Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758578AbYB2AZR (ORCPT ); Thu, 28 Feb 2008 19:25:17 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752934AbYB2AZE (ORCPT ); Thu, 28 Feb 2008 19:25:04 -0500 Received: from host36-195-149-62.serverdedicati.aruba.it ([62.149.195.36]:35541 "EHLO mx.cpushare.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755303AbYB2AZD (ORCPT ); Thu, 28 Feb 2008 19:25:03 -0500 Date: Fri, 29 Feb 2008 01:24:59 +0100 From: Andrea Arcangeli To: Jack Steiner Cc: Christoph Lameter , Nick Piggin , akpm@linux-foundation.org, Robin Holt , Avi Kivity , Izik Eidus , kvm-devel@lists.sourceforge.net, Peter Zijlstra , general@lists.openfabrics.org, Steve Wise , Roland Dreier , Kanoj Sarcar , linux-kernel@vger.kernel.org, linux-mm@kvack.org, daniel.blueman@quadrics.com Subject: Re: [PATCH] mmu notifiers #v7 Message-ID: <20080229001126.GL8091@v2.random> References: <20080219231157.GC18912@wotan.suse.de> <20080220010941.GR7128@v2.random> <20080220103942.GU7128@v2.random> <20080221045430.GC15215@wotan.suse.de> <20080221144023.GC9427@v2.random> <20080221161028.GA14220@sgi.com> <20080227192610.GF28483@v2.random> <20080228215257.GJ8091@v2.random> <20080228231732.GA21604@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20080228231732.GA21604@sgi.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 581 Lines: 11 On Thu, Feb 28, 2008 at 05:17:33PM -0600, Jack Steiner wrote: > I disagree. The location of the callout IS a performance issue. In simple > comparisons of the 2 patches (Christoph's vs. Andrea's), Andrea's has a 7X > increase in the number of TLB purges being issued to the GRU. TLB flushing Are you sure that you're referring to #v7? -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/