From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265726AbTGDDjZ (ORCPT ); Thu, 3 Jul 2003 23:39:25 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265742AbTGDDjY (ORCPT ); Thu, 3 Jul 2003 23:39:24 -0400 Received: from e35.co.us.ibm.com ([32.97.110.133]:8895 "EHLO e35.co.us.ibm.com") by vger.kernel.org with ESMTP id S265726AbTGDDjY (ORCPT ); Thu, 3 Jul 2003 23:39:24 -0400 Subject: Re: Overhead of highpte (or not :) From: Dave Hansen To: "Martin J. Bligh" Cc: linux-kernel , Andrew Morton , William Lee Irwin III In-Reply-To: <68160000.1057286782@[10.10.2.4]> References: <574790000.1057186404@flay> <1057286058.11027.106.camel@nighthawk> <68160000.1057286782@[10.10.2.4]> Content-Type: text/plain Organization: Message-Id: <1057290780.18849.37.camel@nighthawk> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.2.4 Date: 03 Jul 2003 20:53:00 -0700 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org After fixing my gcc stupidity Elapsed: User: System: CPU: high pte: 49.962s 578.888s 99.048s 1356.2% lowpte: 49.630s 576.242s 90.158s 1342.0% ukva: 50.122s 577.164s 88.958s 1328.4% The increase in elapsed is probably within tolerances. The system time isn't :) The decrease in system time compared to lowpte comes because the PTE pages are allocated in highmem, and are node-local. Differential profiles are up in a bit. -- Dave Hansen haveblue@us.ibm.com