[LTP] [PATCH 1/1] Fix compression ratio calculation in zram01

[Petr Vorel]

Hi Martin,

> On 11/4/19 4:16 PM, Petr Vorel wrote:
> > I wonder if /sys/block/zram0/mm_stat is missing whether it can be on any other
> > zram<id>. Is it it's presence file system specific? Shouldn't we just quit whole
> > test wit tst_brk TCONF.

> If /sys/block/zram0/mm_stat is missing then all /sys/block/zram*/mm_stat
> files should be missing. But I don't want to terminate the test there
> because the remaining 3 write tests could still find a regression. So
> print a TCONF message on the first pass and silently skip the remaining
> compression ratio checks.
Do you mean that dd filling zram could find a regression?

I'm asking because it's a bit strange to have test,
which doesn't lead to any result (TPASS/TFAIL/TBROK/TCONF), which will be

If this part is also a test, maybe following TINFO should be changed to TPASS.
+ Also new shell API allows to use loop in API (code simplify), but that
requires for each run to produce a result.


> I was also thinking about checking whether the write test filled the
> test file at least up to 50% of memory limit if mm_stat doesn't exist.
> But it'd mostly add unnecessary complexity.
Agree.

Kind regards,
Petr