Unless /CLASS(NODEF,PROCESS) and/or /IDENTIFICATION is specified with the ADVISE COLLECT REPORT SYSTEM_PC command, this statistics page is always present. Use of the /IDENTIFICATION qualifier produces a similar report page that pertains to a specific process rather than the Interrupt Stack (see the next section).
The example labeled “CPU Utilization by IPL for Interrupt Stack” shows an example of this output, which is the fourth section of the system-wide PC data report. This section of the report presents a breakdown of percentage CPU time spent at each Interrupt Priority Level (IPL) while on the Interrupt Stack. There is no Process Context while on the Interrupt Stack. Percentages are shown in both numerical and graphical format.
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