Java Utililty Methods Memory Used

List of utility methods to do Memory Used

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Description

The list of methods to do Memory Used are organized into topic(s).

Method

intgetUsedMemory()
Returns the current amount of memory (in MB) this JVM is using. 
return getAllocatedMemory() - getFreeMemory();
longgetUsedMemory()
get Used Memory 
Runtime rt = Runtime.getRuntime();
long usedMB = (rt.totalMemory() - rt.freeMemory()) / 1024 / 1024;
return usedMB;
longgetUsedMemory()
get Used Memory 
Runtime runtime = Runtime.getRuntime();
return runtime.totalMemory() - runtime.freeMemory();
longgetUsedMemory()
get Used Memory 
final Runtime runtime = Runtime.getRuntime();
final long freeBytes = runtime.freeMemory();
final long totalBytes = runtime.totalMemory();
return totalBytes - freeBytes;
longgetUsedMemory()
get Used Memory 
return (getMaxMemory() - getFreeMemory());
intgetUsedMemory()
get Used Memory 
return (int) (Runtime.getRuntime().totalMemory() / 1024);
StringgetUsedMemory()
Returns a string which describes the amount of memory currently used by the JVM heap. 
final Runtime runtime = Runtime.getRuntime();
return "Used memory: " + String.valueOf((runtime.totalMemory() - runtime.freeMemory()) / MEGA) + " MB";
doublegetUsedMemory()
Gets the memory used by the JVM in MB. 
Runtime rt = Runtime.getRuntime();
long memLong = rt.totalMemory() - rt.freeMemory();
double memDouble = memLong / (1024.0 * 1024.0);
memDouble = Math.round(memDouble * 100) / 100.0;
return memDouble;
longgetUsedMemory()
get Used Memory 
return Runtime.getRuntime().totalMemory() - Runtime.getRuntime().freeMemory();
longgetUsedMemory()
Return the number of memory bytes used, which is computed by subtracting the 'free' memory from 'total' memory. 
long total = Runtime.getRuntime().totalMemory();
long free = Runtime.getRuntime().freeMemory();
return total - free;