SYSVIEW 15.0 & 16.0 - z/OS supported releases -
1. Check that SYSVIEW, SYSVUSER and SYSVAUX are running in a SYSSTC service class (Srvclass).
2. About CPU performance, apply these PTFs to SYSVIEW 16.0:
APAR #: SO13072 (Title: E-CSA OVERLAY AFTER DYNAMIC CPU ADD)
APAR #: SO10680 (Title: Z15 BOOST, ADDRESS SPACE LAYOUT RANDOMIZATION, DASD MODELS)
APAR #: SO10588 (Title: INCORRECT JOB CPU REPORTING AFTER SYSTEM RECOVERY BOOST)
APAR #: SO09537 (Title: INCREASED CPU USAGE WHEN MSU-4HOUR-GROUP IS YES)