org.netbeans.junit

Class MemoryMeasurement

java.lang.Object

org.netbeans.junit.MemoryMeasurement

public class MemoryMeasurement
extends Object

Class with static methods for measuring memory footprint of a process. Since this class required platform dependent code, there have to be a dll library called 'lib.memory-measurement.win32.dll' present in a home directory of NbJUnit (set by nbjunit.home property in either junit.properties file or present as a system property). Please note, methods available in this class return a system specific values for each supported platforms. The meanings of values are: On Solaris: resident memory size On Linux: VmSize (virtual memory size) On Windows: pagefile usage

Field Summary

Fields

Modifier and Type	Field and Description
static String	IDE_PID_SYSTEM_PROPERTY Name of the system property, which contains PID of running IDE.

Method Summary

Methods

Modifier and Type	Method and Description
static long	getIdeMemoryFootPrint() Gets memory footprint of NetBeans IDE.
static long	getProcessMemoryFootPrint(long pid) Gets memory footprint of a process identified by PID.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

IDE_PID_SYSTEM_PROPERTY

public static final String IDE_PID_SYSTEM_PROPERTY

Name of the system property, which contains PID of running IDE. This property is set by ide executor of XTest framework.

See Also:

Constant Field Values

Method Detail

getIdeMemoryFootPrint

public static long getIdeMemoryFootPrint()
                                  throws MemoryMeasurementFailedException

Gets memory footprint of NetBeans IDE. This methods requires system property 'netbeans.pid' to contain PID of the IDE process.

Returns:

memory size value

Throws:

MemoryMeasurementFailedException - When measurement cannot be performed

getProcessMemoryFootPrint

public static long getProcessMemoryFootPrint(long pid)
                                      throws MemoryMeasurementFailedException

Gets memory footprint of a process identified by PID. On each platform this methods returns a platform specific value.

Parameters:

pid - process identification for the process, which size is to be measured

Returns:

memory size value

Throws:

MemoryMeasurementFailedException - When measurement cannot be performed