Anton Marsden commented on an issue
Hibernate ORM / Improvement HHH-4577
2L query cache: Low performance of flush and commit due many unnecessary (pre)invalidate calls on UpdateTimestampsCache
Analyzing what our application is mainly doing during flush/commit,
we saw that very often the concerning thread is executing in jbosscache stuff (see 2 sample stacktraces below).
Analyzing the code we discovered that, if doing 1000 inserts for a determinate entity:
-on flush UpdateTimestampsCache.preinvalidate() is called 1000 times for the same space ...