edu.vt.marian.common
Class Measurement

java.lang.Object
  |
  +--edu.vt.marian.common.Measurement

public class Measurement

extends java.lang.Object

Used to measure system performance, this can be used mutiple times. It will caculate the average, and dump all the results to a file in human readable format.

Field Summary

static int	OK possible return values of methods
static int	WRONG_STATE

Constructor Summary

Measurement(java.lang.String des)
this constructor will create a PerformanceMeasurement object, there is no Measurement at this time

Method Summary

int	end(long time) this method will record a start time for the measurement specified by the parameter measurement_id
int	start(long time) this will add a new measurement into this object, the return value is the id of this measurement and can be used to do measure later
int	to_stream(java.io.PrintWriter pw) this method will record a end time for the specified measurement_id

Methods inherited from class java.lang.Object

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

Field Detail

OK

public static final int OK

possible return values of methods

WRONG_STATE

public static final int WRONG_STATE

Constructor Detail

Measurement

public Measurement(java.lang.String des)

this constructor will create a PerformanceMeasurement object, there is no Measurement at this time

Method Detail

start

public int start(long time)

this will add a new measurement into this object, the return value is the id of this measurement and can be used to do measure later

end

public int end(long time)

this method will record a start time for the measurement specified by the parameter measurement_id

to_stream

public int to_stream(java.io.PrintWriter pw)

this method will record a end time for the specified measurement_id