From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Fri, 21 Oct 2005 08:28:49 -0700 From: Paul Jackson Subject: Re: [PATCH 0/4] Swap migration V3: Overview Message-Id: <20051021082849.45dafd27.pj@sgi.com> In-Reply-To: <20051020234621.GL5490@w-mikek2.ibm.com> References: <20051020225935.19761.57434.sendpatchset@schroedinger.engr.sgi.com> <20051020160638.58b4d08d.akpm@osdl.org> <20051020234621.GL5490@w-mikek2.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: mike kravetz Cc: akpm@osdl.org, clameter@sgi.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, magnus.damm@gmail.com, marcelo.tosatti@cyclades.com List-ID: Mike wrote: > Just to be clear, there are at least two distinct requirements for hotplug. > One only wants to remove a quantity of memory (location unimportant). Could you describe this case a little more? I wasn't aware of this hotplug requirement, until I saw you comment just now. The three reasons I knew of for wanting to move memory pages were: - offload some physical ram or node (avoid or unplug bad hardware) - task migration to another cpuset or moving an existing cpuset - various testing and performance motivations to optimize page location -- I won't rest till it's the best ... Programmer, Linux Scalability Paul Jackson 1.925.600.0401 -- 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