From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1763274AbZE1S5Y (ORCPT ); Thu, 28 May 2009 14:57:24 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754658AbZE1S5R (ORCPT ); Thu, 28 May 2009 14:57:17 -0400 Received: from r00tworld.com ([212.85.137.21]:53149 "EHLO r00tworld.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753195AbZE1S5Q (ORCPT ); Thu, 28 May 2009 14:57:16 -0400 From: pageexec@freemail.hu To: Alan Cox , Ingo Molnar Date: Thu, 28 May 2009 20:56:55 +0200 MIME-Version: 1.0 Subject: Re: [patch 0/5] Support for sanitization flag in low-level page allocator Reply-to: pageexec@freemail.hu CC: Rik van Riel , "Larry H." , linux-kernel@vger.kernel.org, Linus Torvalds , linux-mm@kvack.org, Ingo Molnar , Linus Torvalds Message-ID: <4A1EDE77.32340.EF6193F@pageexec.freemail.hu> X-mailer: Pegasus Mail for Windows (4.50 PB1) Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Content-description: Mail message body X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-2.1.12 (r00tworld.com [212.85.137.21]); Thu, 28 May 2009 20:56:32 +0200 (CEST) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 28 May 2009 at 20:48, Alan Cox , Ingo Molnar wrote: > last year while developing/debugging something else i also ran some kernel > compilation tests and managed to dig out this one for you ('all' refers to > all of PaX): > > ------------------------------------------------------------------------------------------ > make -j4 2.6.24-rc7-i386-pax compiling 2.6.24-rc7-i386-pax (all with SANITIZE, no PARAVIRT) addendum: i just checked and that version didn't omit GPF_ZERO handling therefore the current version should have better performance, at least on this kind of workload where lots of anonymous userland pages are instantiated.