MVS TCB Summary workspace
The TCB Summary workspace compares the CICS and non-CICS use of the TCBs
in your system. If your z/OS system is running slowly, this can be caused
by heavy use of a non-CICS resource.
The predefined z/OS TCB Summary workspace contains the following views:
- Address Space Memory Allocation bar chart: This
provides a comparison between the CICS and non-CICS TCB both above and below
the 16 MB line.
- Address Space CPU Utilization pie chart: This compares
the CPU usage of CICS TCBs with non-CICS TCBs.
- MVS Task Control Block Summary table view: shows
the name, address space CPU time, address space SRB time of each TCB. It includes
the amount of CPU time and SRB time since reset. The remainder of the table
allows you to compare CICS and non-CICS TCB usage.
- MVS TCB Details table view: shows the name and the
address of each TCB, whether it is a CICS TCB, below or above the 16-megabyte
line, the transactions being run in the TCB, the current task number and the
CPU time. In addition it shows the relationships between the TCBs.
See also: