CHRT(1) CHRT(1) (NAME) chrt - (Real-Time) (SYNOPSIS) chrt [] priority command argument ... chrt [] -p [priority] PID (DESCRIPTION) chrt (real-time) PID command . (POLICIES) -o, --other SCHED_OTHER ( ). . -f, --fifo SCHED_FIFO ( / ). -r, --rr SCHED_RR ( / Round-Robin). SCHED_RR . -b, --batch SCHED_BATCH ( ). ... . -i, --idle SCHED_IDLE ( ). ... . -d, --deadline SCHED_DEADLINE ( ). .. . --sched-runtime --sched-deadline --sched-period . runtime <= deadline <= period . --sched-deadline chrt period deadline --sched-runtime deadline runtime . --sched-period . sched(7) . (SCHEDULING OPTIONS) -T, --sched-runtime nanoseconds runtime SCHED_DEADLINE SCHED_OTHER SCHED_BATCH ( ). runtime . . -P, --sched-period nanoseconds period SCHED_DEADLINE ( ). . -D, --sched-deadline nanoseconds deadline SCHED_DEADLINE ( ). -R, --reset-on-fork SCHED_RESET_ON_FORK SCHED_FLAG_RESET_ON_FORK. ... reset-on-fork . fork(2) . reset-on-fork CAP_SYS_NICE . fork(2) . reset-on-fork : o SCHED_FIFO SCHED_RR SCHED_OTHER . o nice nice . (OPTIONS) -a, --all-tasks ( / ) PID . -m, --max . -p, --pid PID . -v, --verbose . -h, --help . -V, --version . (EXAMPLES) : chrt priority command [arguments] : chrt -p PID : chrt -r -p priority PID 30 PID SCHED_RR ( / round-robin) : chrt -r -p 30 PID : chrt -o -p 0 PID sched(7) . (PERMISSIONS) CAP_SYS_NICE . . (NOTES) SCHED_FIFO SCHED_OTHER SCHED_RR POSIX 1003.1b . . SCHED_OTHER . (AUTHORS) Robert Love , Karel Zak (SEE ALSO) nice(1), renice(1), taskset(1), sched(7) sched_setscheduler(2) . (REPORTING BUGS) : . (AVAILABILITY) chrt util-linux . . util-linux 2.41.5 2026-06-16 CHRT(1)