WebServer/AppServer System Environment:
Weblogic Server 12c
Tuxedo 12.1.1.0, 64bit, Patch Level 071
PeopleSoft PeopleTools 8.54.20
PeopleSoft Enterprise Customer Relationship Management 9.2
Red Hat Enterprise Linux Server release 6.7 (Santiago)
Database System Environment:
    Oracle DataBase 12c
    AIX 7.1
Problem:
Expriencing very poor performance each time appserver cache is cleared. May take 50+seconds to open the case page.
Also implemented PreloadCache but still facing performance issues. Following parameters for cache settings have set for all appserver domains:
[Cache Settings]
MaxCacheMemory=0
PreloadCache=PRELOAD_CACHE_PRJ
EnableCacheRepair=Y
AdjustMaxCacheMem=5
ExcessivePruningThreshold=80
CacheMissThreshold=5
MaxRepairCollection=5
Otherwise, each appserver domain has 12 appserver processes that may have different cache, may sometime cause poor performance when change to another process.
Please help!!