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Re: jffs2 ram requirements
- From: Bob Koninckx <bob dot koninckx at mech dot kuleuven dot ac dot be>
- To: "Koeller, T." <Thomas dot Koeller at baslerweb dot com>
- Cc: "ecos-discuss (E-Mail)" <ecos-discuss at sources dot redhat dot com>
- Date: 03 Jun 2003 15:34:59 +0200
- Subject: Re: [ECOS] jffs2 ram requirements
- Organization: KULeuven
- References: <850597605E79D21182830008C7A4B9CF1EB425E6@COMM1>
On Tue, 2003-06-03 at 15:08, Koeller, T. wrote:
> Hi,
>
> is there a worst-case estimate of the amount of ram required to run JFFS2? I
> guess
> it will need at least one buffer the size of one erase block of the flash
> chip used.
I suppose it also depends on the size of your filesystem.
> Looking at the source code I saw that it uses malloc() and free() in various
> places,
> so I suppose it's not possible to use static RAM buffers set aside for
> exclusive
> use by JFFS2 and get rid of that heap management stuff?
Don't think so. Not sure though ...
>
Hmmm, I see more people are starting to use jffs2 with eCos. Did any of
you experience the problems I had, as discussed in the thread starting
on
http://sources.redhat.com/ml/ecos-discuss/2003-04/msg00023.html
Or is this just a powerpc thing ?
Bob
> tk
> -----------------------------------------------
> Thomas Koeller, Software Development
>
> Basler Vision Technologies
> An der Strusbek 60-62
> 22926 Ahrensburg
> Germany
>
> Tel +49 (4102) 463-390
> Fax +49 (4102) 463-46390
>
> mailto:Thomas.Koeller@baslerweb.com
> http://www.baslerweb.com
--
----------------------------------------------------------------------
ir. Bob Koninckx
Katholieke Universiteit Leuven
Division Production Engineering, tel. +32 16 322535
Machine Design and Automation fax. +32 16 322987
Celestijnenlaan 300B bob.koninckx@mech.kuleuven.ac.be
B-3001 Leuven Belgium http://www.mech.kuleuven.ac.be/pma
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