Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262368AbUC1TGu (ORCPT ); Sun, 28 Mar 2004 14:06:50 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262361AbUC1TGu (ORCPT ); Sun, 28 Mar 2004 14:06:50 -0500 Received: from parcelfarce.linux.theplanet.co.uk ([195.92.249.252]:35293 "EHLO www.linux.org.uk") by vger.kernel.org with ESMTP id S262356AbUC1TGs (ORCPT ); Sun, 28 Mar 2004 14:06:48 -0500 Message-ID: <4067223A.1040006@pobox.com> Date: Sun, 28 Mar 2004 14:06:34 -0500 From: Jeff Garzik User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.4) Gecko/20030703 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Jens Axboe CC: Jamie Lokier , Nick Piggin , linux-ide@vger.kernel.org, Linux Kernel , Andrew Morton Subject: Re: [PATCH] speed up SATA References: <40661049.1050004@yahoo.com.au> <406611CA.3050804@pobox.com> <406612AA.1090406@yahoo.com.au> <4066156F.1000805@pobox.com> <20040328141014.GE24370@suse.de> <40670BD9.9020707@pobox.com> <20040328173508.GI24370@suse.de> <40670FDB.6080409@pobox.com> <20040328175436.GL24370@suse.de> <20040328180809.GB1087@mail.shareable.org> <20040328181502.GO24370@suse.de> In-Reply-To: <20040328181502.GO24370@suse.de> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 873 Lines: 22 Jens Axboe wrote: > Yep it sure does, but try and find a drive attached to a SATA controller > that cannot do 40MiB/sec (or something like that). Storage doesn't move > _that_ fast, you can keep up. Nanosecond latencies and disturbingly high throughput are already possibly today :) Consider the battery-backed RAM gadgets that present themselves as ATA devices, or nbd over 10gige network. In fact I'm about to strip down drivers/scsi/sata_promise.c to a driver that just talks to the DIMM, and another else: drivers/block/pdc_mem.c. At that point you're really just looking at the PCI bus and RAM limits... Jeff - 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/