Gerry Borja wrote:
I have been monitoring our single CICS region which has been hitting the
single TCB limit lately. I have checked the WLM service class report and
found out that APPL% was beyond 100% (up to 120-130%) during peak period. My
question is how come the RMF and the monitoring tool (TMON) are reporting it
to be more than 100% when this CICS region can only use one CP? How to
interpret this? 20-30% waiting/queueing to execute?
Thanks in advance,
Gerry
CICS has 3 TCB's (as long as you are not running applications in thread
safe mode, in which case it can have more).
I beleive that:
One for user dispatched work.
One for VSAM I/O.
One for CICS system stuff.
Also, if you are CICS TS2.2 or newer (I think it is 2.2) there is a 4th
TCB for DB2 work. I know in one level of CICS TS that DB2 workload
moved off to new TCB(s).
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