On Tuesday 24 February 2009 15:55:44 rogerz zhang wrote:
> Hi:
>
> I'm using yaffs on a 6×1GB nandflash array. When the disk is full of files,
> it takes as long as 2-3 minutes to mount it. I did a simple profiling and
> found out yaffs_Scan and yaffs_Scanback costs most of the time.
>
> Is there any way to improve the scanning speed on large yaffs device?


Mounting can take quite a lot of time depending on what is written to the 
flash.

If you shut down cleanly then the "checkpoint" mechanism will save a snapshot 
of the state and that should restore really quickly (a few seconds).

There are some potential improvements but they are non-trivial.

-- Charles