Consider Java VisualVM, jvisualvm, included with the JDK. A pathologic Swing program is examined here . For a more recent perspective, see the Monitoring and Management Guide: Using JConsole regarding jconsole , also included with the JDK.

What a confusing mess. The MemoryAnalyzer.ini is not where it is supposed to be and even if you move it from Eclipse to MacOS the mods do not "take". All this to help nudge MAT to not run out of memory when it is trying to analyze a java heap which ran out of memory. My java hprof is 1.7GB and I am running on MacOS 10.15.7 Catalina.

VisualVM is used for live monitoring and dump heap. You can also analyze the heap dumps there with great power, however MAT have more capabilities (such as automatic analysis to find leaks) and therefore, I read the VisualVM dump output (.hprof file) into MAT.

Oct 9, 2008 · Obtaining Heap Allocation Profile. Shows allocation for various parts of the program $ java -agentlib:hprof=heap=sites ToBeProfiledClass HPROF Help $ java -agentlib:hprof=help The files are usually large and docs recommend JHAT for visualizing the outputs of the heap dump (Also mentioned above). Can figure out what parts of your program are ...

Sep 21, 2020 · Thus analyzing heap dump of 35-40 gb in local system is almost impossible. Configure MAT in your remote unix server having enough RAM ( > 35-40GB). And run it using command line. (GUI is always slower than command line anyway.) Assigning 8GB-10GB wont work. So Better to increase the heap assigned to java process.-vmargs -Xms40g -Xmx40g

Jun 1, 2011 · Then transfer to your server and unpack. Then determine how large the heap dump is and, if necessary, modify the MemoryAnalyzer.ini file to instantiate a JVM with enough RAM for your heap dump. In this example, I have an 11GB heap …

Sep 18, 2012 · Select the appropriate heap dump from the list; Interpreting results. Class Name: The class that is instantiated in the application, taking up memory. Objects: The count of how many instances of the class are present above or below the other heap dump. Shallow Heap: The number of bytes the given class is taking up in memory above or below the ...

Sep 17, 2016 · You could also have a look to Eclipse Memory Analyzer also know as MAT that will be able to analyze your heap dump and propose potential causes of your memory leak as you can see in this video (you can find more information about the Suspect Report here). Another way could be to use Java Flight Recorder by applying this approach.

Mar 7, 2017 · This happens due to that the default heap size is smaller than needed by the dump size to be loaded, to resolve this, you need to set the VM args Xms, and XmX with the right values, below is what worked for me: "<JAVA_PATH>\Java.exe" -Xms256m -Xmx6144m -jar <HEAP_ANALYSER_NAME>.jar I hope that helps, I know it is a bit late response :)

Solution for same issue for Memory Analyzer plugin in Eclipse in MAC OS X El Capitan. I was facing the same issue but with the eclipse plugin and I did not have any Memory Analyzer App in Applications Folder. The solution which worked for me was: Right Click on Eclipse icon and select Show Package Content. Go to Contents>Eclipse; Open Eclipse.ini