[PATCH] Speed up mount for cfi_cmdset_0001 users

Jörn Engel joern at lazybastard.org
Tue Mar 27 08:41:32 EDT 2007

On Tue, 27 March 2007 14:27:52 +0200, Joakim Tjernlund wrote:
> On Tue, 2007-03-27 at 13:54 +0200, Jörn Engel wrote:
> > 
> > JFFS2 mount time on OLPC: ~3300ms
> What was the mount time before you applied the patch?

That was in January with the standard OLPC image.  Filesystem contained
the complete rootfs.  I did not optimize anything.

> > LogFS mount time on OLPC: ~60ms
> > 
> > While your works seems useful, pardon me if I don't care too much about
> > JFFS2 anymore. ;)
> :) Keep working, hopefully you can do a better GC as well.
> Since I only do production system ATM, it will be some time
> before I will use LogFS. Does logFS do NAND as well?

In principle.  Mkfs will create a bad block map.  But any blocks
going bad later on remain unhandled.  Write or erase errors simply cause

Not there yet, but getting closer.


The strong give up and move away, while the weak give up and stay.
-- unknown

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