Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753023AbXLEAIV (ORCPT ); Tue, 4 Dec 2007 19:08:21 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751211AbXLEAIK (ORCPT ); Tue, 4 Dec 2007 19:08:10 -0500 Received: from wa-out-1112.google.com ([209.85.146.176]:50448 "EHLO wa-out-1112.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751202AbXLEAIJ (ORCPT ); Tue, 4 Dec 2007 19:08:09 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=mCIrKlcpLKHUyK0XkFLCNhDpg4foipw8S9j9pZwoKoyqUUbimKd/d961aY2zyTTPYrom6xpYyvDp38ORIyTSvbD3td0rtY/60mxG7T2mRV8+UeLNe/0204KGlvlG01KLR+eD89wPLeoP6cdyvZScysOBbmGuIgNtS1dXJYLsAyE= Message-ID: <6934efce0712041608w2e25587n6b2d738fa0265d9d@mail.gmail.com> Date: Tue, 4 Dec 2007 16:08:07 -0800 From: "Jared Hulbert" To: "Alan Cox" Subject: Re: solid state drive access and context switching Cc: "Chris Friesen" , linux-kernel@vger.kernel.org In-Reply-To: <20071204232449.6148e152@the-village.bc.nu> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <47548BF4.3010907@nortel.com> <20071203230629.725f4c7a@the-village.bc.nu> <6934efce0712040954v74cf0b4bk19b49988bc828233@mail.gmail.com> <20071204203536.2bf6d025@the-village.bc.nu> <6934efce0712041354n47c11d6ckbc7f4aa1e7c85f@mail.gmail.com> <20071204232449.6148e152@the-village.bc.nu> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 837 Lines: 16 On Dec 4, 2007 3:24 PM, Alan Cox wrote: > > Right. The trend is to hide the nastiness of NAND technology changes > > behind controllers. In general I think this is a good thing. > > You miss the point - any controller you hide it behind almost inevitably > adds enough latency you don't want to use it synchronously. I think I get it. We keep saying that it's the latency is too high. I agree that most technologies out there have latencies that are too high. Again I ask the question, what latencies do we have to hit before the sync options become worth it? -- 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/