The intended usage here is to basically kick restic as a background
"do it, but don't bother my normal load" process.
This allows passing the following environment variables in to
influence scheduling:
- NICE: usual CPU nice. Defaults to 0. This requires CAP_SYS_NICE
to set a negative nice (IE, prioritize).
- IONICE_CLASS: usual ionice class. Note that setting realtime
requires CAP_SYS_ADMIN. Also note the actual ionice default
is "none".
- IONICE_PRIORITY: set the priority within the given class. Ignored
if no class is specified due to class default of "no scheduler".
---------
Signed-off-by: Brian Harring <ferringb@gmail.com>
Co-authored-by: Michael Eischer <michael.eischer@fau.de>
