sched setscheduler(2)-Linux man page Name sched_setscheduler,sched_getscheduler-set and get scheduling algorithm/parameters Synopsis include <sched.h> int sched setscheduler(pid t pid,int policy, const struct sched param *param) int sched getscheduler(pid t pid); struct sched param int sched priority; }； Description sched_setscheduler()sets both the scheduling policy and the associated parameters for the process identified by pid.If pid equals zero,the scheduler of the calling process will be set.The interpretation of the parameter param depends on the selected policy. Currently,the following three scheduling policies are supported under Linux: SCHED_FIFO,SCHED_RR,SCHED_OTHER,and SCHED_BATCH;their respective semantics are described below. sched_getscheduler()queries the scheduling policy currently applied to the process 2023/7/1 identified by pid.If pid equals zero,the policy of the calling process will be retrieved. 统实验室 MLAB口RATORY UZHDU INSTIYUTE FOR AOVANCED SYUDY DF USTC2023/7/14 Linux操作系统分析 11/52