Monitoring the use of JVM profiles

You can use the EXEC CICS INQUIRE JVMPROFILE command in browse mode to find out what JVM profiles have been used in this CICS execution. INQUIRE JVMPROFILE only finds JVM profiles that have been used during the lifetime of the CICS region. The command returns each 8–character JVM profile name, as used in a PROGRAM resource definition, and the full path name of the HFS file for that JVM profile. (Note that there is no CEMT equivalent for this command.) The command also tells you whether or not JVMs with that profile use the shared class cache.

You can collect statistics for JVM profiles by using the EXEC CICS COLLECT STATISTICS command, or the CEMT PERFORM STATISTICS command, with the JVMPROFILE option. The statistics are broken down by JVM profile and execution key, and they show, among other things: “Interpreting JVM statistics” in the CICS® Performance Guide has more information about JVM statistics, and tells you how to find the full listings and reports for these statistics.