CA IDMS Version 18.0 includes the following enhancements to zIIP CPU time reporting:
As computer speeds increase, capturing CPU times with a precision of 10000th of a second no longer provides sufficient accuracy for many purposes. To address this issue, CPU times are now captured and recorded in the Time Of Day (TOD) format. The actual usable precision is model dependent, but is never less than microseconds. This precision provides the accuracy needed for meaningful chargeback and performance analysis.
System mode CPU time is now separated into the following categories:
Segregating CPU time into these categories lets you use different chargeback rates for billing purposes. Additionally, you can use the statistics for time spent on CP because no zIIP is available for planning purposes; a high value indicates the need for additional zIIP processors.
A new DC extended statistics section has been added to the statistics control blocks described by the #TSTDS, #STRDS and #TSBDS DSECTs. For upward compatibility, all fields that existed in prior releases remain unchanged. Statistics records written to the log and SMF by CA IDMS, CA IDMS Task Analyzer and CA IDMS Performance Monitor contain the new extension.
Application programs can retrieve the DC extended statistics using the following enhanced DML statements:
The following reporting facilities now show times in units of microseconds and, in many cases, also display zIIP time separately:
A new OPER WATCH CPU command reports CPU usage for active tasks in microseconds, with automatic scaling to display the most significant digits. For more information, see OPER Enhancements.
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