Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262905AbUC2Mch (ORCPT ); Mon, 29 Mar 2004 07:32:37 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262907AbUC2Mc1 (ORCPT ); Mon, 29 Mar 2004 07:32:27 -0500 Received: from atrey.karlin.mff.cuni.cz ([195.113.31.123]:44943 "EHLO atrey.karlin.mff.cuni.cz") by vger.kernel.org with ESMTP id S262905AbUC2MaP (ORCPT ); Mon, 29 Mar 2004 07:30:15 -0500 Date: Mon, 29 Mar 2004 13:36:42 +0200 From: Pavel Machek To: Jeff Garzik Cc: linux-ide@vger.kernel.org, Linux Kernel , Andrew Morton Subject: Re: [PATCH] speed up SATA Message-ID: <20040329113641.GE1453@openzaurus.ucw.cz> References: <4066021A.20308@pobox.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4066021A.20308@pobox.com> User-Agent: Mutt/1.3.27i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 826 Lines: 19 Hi! > Things seem to be looking pretty good, so it's now time to turn on > lba48-sized transfers. Most SATA disks will be lba48 anyway, even > the ones smaller than 137GB, for this and other reasons. > > With this simple patch, the max request size goes from 128K to > 32MB... so you can imagine this will definitely help performance. > Throughput goes up. Interrupts go down. Fun for the whole family. 32MB is one second if everything goes okay... That will be horrible for latency, right? -- 64 bytes from 195.113.31.123: icmp_seq=28 ttl=51 time=448769.1 ms - 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/