Wait Buckets

1. Dispatched CPU

2. CPU queueing

3. Reserved

4. Other waits 

(7.2 includes J9 JVM tool thread time)

5. Disk page faults

6. Disk non fault reads

7. Disk space usage contention

8. Disk op-start contention

9. Disk writes

10. Disk other

11. Journaling

12. Semaphore contention

13. Mutex contention

14. Machine level gate serialization

15. Seize contention

16. Database record lock contention

17. Object lock contention

18. Ineligible waits

19. Main storage pool overcommitment

20. 7.2 = Journal Save While Active Time

7.1 = RESERVED

6.1 = Classic JVM user including locks

21. 7.2 = RESERVED

7.1 = JVM Time 

6.1 = Classic JVM

22. 7.2 = RESERVED

7.1 = RESERVED

6.1 = Classic JVM other

23. RESERVED

5.4 = Socket Accepts

24. Socket Transmits

25. Socket Receives

26. Socket other

27. IFS

28. PASE

29. Data queue receives

30. Idle/waiting for work

6.1+ includes Socket Accepts

7.2 Includes J9 JVM thread time

31. Synchronization token contention

32. Abnormal contention

See IBM i on Power - Performance FAQ and Job Waits and iDoctor for IBM i White Paper for more information on Wait Buckets.