Hi Francis, Did you have a specific reason to get the heap dump using code? You should be able to acquire a Heap dump (hprof) from within MAT using File > Acquire heap dump. VisualVm also can do that I believe (right-click on process?). There is also the jmap command that can output a heap dump. Just to save you some time for next time ;)
Marc-Andre ________________________________ From: linuxtools-dev-boun...@eclipse.org [linuxtools-dev-boun...@eclipse.org] on behalf of Francis Giraldeau [francis.girald...@gmail.com] Sent: Wednesday, August 06 2014 11:15 AM To: Linux Tools developer discussions Subject: [linuxtools-dev] Memory usage of TmfExperiment I used Eclipse Memory Analyzer (MAT) to find the object holding a reference to a large temporary chunk of memory. It appears that TmfExperiment is not AutoClosable as other traces, and calling dispose() method on the experiment solved the issue. (Whole story: http://multivax.blogspot.ca/2014/08/pinpoint-memory-usage-of-java-program.html ) For the debugging, I needed the HeapDump class. However, I could not find it in other linuxtools plug-ins, and I don't know how to search for that class in p2 repo, such as Orbit. I think that would be very helpful to have it in the class path. Here is the slightly modified version I have: https://github.com/giraldeau/org.eclipse.linuxtools/blob/graph/lttng/org.eclipse.linuxtools.tmf.analysis.graph.core.tests/src/org/eclipse/linuxtools/tmf/analysis/graph/core/tests/staging/HeapDump.java Cheers, Francis
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