From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Jared Hulbert" Subject: Re: [PATCH 00/10] AXFS: Advanced XIP filesystem Date: Fri, 22 Aug 2008 11:16:20 -0700 Message-ID: <6934efce0808221116w76a662b0t954b0922b69d3232@mail.gmail.com> References: <48AD00C4.6060302@gmail.com> <20080821110749.GA1926@shareable.org> <6934efce0808210711t686a88eci6eb294dbb54d68fe@mail.gmail.com> <48AE0476.80109@snapgear.com> <20080822181314.GB24179@shareable.org> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from:to :subject:cc:in-reply-to:mime-version:content-type :content-transfer-encoding:content-disposition:references; bh=jfkBy/BluqhkIUkp7anCC2babsKGryzqUGueihWz5YY=; b=X3tVVr9gxEUtyO/vInWQAch+OXA9bsodRmfY++lgvig1DTrh7lO43UPZVBVr5KTQOW J3fovyLo7o9c3bV17CSEq/WZuKw72FfTLG/6wUTPuJqe2igmj99vNEpQ0+xeq5UFRE1A puLOkLUbRaX+fqL3nAw/IeSF7Un+Rr4aCPKiI= In-Reply-To: <20080822181314.GB24179@shareable.org> Content-Disposition: inline Sender: linux-embedded-owner@vger.kernel.org List-ID: Content-Type: text/plain; charset="us-ascii" To: Jamie Lokier Cc: Greg Ungerer , Linux-kernel@vger.kernel.org, linux-embedded@vger.kernel.org, linux-mtd , =?UTF-8?Q?J=C3=B6rn_Engel?= , tim.bird@am.sony.com, cotte@de.ibm.com, nickpiggin@yahoo.com.au On Fri, Aug 22, 2008 at 11:13 AM, Jamie Lokier wrote: > 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) What kind of NOR you using? That is not what I measure with fast synchronous burst NOR's.