Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Fri, 9 Nov 2001 02:45:03 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Fri, 9 Nov 2001 02:44:54 -0500 Received: from pizda.ninka.net ([216.101.162.242]:38018 "EHLO pizda.ninka.net") by vger.kernel.org with ESMTP id ; Fri, 9 Nov 2001 02:44:39 -0500 Date: Thu, 08 Nov 2001 23:44:30 -0800 (PST) Message-Id: <20011108.234430.102576804.davem@redhat.com> To: akpm@zip.com.au Cc: mingo@elte.hu, ak@suse.de, anton@samba.org, linux-kernel@vger.kernel.org Subject: Re: speed difference between using hard-linked and modular drives? From: "David S. Miller" In-Reply-To: <3BEB8728.801344DC@zip.com.au> In-Reply-To: <3BEB82B8.541558CA@zip.com.au> <3BEB8728.801344DC@zip.com.au> X-Mailer: Mew version 2.0 on Emacs 21.0 / Mule 5.0 (SAKAKI) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org From: Andrew Morton Date: Thu, 08 Nov 2001 23:35:04 -0800 b) Except for certain specialised workloads, a lookup is usually associated with a big memory copy, so none of it matters and I disagree, cache pollution always matters. Especially, if the cpu does memcpy's using cache-bypass-on-miss. Franks a lot, David S. Miller davem@redhat.com - 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/