From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261303AbULZXNQ (ORCPT ); Sun, 26 Dec 2004 18:13:16 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261269AbULZXNQ (ORCPT ); Sun, 26 Dec 2004 18:13:16 -0500 Received: from fw.osdl.org ([65.172.181.6]:58581 "EHLO mail.osdl.org") by vger.kernel.org with ESMTP id S261180AbULZXNN (ORCPT ); Sun, 26 Dec 2004 18:13:13 -0500 Date: Sun, 26 Dec 2004 15:12:45 -0800 (PST) From: Linus Torvalds To: Florian Weimer cc: 7eggert@gmx.de, Christoph Lameter , akpm@osdl.org, linux-ia64@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: Prezeroing V2 [3/4]: Add support for ZEROED and NOT_ZEROED free maps In-Reply-To: <87wtv464ty.fsf@deneb.enyo.de> Message-ID: References: <87wtv464ty.fsf@deneb.enyo.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 On Mon, 27 Dec 2004, Florian Weimer wrote: > > But overwritting with zeros is commonly called "scrubbing", as in > "password scrubbing". On the other hand, "memory scrubbing" in an OS sense is most often used for reading and re-writing the same thing to fix correctable ECC failures. Anyway, at this point I think the most interesting question is whether it actually improves any macro-benchmark behaviour, rather than just a page fault latency tester microbenchmark.. Linus