스케줄링 관련 리눅스 명령어

• ps(busybox v1.27.2)
• show all thread
  

# ps    1 root       1:16 {systemd} /sbin/init    2 root       0:00 [kthreadd]    3 root       0:28 [ksoftirqd/0]    5 root       0:00 [kworker/0:0H]    6 root       0:00 [kworker/u2:0]    7 root       0:20 [rcu_preempt]  ...  623 root       0:18 /usr/bin/cm   # ps -T     1 root       1:16 {systemd} /sbin/init    2 root       0:00 [kthreadd]    3 root       0:28 [ksoftirqd/0]    5 root       0:00 [kworker/0:0H]    6 root       0:00 [kworker/u2:0]    7 root       0:20 [rcu_preempt]  ...  623 root       0:18 /usr/bin/cm  624 root       0:00 {f} /usr/bin/cm  625 root       0:00 {m2vh} /usr/bin/cm  626 root       0:00 {m2d} /usr/bin/cm  627 root       0:00 {m2c} /usr/bin/cm  628 root       0:00 {mqp} /usr/bin/cm

• 
  
• chrt(busybox v1.27.2) - get or set scheduling priority and class
  
• get scheduling priority, class of task
  

  #chrt -p 710 pid 710's current scheduling policy: SCHED_RR pid 710's current scheduling priority: 10

• set priority of task
  

# chrt -p 20 710 pid 710's current scheduling policy: SCHED_RR pid 710's current scheduling priority: 10 pid 710's new scheduling policy: SCHED_RR pid 710's new scheduling priority: 20