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Re: Stress testing JFFS2
- From: Andrew Lunn <andrew at lunn dot ch>
- To: thomas dot koeller at baslerweb dot dot dot com
- Cc: eCos Disuss <ecos-discuss at sources dot redhat dot com>
- Date: Wed, 15 Oct 2003 23:02:15 +0200
- Subject: [ECOS] Re: Stress testing JFFS2
> - Every operation that changes the contents of the FLASH (even
> deleting files!) is performed by writing new nodes to the
> FLASH. Every such node is represented in RAM by a struct
> jffs2_raw_node_ref. The memory occupied by these structs is never
> freed unless the file system is unmounted or garbage collection takes
> place.
If i remember correctly, it think it was once said that the linux
version of jffs2 has a thread which does a garbage collect every so
often and that eCos does not have such a thread. eCos only does a
garbage collect when it really must do.
Maybe if you implement the garbage collect thread you can reduce your
RAM usage.
Andrew
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