From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Thu, 1 Mar 2007 16:44:42 -0800 (PST) From: Linus Torvalds Subject: Re: The performance and behaviour of the anti-fragmentation related patches In-Reply-To: <20070301160915.6da876c5.akpm@linux-foundation.org> Message-ID: References: <20070301101249.GA29351@skynet.ie> <20070301160915.6da876c5.akpm@linux-foundation.org> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org Return-Path: To: Andrew Morton Cc: Mel Gorman , npiggin@suse.de, clameter@engr.sgi.com, mingo@elte.hu, jschopp@austin.ibm.com, arjan@infradead.org, mbligh@mbligh.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org List-ID: On Thu, 1 Mar 2007, Andrew Morton wrote: > > So some urgent questions are: how are we going to do mem hotunplug and > per-container RSS? Also: how are we going to do this in virtualized environments? Usually the people who care abotu memory hotunplug are exactly the same people who also care (or claim to care, or _will_ care) about virtualization. My personal opinion is that while I'm not a huge fan of virtualization, these kinds of things really _can_ be handled more cleanly at that layer, and not in the kernel at all. Afaik, it's what IBM already does, and has been doing for a while. There's no shame in looking at what already works, especially if it's simpler. Linus -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org