Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261269AbVCRUU4 (ORCPT ); Fri, 18 Mar 2005 15:20:56 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261202AbVCRUU4 (ORCPT ); Fri, 18 Mar 2005 15:20:56 -0500 Received: from omx3-ext.sgi.com ([192.48.171.20]:17594 "EHLO omx3.sgi.com") by vger.kernel.org with ESMTP id S261268AbVCRUUv (ORCPT ); Fri, 18 Mar 2005 15:20:51 -0500 Date: Fri, 18 Mar 2005 12:19:50 -0800 (PST) From: Christoph Lameter X-X-Sender: clameter@schroedinger.engr.sgi.com To: Andi Kleen cc: Denis Vlasenko , Dave Hansen , Andrew Morton , Linux Kernel Mailing List , Mel Gorman , linux-ia64@vger.kernel.org, Jens.Maurer@gmx.net Subject: Re: [PATCH] add a clear_pages function to clear pages of higher order In-Reply-To: <20050318192808.GB38053@muc.de> Message-ID: References: <200503111008.12134.vda@port.imtp.ilyichevsk.odessa.ua> <200503181154.37414.vda@port.imtp.ilyichevsk.odessa.ua> <20050318192808.GB38053@muc.de> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 551 Lines: 12 On Fri, 18 Mar 2005, Andi Kleen wrote: > It does not make any sense if you think of it - the memory bus > of the CPU cannot be that much faster than the cache. The memory bus would be able to reach a higher rate if properly optimized for sequential writes to memory. A cache typically does random writes. - 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/