Monday, September 19, 2016

How to install and run eclipse Memory Analyzer MAT on windows 64 bit


1. Download the tool from http://www.eclipse.org/mat/downloads.php
select Windows (x86_64) for windows 64 bit OS.
2. Unzip the folder and go to "MemoryAnalyzer-1.6.0.20160531-win32.win32.x86_64\mat" folder
3. Now download a 64 bit jdk for windows, which can be found at http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html
4. Accept the license and choose exe of x64
Windows x64    193.68 MB      jdk-8u101-windows-x64.exe
5. Install the exe to any desired path, i have installed it under
C:\Program Files\Java\jdk1.8.0_101\bin
6. Now go back to "MemoryAnalyzer-1.6.0.20160531-win32.win32.x86_64\mat" folder and edit
MemoryAnalyzer.ini file
7. add a -vm at the bottom and place the path of newly installed jdk as shown below (ensure there are no spaces)
8. add a xmx argument as well to increase footprint on RAM, 12GB should suffice.

-startup
plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar
--launcher.library
plugins/org.eclipse.equinox.launcher.win32.win32.x86_64_1.1.300.v20150602-1417
-vm
C:\Program Files\Java\jdk1.8.0_101\bin\javaw.exe
-vmargs
-Xmx12288m


 9. save the ini file and open the MemoryAnalyzer.exe
10. Close out outlook, antivirus and all open folders to save memory. 
11. file - open heap dump - file type make it "all files", select the heapdump and click open.

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