From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Tue, 18 Oct 2005 09:54:02 -0700 (PDT) From: Christoph Lameter Subject: Re: [PATCH 0/2] Page migration via Swap V2: Overview In-Reply-To: <20051018121642.GA13963@logos.cnet> Message-ID: References: <20051018004932.3191.30603.sendpatchset@schroedinger.engr.sgi.com> <20051018121642.GA13963@logos.cnet> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org Return-Path: To: Marcelo Tosatti Cc: akpm@osdl.org, linux-mm@kvack.org, ak@suse.de, lhms-devel@lists.sourceforge.net List-ID: On Tue, 18 Oct 2005, Marcelo Tosatti wrote: > Having a duplicate implementation is somewhat disappointing - why not fix the problems > with real page migration? There are problems on a variety of levels. Its just too complicated to work them out in one go. I think we would need much more support from the larger developer community to get there. With a simple working migration approach we can simultaneously: 1. Explore solutions to the lower level migration code 2. Deal with the memory policy issues arising in hotplug and in memory migration. These are masked by the swap based migration because swapin guarantees the correct use of memory policies and cpuset restrictions. 3. Implement appropriate higher level control of page migration via a variety of methods and develop the necessary user land support structures. -- 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