State of read-only filesystems in NAND / MTD bad blocks handling when reading

[Gregory CLEMENT]

2012/5/3 Ricard Wanderlof <ricard.wanderlof at axis.com>:
>
> On Wed, 2 May 2012, Thilo Fromm wrote:
>
>>> gluebi + mtdblock_ro doesn't work ?
>>
>>
>> Can you paint the abstraction layer call flow involved in this for a
>> single read transaction and _not_ burst out laughing ;) ? We're on an
>> embedded system, man :)
>
>
> The crucial issue is really what performance you get, gluebi is fairly
> transparent so I don't think you loose any significant amount.

Indeed with the direct approach we had with ubi_blk, the performance appeared
to be _slightly_ better with ubiblk than gluebi+mtdblock_ro, according to our
 benchmarks (see  http://elinux.org/Flash_Filesystem_Benchmarks )


>
> /Ricard
> --
> Ricard Wolf Wanderlöf                           ricardw(at)axis.com
> Axis Communications AB, Lund, Sweden            www.axis.com
> Phone +46 46 272 2016                           Fax +46 46 13 61 30
>
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-- 
Gregory CLEMENT