How to view the current heap size that an application is using?

by

Use this code:

// Get current size of heap in bytes
long heapSize = Runtime.getRuntime().totalMemory(); 

// Get maximum size of heap in bytes. The heap cannot grow beyond this size.// Any attempt will result in an OutOfMemoryException.
long heapMaxSize = Runtime.getRuntime().maxMemory();

 // Get amount of free memory within the heap in bytes. This size will increase // after garbage collection and decrease as new objects are created.
long heapFreeSize = Runtime.getRuntime().freeMemory();

It was useful to me to know it.

More Related Contents:

  1. java.lang.OutOfMemoryError: Java heap space with NetBeans
  2. best Java code to control big heap memeory used (like 1G) [closed]
  3. Java and NetBeans: Cannot run code from the compiled file
  4. How to open a Project in NetBeans
  5. How to deal with “java.lang.OutOfMemoryError: Java heap space” error?
  6. Recommendations for a heap analysis tool for Java? [closed]
  7. How to correctly get image from ‘Resources’ folder in NetBeans
  8. How to wire one pane to another
  9. “Uncompilable source code” RuntimeException in netbeans
  10. Logging not showing
  11. Is a Java array of primitives stored in stack or heap?
  12. increase the java heap size permanently?
  13. Deployment error:Starting of Tomcat failed, the server port 8080 is already in use
  14. How to UnFocus a JTextField
  15. Netbeans – Error: Could not find or load main class
  16. Valid JAR signature for JavaFX projects
  17. What is the largest possible heap size with a 64-bit JVM?
  18. Starting of Tomcat failed from Netbeans
  19. How do I set Java’s min and max heap size through environment variables?
  20. Netbeans – Build targetting JDK 6 but run using Java 7 JRE
  21. How to setup Main class in manifest file in jar produced by NetBeans project
  22. Where is Visual Web Editor for JavaServer Faces on Netbeans
  23. When running the program in netBeans the font looks extremely weird
  24. giving ‘java.library.path’ in netbeans for .dll/.so files
  25. How do I give Jenkins more heap space when it’s running as a daemon on Ubuntu?
  26. How to change executable jar file icon?
  27. How to include custom panel with NetBeans GUI Builder?
  28. Steps in the memory allocation process for Java objects
  29. Is it possible see all the references to an object in execution time?
  30. Java heap space in netbeans.. but I’ve increased the heap size already!

Leave a Comment