The most common use of the aps utility is to list the partitions and the CPU time they're using. To do this, use the aps show command:
$ aps show
+-------- CPU Time -------+-- Critical Time --
Partition name id | Budget | Max | Used | Budget | Used
--------------------+-------------------------+-------------------
System 0 | 60% | 100% | 36.24% | 100ms | 0.000ms
partitionA 1 | 20% | 100% | 2.11% | 0ms | 0.000ms
partitionB 2 | 20% | 100% | 1.98% | 0ms | 0.000ms
--------------------+-------------------------+-------------------
Total | 100% | | 40.33% |
If you want to display the output of the aps show command every 5 seconds, use the -l option in the command as in aps show -l. You can also use the -d option to change the length of the delay of the output results.
For more information about the aps utility, see the Utilities Reference.