查看进程的调度策略

$ ps -eo class,cmd

class      CLS     scheduling class of the process. (alias policy, cls). Field's possible values are:
                   -   not reported
                   TS  SCHED_OTHER
                   FF  SCHED_FIFO
                   RR  SCHED_RR
                   B   SCHED_BATCH
                   ISO SCHED_ISO
                   IDL SCHED_IDLE
                   ?   unknown value