From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tim Bird Date: Tue, 15 Feb 2005 00:16:43 +0000 Subject: Re: [OT] speeding boot process (was Re: [ANNOUNCE] hotplug-ng 001 Message-Id: <42113F6B.1080602@am.sony.com> List-Id: References: <20050211004033.GA26624@suse.de> <420C054B.1070502@downeast.net> <20050211011609.GA27176@suse.de> <1108354011.25912.43.camel@krustophenia.net> <4d8e3fd305021400323fa01fff@mail.gmail.com> <42106685.40307@arcor.de> <1108422240.28902.11.camel@krustophenia.net> <524qge20e2.fsf@topspin.com> <1108424720.32293.8.camel@krustophenia.net> In-Reply-To: <1108424720.32293.8.camel@krustophenia.net> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Lee Revell Cc: Roland Dreier , Prakash Punnoor , Paolo Ciarrocchi , Greg KH , Patrick McFarland , linux-hotplug-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org Lee Revell wrote: > But, I was referring more to things like GDM not being started until all > the other init scripts are done. Why not start it first, and let the > network initialize while the user is logging in? There are a number of techniques used by CE vendors to get fast bootup time. Some CE products boot Linux in under 1 second. Sony's best Linux boot time in the lab (from power on to user space) was 148 milliseconds, on an ARM chip (running at 200 MHZ I believe). Every product I know of that boots in under 1 second does it by completely eliminating RC scripts, and using a custom init program. For anyone interested, CELF has some resources on this topic at: http://tree.celinuxforum.org/CelfPubWiki/BootupTimeResources ==============Tim Bird Architecture Group Chair, CE Linux Forum Senior Staff Engineer, Sony Electronics ============== ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_ide95&alloc_id396&op=click _______________________________________________ Linux-hotplug-devel mailing list http://linux-hotplug.sourceforge.net Linux-hotplug-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-hotplug-devel