How is the Java measure memory usage given method?

Question

I need to measure memory usage some sort of method. I can get Heap and nonHeap Memory size using mxBean.getHeapMemoryUsage and mxBean.getNonHeapMemoryUsage.

My question is how do we caclulate memory usage in specific method execution? (Only consider HeapMemory or both)

Very little of this makes sense, and your final sentence is self-contradictory. — user207421, Oct 07 '14 at 07:56
calculate the memory consumed by local variable used in method. — Braj, Oct 07 '14 at 08:00
Yes, I asked I can measure memory usage getting difference between HeapMemeory or do I have to consider Heap and nonHeap? — Damith Ganegoda, Oct 07 '14 at 09:18

score 2 · Answer 1 · edited May 23 '17 at 12:05

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You should consider only HeapMemory and not NonHeapMemoryUsage. NonHeapMemory is where Java Virtual machine keeps method codes and classes byteCode stuffs.

Here is helpful link get OS-level system information

Note: you should consider stack memory as well, but that is very less compare to heap memory used by methods or class objects.

edited May 23 '17 at 12:05

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answered Oct 07 '14 at 07:57

Sushant Tambare

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How is the Java measure memory usage given method?

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