[
Date Prev][
Date Next][
Thread Prev][
Thread Next][
Date Index][
Thread Index]
[
List Home]
|
[platform-core-dev] How much memory can a Workspace take?
|
Hi fellow
committers,
I got a report about an OutOfMemoryError
generated during a Workspace Refresh operation. When looking at
the .hprof file with the MemoryAnalyzer, it turned out that pretty much all the memory was taken by
core/Workspace only:
- 100 MB (53%) in org.eclipse.core.internal.resources.Workspace (occupied by ElementTree)
- 52 MB (27%) in org.eclipse.core.internal.dtree.DeltaDataTree (this is a different additional
DeltaDataTree)
- 37 MB all the rest
The workspace was arguably very large, but still I am surprised
- that the numbers are that large
- that in addition to the Workspace,
there is such a large additional DeltaDataTree,
- that I see an OutOfMemoryError reported
with 189MB total where I used -vmargs -Xmx320m ... what happened to the extra
131MB ?
Do my numbers sound
reasonable, or could there be a bug that leads the Workspace to take an
excessive amount of memory? How much memory do we expect a workspace to take
for, say 50000 files? How much *additional* memory may a
workspace delta take that is generated during a Refresh? Would any additional
investigation using the Coretools make sense at this point?
I can make the .hprof
file available on request (it's a 200MB ZIP file).
Many thanks for any
pointers!
Cheers,
--
Martin Oberhuber, Senior Member of Technical
Staff, Wind River
Target Management Project
Lead, DSDP PMC Member
