Hi!
> I cannot understand why udelta/sdelta > "1000+(BIAS_MAX*factor_nr)" is a
> problem. Could any expert give me a explain, please?

It tests timer precision for getrusage timers. If the timers are
incremting by larger values than expected, something is wrong in kernel.
The precision depends on CONFIG_HZ settings which is represented by the
BIAS_MAX.

> And looks like with this patch applied, it works well on powerpc:

Can you please share the output of the testcase on ppc and ppc64? What
is the expected timer granularity there?

-- 
Cyril Hrubis
chru...@suse.cz

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