Re: UBIFS on Atmel Dataflash

[Artem Bityutskiy <dedekind1@gmail.com>]

On Wed, 2009-12-09 at 10:55 +0100, Andre Puschmann wrote:
> Hi Artem,
> 
> thanks for your prompt reply.
> 
> Artem Bityutskiy wrote:
> > Yeah, I had a feeling we should not have assumed power of 2. But it was
> > so appealing, because we can avoid (slow) divisions when aligning data
> > to min. I/O unit boundary. I knew about DataFlash, but it is usually so
> > small that I did not expect anyone using UBIFS there.
> >
> > Are you sure you want ubifs on such a tiny flash? We were really
> > targeting to larger ones, say, starting from 64MiB at least.
> >   
> Mmh, the idea to run UBIFS came up due to a problem with JFFS2 on this
> device. So I wanted to use another writeable flash fs to  find out
> whether its a fs-problem or a mtd/dataflash one.
> 
> So you suggest to stick with JFFS2 in this case?

Yes, UBI/UBIFS flash overhead is higher, and it is not very appropriate
for small flashes because of this.

JFFS2 is better for small flashes.

-- 
Best Regards,
Artem Bityutskiy (Артём Битюцкий)