From mboxrd@z Thu Jan 1 00:00:00 1970 From: Russ Anderson Date: Tue, 18 May 2004 14:58:38 +0000 Subject: Re: [Lhns-devel] Re: Who's doing what with cpu/memory/node hotplug? Message-Id: <200405181458.i4IEwctN059484@ben.americas.sgi.com> List-Id: References: <20040513150842.22F5.YGOTO@us.fujitsu.com> In-Reply-To: <20040513150842.22F5.YGOTO@us.fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-hotplug@vger.kernel.org Matthias Fouquet-Lapar wrote: > > [ Just as a site-note, I always wondered if hotplug would be a useful feature > for larger configurations to reduce boot-time. For example, on a 64P system > you start the kernel on some "root" CPU with a relativly small amount of > memory, so it should boot relativly fast. While the system is going into > the desired run-level, hotplug/add now adds in parallel all available CPUs, > main memory, I/O etc. The idea is that you probably don't need 64P and > 1 Terabyte to start system services > ] I can certainly think of cases (customers) where minimizing the total system down time is a huge issue. Getting a subset of the system back into production as quickly as possible would be very desirable. Another advantage of that type boot process is that it would catch any bugs (or regressions) in the hot add code. At a minumum, it would be a very good test of the hot add functionality. I think a boot option to allow that type of booting process would be a good idea. -- Russ Anderson, OS RAS/Partitioning Project Lead SGI - Silicon Graphics Inc rja@sgi.com ------------------------------------------------------- This SF.Net email is sponsored by: SourceForge.net Broadband Sign-up now for SourceForge Broadband and get the fastest 6.0/768 connection for only $19.95/mo for the first 3 months! http://ads.osdn.com/?ad_id%62&alloc_ida84&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