Re: JFFS3 & performance

Artem B. Bityuckiy
2005-01-12T18:43:53Z

On Wed, 12 Jan 2005, [iso-8859-1] Jörn Engel wrote:

> On Wed, 12 January 2005 19:27:59 +0100, Thomas Gleixner wrote:
> >
> > Missing error
> >
> > There is another type of error, which came up lately with AND FLASH. If
> ^^
> You mean NAND, right?
Think AG-AND flashes. I'm not know much about this technology either.

>
> > you leave a block untouched in a range of blocks and erase/program the
> > surrounding blocks, then the untouched block is likely to have bitflips.
> > GC likeliness to GC clean blocks from time to time will cover this, but
> > if you have a big number of clean blocks you might get into trouble.
> >
> > A strong argument for using seperate partitions for static and dynamic
> > data.
>
> Wouldn't that also require a DMZ of some size between static and
> dynamic data? For example, 4MB static, 1MB unused, rest dynamic?
>
> Jörn
>
> --
> If you're willing to restrict the flexibility of your approach,
> you can almost always do something better.
> -- John Carmack
>

--
Best Regards,
Artem B. Bityuckiy,
St.-Petersburg, Russia.