sched_rr_get_interval(2) System Calls Manual sched_rr_get_interval(2) sched_rr_get_interval - SCHED_RR C (libc, -lc) #include int sched_rr_get_interval(pid_t pid, struct timespec *tp); sched_rr_get_interval() pid timespec(3), tp. SCHED_RR. pid , *tp . sched_rr_get_interval() 0. -1, errno . EFAULT . EINVAL pid. ENOSYS ( ). ESRCH , pid. Linux Linux 3.9 ( ) SCHED_RR: /proc/sys/kernel/sched_rr_timeslice_ms , 100. 0 . POSIX.1-2008. POSIX.1-2001. Linux POSIX - . Linux () . (. setpriority(2)). (.., ) ; (.., ) . 0.1 ; , , . Linux 2.6.24. POSIX, sched_rr_get_interval(), _POSIX_PRIORITY_SCHEDULING . timespec(3), sched(7) () Alexander Golubev , Azamat Hackimov , Hotellook, Nikita , Spiros Georgaras , Vladislav , Yuri Kozlov , Kirill Rekhov ; GNU (GNU General Public License - GPL, 3 ) , - . - , , () () () <>. Linux 6.15 17 2025 . sched_rr_get_interval(2)