From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932396AbXC2BSJ (ORCPT ); Wed, 28 Mar 2007 21:18:09 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932817AbXC2BSJ (ORCPT ); Wed, 28 Mar 2007 21:18:09 -0400 Received: from kanga.kvack.org ([66.96.29.28]:60272 "EHLO kanga.kvack.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932396AbXC2BSI (ORCPT ); Wed, 28 Mar 2007 21:18:08 -0400 Date: Wed, 28 Mar 2007 21:17:51 -0400 From: Benjamin LaHaise To: Christoph Lameter Cc: Andrew Morton , linux-kernel@vger.kernel.org, William Lee Irwin III Subject: Re: [RFC] i386: Remove page sized slabs for pgds and pmds Message-ID: <20070329011751.GC17334@kvack.org> References: <20070328134511.0d61ec8f.akpm@linux-foundation.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Mar 28, 2007 at 02:05:54PM -0700, Christoph Lameter wrote: > Tried this also on x86_64 with an enhanced quicklist patch that also deals > with ptes (at the price of not guaranteeing the free after the tlb flush): ... > Seems that there is a slight benefit but its also barely above noise > level. You're not running a test that will show any benefit in this area. Run some heavy shell scripts or lmbench's fork() and exec() latency tests to get real numbers. -ben -- "Time is of no importance, Mr. President, only life is important." Don't Email: .