In IDB2 selecting active threads using wildcard Db* for ssid encounters severe degredation, and when finally resolved only shows the primary ssid. This also applies when in option 1 system statistics when selecting ds group.
The cause of the degradation is unknown. However, the DC tasks had not been cycled for a while.
Release : 20.0
Component : CA SYSVIEW Performance Management Option for DB2 for z/OS