YGC time increasing suddenly
Luciano Molinari
lucmolinari at gmail.com
Sat Dec 21 08:15:45 PST 2013
Hi Srinivas,
Yes, I agree with you that the behaviour is really awkward. I captured some
heap dumps and imported them in Eclipse Mat, but using the option "Keep
unreachable objects". The objects that use most of the space are Strings
and some Hibernate objects (mainly org.hibernate.engine.query.
NativeSQLQueryPlan).
I'll try to change -XX:StringTableSize parameter to check if I have better
results. I noticed that many Strings in the heap are equals..shouldn't JVM keep
only different Strings and re-use the equals?
Regarding hibernate, I have some native queries where I can use native JDBC,
although I really don't know how much this will help.
What do you mean by "promotion census tool"?
I'll also run a test increasing Heap Space and NewSize.
Thanks again.
Regards,
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