Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261568AbVC3F74 (ORCPT ); Wed, 30 Mar 2005 00:59:56 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261596AbVC3F74 (ORCPT ); Wed, 30 Mar 2005 00:59:56 -0500 Received: from ozlabs.org ([203.10.76.45]:14772 "EHLO ozlabs.org") by vger.kernel.org with ESMTP id S261568AbVC3F6t (ORCPT ); Wed, 30 Mar 2005 00:58:49 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <16970.16535.864623.323556@cargo.ozlabs.ibm.com> Date: Wed, 30 Mar 2005 16:00:55 +1000 From: Paul Mackerras To: Antonio Vargas Cc: "Serge E. Hallyn" , linux-kernel@vger.kernel.org, linuxppc64-dev@ozlabs.org Subject: Re: prefetch on ppc64 In-Reply-To: <69304d110503292138620d4587@mail.gmail.com> References: <20050330034034.GA1752@IBM-BWN8ZTBWA01.austin.ibm.com> <16970.9005.721117.942549@cargo.ozlabs.ibm.com> <69304d110503292138620d4587@mail.gmail.com> X-Mailer: VM 7.19 under Emacs 21.3.1 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 507 Lines: 14 Antonio Vargas writes: > Don't know exactly about power5, but G5 processor is described on IBM > docs as doing automatic whole-page prefetch read-ahead when detecting > linear accesses. Sure, but linked lists would rarely be laid out linearly in memory. Paul. - 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/