Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754173AbXLDUkV (ORCPT ); Tue, 4 Dec 2007 15:40:21 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751999AbXLDUkG (ORCPT ); Tue, 4 Dec 2007 15:40:06 -0500 Received: from outpipe-village-512-1.bc.nu ([81.2.110.250]:49691 "EHLO the-village.bc.nu" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1751964AbXLDUkE (ORCPT ); Tue, 4 Dec 2007 15:40:04 -0500 Date: Tue, 4 Dec 2007 20:35:36 +0000 From: Alan Cox To: "Jared Hulbert" Cc: "Chris Friesen" , linux-kernel@vger.kernel.org Subject: Re: solid state drive access and context switching Message-ID: <20071204203536.2bf6d025@the-village.bc.nu> In-Reply-To: <6934efce0712040954v74cf0b4bk19b49988bc828233@mail.gmail.com> References: <47548BF4.3010907@nortel.com> <20071203230629.725f4c7a@the-village.bc.nu> <6934efce0712040954v74cf0b4bk19b49988bc828233@mail.gmail.com> X-Mailer: Claws Mail 2.10.0 (GTK+ 2.10.14; i386-redhat-linux-gnu) Organization: Red Hat UK Cyf., Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SL4 1TE, Y Deyrnas Gyfunol. Cofrestrwyd yng Nghymru a Lloegr o'r rhif cofrestru 3798903 Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 637 Lines: 17 > microseconds level and an order of magnitude higher bandwidth than > SATA. Is that fast enough to warrant this more synchronous IO? See the mtd layer. > BTW - This trend toward faster, lower latency busses is marching > forward. 2 examples; the ioDrive from Fusion IO, Micron's RAM-module > like SSD concept. Very much so but we can do quite a bit in 10,000 processor cycles ... Alan -- 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/