From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Mon, 30 Sep 2002 00:51:39 -0700 From: "Martin J. Bligh" Reply-To: "Martin J. Bligh" Subject: Re: 2.5.39-mm1 Message-ID: <735786955.1033347097@[10.10.2.3]> In-Reply-To: <3D976206.B2C6A5B8@digeo.com> References: <3D976206.B2C6A5B8@digeo.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: owner-linux-mm@kvack.org Return-Path: To: Andrew Morton , lkml , "linux-mm@kvack.org" Cc: Anton Blanchard List-ID: > I must say that based on a small amount of performance testing the > benefits of the cache warmness thing are disappointing. Maybe 1% if > you squint. Martin, could you please do a before-and-after on the > NUMAQ's, double check that it is actually doing the right thing? Seems to work just fine: 2.5.38-mm1 + my original hot/cold code. Elapsed: 19.798s User: 191.61s System: 43.322s CPU: 1186.4% 2.5.39-mm1 Elapsed: 19.532s User: 192.25s System: 42.642s CPU: 1203.2% And it's a lot more than 1% for me ;-) About 12% of systime on kernel compile, IIRC. M. -- 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/