Date: Wed, 27 Sep 2006 19:44:51 +0200 (CEST) From: Oliver Fromme <olli@lurza.secnetix.de> To: freebsd-fs@FreeBSD.ORG, anderson@centtech.com Subject: Re: Hi: Porting Cramfs on FreeBSD Message-ID: <200609271744.k8RHipTS032655@lurza.secnetix.de> In-Reply-To: <451AA52F.2020408@centtech.com>
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Eric Anderson wrote: > I'm currently working on a tarfs, that will do something similar to > this, except it allows you to use a regular tar file as the file system > image. That's cool. I'm looking forward to it. > I don't have compression working yet, but that is on the > roadmap. [...] large file system sizes (based on available > memory) Hm. Does that mean that the whole (uncompressed) FS image will have to fit into memory? That would be a disadvantage compared to cramfs. Cramfs doesn't compress the whole FS as one object (like .tar.gz), but it compresses it page-by- page, so every page can be uncompressed independently, and memory usage is very low, which is good for small embedded applications. Best regards Oliver -- Oliver Fromme, secnetix GmbH & Co. KG, Marktplatz 29, 85567 Grafing Dienstleistungen mit Schwerpunkt FreeBSD: http://www.secnetix.de/bsd Any opinions expressed in this message may be personal to the author and may not necessarily reflect the opinions of secnetix in any way. "... there are two ways of constructing a software design: One way is to make it so simple that there are _obviously_ no deficiencies and the other way is to make it so complicated that there are no _obvious_ deficiencies." -- C.A.R. Hoare, ACM Turing Award Lecture, 1980
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