[LAU] memlock limits not set correctly?

[Michael Jarosch]

Am Freitag, den 18.01.2019, 13:43 +0000 schrieb John Davis:

> So "ulimit -l unlimited" should set max locked mem to unlimited (both
> soft
> and hard [if root]).
> 
> "ulimit -Sl unlimited" sets soft limit only.

Thanks a lot!
What's that hard- and soft-limit for?
Or to be more concrete: Is a soft limit of any use in realtime audio?

Greets!
Mitsch