From owner-freebsd-current@FreeBSD.ORG Thu May 25 23:55:36 2006 Return-Path: X-Original-To: freebsd-current@freebsd.org Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 5DD2616A7F3 for ; Thu, 25 May 2006 23:55:36 +0000 (UTC) (envelope-from mf.danger@gmail.com) Received: from nf-out-0910.google.com (nf-out-0910.google.com [64.233.182.190]) by mx1.FreeBSD.org (Postfix) with ESMTP id B390D43D46 for ; Thu, 25 May 2006 23:55:35 +0000 (GMT) (envelope-from mf.danger@gmail.com) Received: by nf-out-0910.google.com with SMTP id x29so124175nfb for ; Thu, 25 May 2006 16:55:34 -0700 (PDT) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=NLhUeityK4qSv2DO/tGek6ZdCwvD93JUEj5BtjgvzJkb6eb/e+S12HCXGU75X2DX9+dS1QEmkcJDDxUxviBXvCYz/IkFEuniYsN/FaHqL74N1T+EJHfCax5P8jEvoEewH52hg7JGZwUwk2ujtLju+PMKae2Te3V33Q4VHbiTxgI= Received: by 10.48.234.14 with SMTP id g14mr1680455nfh; Thu, 25 May 2006 15:59:14 -0700 (PDT) Received: by 10.49.49.17 with HTTP; Thu, 25 May 2006 15:59:14 -0700 (PDT) Message-ID: <9f7850090605251559g5e3802e1u23180bd823d28a3b@mail.gmail.com> Date: Thu, 25 May 2006 15:59:14 -0700 From: "marty fouts" To: "Ben Kelly" In-Reply-To: <200605251628.58158.bkelly@vadev.org> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: quoted-printable Content-Disposition: inline References: <3500.1148571492@critter.freebsd.dk> <200605251628.58158.bkelly@vadev.org> Cc: Poul-Henning Kamp , freebsd-current@freebsd.org, small@freebsd.org Subject: Re: FreeBSD's embedded agenda X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 25 May 2006 23:55:38 -0000 On 5/25/06, Ben Kelly wrote: > On Thursday 25 May 2006 11:38 am, Poul-Henning Kamp wrote: > > Writing a flash-friendly-filesystem would be a good project. > > Would it be reasonable to try porting JFFS2 or are their reasons to write > something from scratch? > JFFS2 is ok for NOR flash, but has terrible performance problems on NAND flash, that seem to grow exponentially with the size of the flash. I'd recommend not basing a design on it.