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

longgetUsedMemory()
get Used Memory 
gc();
long totalMemory = Runtime.getRuntime().totalMemory();
gc();
long freeMemory = Runtime.getRuntime().freeMemory();
long usedMemory = totalMemory - freeMemory;
return usedMemory;
doublegetUsedMemoryInMb()
get Used Memory In Mb 
return getTotalMemoryInMb() - getFreeMemoryInMb();
intgetUsedMemoryInMegabytes()
get Used Memory In Megabytes 
long usedMemory = Runtime.getRuntime().totalMemory();
int sizeInMegaBytes = (int) (usedMemory / BYTES_IN_1_MEGABYTE);
return sizeInMegaBytes;
doublegetUsedMemoryMBs()
get Used Memory M Bs 
Runtime runtime = Runtime.getRuntime();
long memory = runtime.totalMemory() - runtime.freeMemory();
return memory / 1024.0 / 1024.0;
intgetUsedMemoryMegaBytes()
get Used Memory Mega Bytes 
return (int) (getUsedMemoryBytes() / 1024 / 1024);
StringgetUsedMemoryStr()
get Used Memory Str 
long totalMem = Runtime.getRuntime().totalMemory();
long freeMem = Runtime.getRuntime().freeMemory();
return bytesToString(totalMem - freeMem);
StringjvmInUseMemory(String size, Boolean txtByte)
Obtain JVM's In Use Memory. 
return convertByteSize(Runtime.getRuntime().totalMemory() - Runtime.getRuntime().freeMemory(), size,
        txtByte);
longmakeUsedPhysicalMemoryData(long systemPhysicalMaxValue, long systemPhysicalFreeValue)
make Used Physical Memory Data 
long systemPhysicalUsedValue = systemPhysicalMaxValue - systemPhysicalFreeValue;
return systemPhysicalUsedValue;
longmeasureMemoryUse()
Measure memory used by the VM. 
System.gc();
Thread.sleep(2000);
System.gc();
return Runtime.getRuntime().totalMemory() - Runtime.getRuntime().freeMemory();
longmemoryUsed()
memory Used 
long mem = 0;
for (int i = 0; i < 10; i++)
    mem += memoryTotal() - memoryFree();
mem /= 10;
return mem;