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Subject: Re: UBI, no sub-pages support
From: Artem Bityutskiy <dedekind1@gmail.com>
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To: Angelo Dureghello <angelo70@gmail.com>
Date: Mon, 08 Sep 2014 13:03:55 +0300
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On Tue, 2014-08-19 at 13:28 +0200, Angelo Dureghello wrote:
> Another question is: is there a UBI performance loss using pages as
> minimal I/O (no subpages) or i can consider it insignificant ?

I can only comment on this question - you should not lose performance,
but you'll have more NAND flash space consumed by UBI for its own
purposes, comparing to what you'd have if you had sub-pages.

IOW, sub-pages are mostly lessening the UBI space overhead.

The MTD web page has a section about the space overhead with some more
information.

-- 
Best Regards,
Artem Bityutskiy