System resource usage
This section shows various aspects of general resource usage observed during the measurement interval. Resources quantified here are: CPU time, storage usage, EXCPs, and paging.
| Under heading | This is displayed |
|---|---|
| CPU Time TCB | The number of CPU seconds consumed by all TCBs in the measured region for the duration of the measurement interval. |
| No. of TCBs | The number of TCBs in existence at the time of the last data refresh. |
| CPU Time SRB | The number of CPU seconds consumed in SRB mode in the measured region for the duration of the measurement interval. |
| EXCPs | The number of EXCPs (Execute Channel Program) performed during the measurement interval. |
| Storage Frames | The number of 4K byte page frames (real storage) for virtual storage assigned to the address space at the time of the last data refresh. |
| Data Space Frames | The number of 4K byte page frames (real storage) for Data Space storage assigned to the address space at the time of the last data refresh. |
| Pages in | The number of page in operations performed during the measurement interval. |
| Pages out | The number of page out operations performed during the measurement interval. |