From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Thu, 2 Nov 2006 13:04:50 -0800 (PST) From: Christoph Lameter Subject: Re: Page allocator: Single Zone optimizations In-Reply-To: Message-ID: References: <20061027190452.6ff86cae.akpm@osdl.org> <20061027192429.42bb4be4.akpm@osdl.org> <20061027214324.4f80e992.akpm@osdl.org> <20061028180402.7c3e6ad8.akpm@osdl.org> <4544914F.3000502@yahoo.com.au> <20061101182605.GC27386@skynet.ie> <20061101123451.3fd6cfa4.akpm@osdl.org> <454A2CE5.6080003@shadowen.org> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org Return-Path: To: Mel Gorman Cc: Andy Whitcroft , Andrew Morton , Nick Piggin , KAMEZAWA Hiroyuki , Linux Memory Management List , Peter Zijlstra List-ID: On Thu, 2 Nov 2006, Mel Gorman wrote: > "Special way" to me is just "place them somewhere smart". If their location > was really important for hot-unplug, a placement policy could always use > MAX_ORDER_NR_PAGES at the lower PFNs in a zone for them. This should be easier > than introducing additional memory pools, zones or other mechanisms. This is going to be fine for hotplug in terms of a portion of a node going down. However, at some point we would like to have node plug and unplug. An unpluggable NUMA node must only allow movable memory and all non movable allocations will need to be redirected to other nodes. -- 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