jffs2_get_inode_nodes() very very slow

[Artem B. Bityuckiy]

On Wed, 2 Feb 2005, David Woodhouse wrote:

> On Wed, 2005-02-02 at 11:26 +0100, Thomas Gleixner wrote:
> > This converts the small nodes to bigger nodes when the data are
> > appended to log.big. I guess garbage collection should kick in quite
> > fast and clean up the small nodes. It might not totally go away, but
> > it should be much better than now. This will also give you more
> > capacity on your partition as the small nodes consist mostly of node
> > overhead. 
> 
> We could possibly do this for ourselves quite easily. When writing to a
> page which already has more than N fragments, obsolete them all and
> write the whole page out again.
IMO, perfectly good idea! I think the reasonable thrashhold is about 3-6 
fragments.

> 
> Or maybe, when writing the _last_ byte in a page which already has N
> fragments, rewrite the whole page?
> 
> -- 
> dwmw2
> 
> 
> 
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--
Best Regards,
Artem B. Bityuckiy,
St.-Petersburg, Russia.