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MAXTASK

The MAXTASK report set is useful when a CICSĀ® systems programmer sees a notification that one of the CICS regions has reached the MXT limit specified for the region and wants to know what reports to run to determine the causes of the MXT condition. The MXT limit is the maximum number of user tasks that can exist in a CICS system at the same time.

Based on these reports and analysis, the systems programmer can then consider tuning options as well as further analysis and monitoring.

The MAXTASK report set produces the following reports:

Report Type Default DDNAME Description
Performance list LIST0001 MXT exceeded MAXTASKS Analysis by Task Time
Performance summary SUMM0001 MXT exceeded MAXTASKS Analysis by Time-of-Day
Wait analysis WAIT0001 MXT exceeded analysis
Statistics summary VIRTSTG MXT exceeded Virtual Storage Usage Summary
Statistics summary TRANMNGR MXT exceeded Transaction Manager Global Statistics
Statistics alerts STAL0001 MXT exceeded analysis Alerts (List by APPLID, and Summary by APPLID)

To produce the reports, MAXTASK uses the following components:

Component name Component type Description
MAXTASK alert MXT exceeded analysis alerts. Used by the STAL0001 statistics alert report.
MXTBYTOD form MAXTASKS analysis by time-of-day. Used by the SUMM0001 performance summary report.
MXTBYTSK form MAXTASKS analysis by task time. Used by the LIST0001 performance list report.
TRANMNGR form Transaction manager global. Used by the TRANMNGR statistics summary report.
VIRTSTG form Virtual storage usage summary. Used by the VIRTSTG statistics summary report.
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