Joakim Tjernlund joakim.tjernlund at
Wed Oct 17 02:43:16 EDT 2001

Hi again
> joakim.tjernlund at said:
> > I have noticed that when I mount a jffs2 FS(created with mkfs.jffs2)
> > for the first time and look at the output of the df command, I see
> > that "Use%" field slowly rise to 100% and then it drops back to ~15%
> > and then it stays there. During this rise I also noticed that kupdate
> > was eating alot of CPU(~80%)
> > Is this normal? 
> The first time it's mounted, all the blocks need to be erased and 
> formatted correctly. That's done in the context of kupdated. The Use% field 
> is high because the blocks are being taken out of the list of available 
> blocks - we should probably fix that.

Does JFFS2 erase the blocks that are already erased? I also noticed that an umount hangs
until kupdate is finished, should it? Is it safe to power cycle the board during this
initial formating?

> >  Is there any point to have a config option for preferred compression
> > algorithm order?
> Probably not. If you want rtime first you might as well just omit zlib 
> completely. And yes, rtime will be faster.
OK, if I am the only one interested in this I agree. I will just edit the sources to
my needs.

> --
> dwmw2
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