> wrote: > Of course that still doesn't address userspace. Aggressively going to > suspend lets us compensate for userspace programs that do somewhat > silly things (I agree that it would be best if they didn't but they > do and getting *everyone* to write their userspace code to avoid > spinning or avoid waking up on short-duration timers to poll is a > losing battle). actually with powertop... on the open source side things are actually won. It took all of 6 months... I don't see that as a valid excuse. In fact, if this kind of solution makes real userspace scheduled timers to be missed then I consider it a serious functionality misfeature. -- Arjan van de Ven Intel Open Source Technology Centre For development, discussion and tips for power savings, visit http://www.lesswatts.org
Copyright © 2009, Eklektix, Inc.
Comments and public postings are copyrighted by their creators.
Linux is a registered trademark of Linus Torvalds