From mboxrd@z Thu Jan 1 00:00:00 1970 Message-Id: <200511102334.jAANY1g21612@unix-os.sc.intel.com> From: "Chen, Kenneth W" Subject: RE: [PATCH] dequeue a huge page near to this node Date: Thu, 10 Nov 2005 15:34:01 -0800 MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit In-Reply-To: Sender: owner-linux-mm@kvack.org Return-Path: To: 'Christoph Lameter' , Adam Litke Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, akpm@osdl.org List-ID: Christoph Lameter wrote on Thursday, November 10, 2005 3:27 PM > The following patch changes the dequeueing to select a huge page near > the node executing instead of always beginning to check for free > nodes from node 0. This will result in a placement of the huge pages near > the executing processor improving performance. > > The existing implementation can place the huge pages far away from > the executing processor causing significant degradation of performance. > The search starting from zero also means that the lower zones quickly > run out of memory. Selecting a huge page near the process distributed the > huge pages better. Looks great! - Ken -- 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