how calculate size of objects in memory from ObjectGraphMeasure.measure method result from Caliper libraryin java?

Asked May 12 '18 at 23:02

Active May 12 '18 at 23:02

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i want to calculate size of objects in netbeans, i try to use

long freeMem = Runtime.getRuntime().freeMemory();
long totalMem = Runtime.getRuntime().totalMemory();

but i notice that the result of this method change every time i run project, then try to use Caliper library and use ObjectGraphMeasure.measure method that result :

Objects=270813, NonNullRefs=353968, NullRefs=1016731, Primitives=[int x 388091, double x 4375548, long x 2609976, boolean x 6398, float x 76765, char x 66658]

i want the size of object in bytes.

asked May 12 '18 at 23:02

Shereen saleh

Check the following tool: https://github.com/dweiss/java-sizeof – lexicore May 12 '18 at 23:18
See also: https://stackoverflow.com/questions/52353/in-java-what-is-the-best-way-to-determine-the-size-of-an-object/40764295#40764295 – lexicore May 12 '18 at 23:18

how calculate size of objects in memory from ObjectGraphMeasure.measure method result from Caliper libraryin java?

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