schedtool version (return code: 0)
ERROR: Ignoring arg version: is not a PID
schedtool -h (return code: 0)
get/set scheduling policies - v1.3.0, GPL'd, NO WARRANTY
USAGE: schedtool PIDS - query PIDS
schedtool [OPTIONS] PIDS - set PIDS
schedtool [OPTIONS] -e COMMAND - exec COMMAND
set scheduling policies:
-N for SCHED_NORMAL
-F -p PRIO for SCHED_FIFO only as root
-R -p PRIO for SCHED_RR only as root
-B for SCHED_BATCH
-I -p PRIO for SCHED_ISO
-D for SCHED_IDLEPRIO
-M POLICY for manual mode; raw number for POLICY
-p STATIC_PRIORITY usually 1-99; only for FIFO or RR
higher numbers means higher priority
-n NICE_LEVEL set niceness to NICE_LEVEL
-a AFFINITY_MASK set CPU-affinity to bitmask or list
-e COMMAND [ARGS] start COMMAND with specified policy/priority
-r display priority min/max for each policy
-v be verbose