Application Performance Analyzer for z/OS, Version 11.1, User's Guide

Variances

A percentage value is displayed under the heading "Variance" in various segments of this report. Its value quantifies the variance between a particular performance figure for the compared measurement and the corresponding value for the base measurement. A plus (+) value indicates a higher value than the base measurement and a minus (-) value indicates a lower value. The value is the percentage by which the compared measurement figure exceeds (+) or is less than (-) the corresponding base measurement value. Any value exceeding 999 percent is reported as "999%." The magnitude of the value is also represented graphically by a string of greater-than or less-than symbols.

SQL calls sampled

This report segment displays the subsystem name and version of the CICS® subsystem being used, and compares the number of calls sampled during the measurement sessions.

SQL observations

This report segment compares the number of samples taken while an SQL call was in-flight.

SQL calls executed

This report segment compares the number of calls executed during the sample based on the REQCT count for the active threads.

Avg SQL call rate

This report segment compares average SQL call rate per second.

SQL calls counted

This report segment compares the number of calls counted by the DB2+ intercept during sampling. This segment is displayed for measurements with the DB2+ extractor active.

SQL throughput

This report segment compares the throughput rate of the samples based on the number of calls made during the time that SQL was active in the sample.

SQL service time

This report segment compares the total service time of the samples while an SQL call was active. This segment is displayed for measurements with the DB2+ extractor active.

SQL call max time

This report segment compares the highest service time for an SQL call. This segment is displayed for measurements with the DB2+ extractor active.

SQL call min time

This report segment compares the lowest service time for an SQL call. This segment is displayed for measurements with the DB2+ extractor active.

SQL CPU time

This report segment compares the total CPU time used to process SQL calls. This segment is displayed for measurements with the DB2+ extractor active.

SQL call max CPU

This report segment compares the highest CPU time for an SQL call. This segment is displayed for measurements with the DB2+ extractor active.

SQL call min CPU

This report segment compares the lowest CPU time for an SQL call. This segment is displayed for measurements with the DB2+ extractor active.




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