From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jamie Lokier Subject: Re: [PATCH 00/10] AXFS: Advanced XIP filesystem Date: Fri, 22 Aug 2008 19:13:14 +0100 Message-ID: <20080822181314.GB24179@shareable.org> References: <48AD00C4.6060302@gmail.com> <20080821110749.GA1926@shareable.org> <6934efce0808210711t686a88eci6eb294dbb54d68fe@mail.gmail.com> <48AE0476.80109@snapgear.com> Mime-Version: 1.0 Return-path: Content-Disposition: inline In-Reply-To: <48AE0476.80109@snapgear.com> Sender: linux-embedded-owner@vger.kernel.org List-ID: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Greg Ungerer Cc: Jared Hulbert , Linux-kernel@vger.kernel.org, linux-embedded@vger.kernel.org, linux-mtd , =?iso-8859-1?Q?J=F6rn?= Engel , tim.bird@am.sony.com, cotte@de.ibm.com, nickpiggin@yahoo.com.au Greg Ungerer wrote: > One thing for sure is that many people who do non-MMU setups > are interested in XIP to get the space savings. These are very > often small devices with very constrained RAM and flash. (For > whatever it is worth single NOR flash only boards are common in > these smaller form factors :-) I'm using XIP on a device with 32MB RAM. The reason I use it is _partly_ to save RAM, partly because programs start about 10 times faster (reading NOR flash is slow and I keep the XIP region in RAM) and partly because it reduces memory fragmentation. -- Jamie