Hi there,
i have some memory leaking problem that i want to drag down, because it
gets the critical issue for my application.
It's actually very critical, since the the application will run as an
applet using the java plugin. And i got an avarage leak of 2 MB
per page reload, which causes a the netscape/ie memory explosion in the
task manager after few reloads.
Especially i hope that some sun people could have close contact with me
to evaluate the leak.
to summarize my experiences so far:
1) i'm aware of bug 4395735 (Memory leak with jdk 1.3 HotSpot compilers)
and it seems that this bug could be the reason for my leak;
still i'm not sure if it's not some other problem. The memory
leakage also occures, when not using the hotspot VM (in OptimizeIt)
2) i use OptimizeIt to kick the leak, but the tool shows constant
virtual machine heap size, while the overall application memory in the
taskmanager incraesed.
i really emphased decoupling of the objects to ease the job of the
garbage collector. it seems that from the virtual machine side
everything
is fine, but the garbage collected memory is not freed. Or some
external memory (of native code) is not freed. That would point to a
Java3D memory issue in the native dlls. I found the bug 4425216 (GC
failing to reclaim unrefrenced memory after a LONG time....no
memory leak) which sounds quite (except for the LONG) the same.
What are the tools to use? Is there memory profiler/monitor for NT4.0
that is known to be useful for this issue.
What are the first steps in evaluating a memory leak. Do you follow a
find-memory-leak-cause-best-practice-rule-set?
I'm not quite sure if I completely understood the first bug mentioned.
Do I have to compile my java code with a certain VM target set or do i
just
have to use a non-hotspot VM for running the app?
Any help appreciated!!
Cheers,
Karsten
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