ubifs: nand flash wear profiling for userspace application file i/o

[Ильяс Гасанов]

Hi,

2015-08-07 15:30 GMT+03:00 Richard Weinberger <richard.weinberger at gmail.com>:
> 10000 is not much, is this MLC?

Maybe, I'm not sure. At least, this is the guaranteed value, not the
average one, afaik.

> ubinfo prints the maximum erase counter value, does this help?
> This info is also available via /sys/class/ubi/ubi0/max_ec.

Yes, it does for our purpose. We need to test it for some days though,
for precision reasons.

> If you want the distribution you have to write a small script which
> reads the EC header of all blocks.
> But as UBI does wear leveling for you, the distribution should not
> matter. Please keep in mind that you need to define a sane
> WL threshold.

That about covers it, thank you.

Best regards,
Ilyas Gasanov