How to monitor the Java memory usage in matlab?

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denzil fernandes 2016-4-1

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https://ww2.mathworks.cn/matlabcentral/answers/276490-how-to-monitor-the-java-memory-usage-in-matlab

评论： Walter Roberson 2016-4-5

I have few java libraries which gets dynamically bounded to matlab at run time. Is it possible to know the memory usage of the Java libraries using matlab interface.

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Answer 1

Dave Behera 2016-4-4

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https://ww2.mathworks.cn/matlabcentral/answers/276490-how-to-monitor-the-java-memory-usage-in-matlab#answer_216373

Take a look at this link:

http://www.mathworks.com/matlabcentral/answers/95990-how-can-i-monitor-matlab-s-jvm-heap-memory-usage

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denzil fernandes 2016-4-5

Hi, I just wanted to know how the following commands would help.

rJavaObj = java.lang.Runtime.getRuntime;

rJavaObj.freeMemory

rJavaObj.totalMemory

rJavaObj.maxMemory

Will these commands help me in finding the memory used by my java instance at that particular time or please could you let me know what do these commands return exactly.

Walter Roberson 2016-4-5

If java has the memory allocated to it (totalMemory) but java is not currently using the memory for any object (freeMemory) then do you want to include it in the amount of memory that java is "using" for your purpose?

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