edu.umass.cs.utils

Class DelayProfiler

java.lang.Object

edu.umass.cs.utils.DelayProfiler

public class DelayProfiler
extends java.lang.Object

Author:

V. Arun

Constructor Summary

Constructors

Constructor and Description
DelayProfiler()

Method Summary

Modifier and Type	Method and Description
static void	clear()
static void	disable() Will disable instrumentation (true by default).
static double	get(java.lang.String field)
static double	getRate(java.lang.String field)
static java.lang.String	getStats()
static java.lang.String	getStats(java.util.Set<java.lang.String> fields)
static java.lang.Object	getStatsLog()
static double	getThroughput(java.lang.String field)
static boolean	register(java.lang.String field, java.util.concurrent.ConcurrentMap<java.lang.String,java.lang.Double> map)
static void	updateCount(java.lang.String field, int incr)
static void	updateDelay(java.lang.String field, double time)
static void	updateDelay(java.lang.String field, double time, double alpha)
static void	updateDelay(java.lang.String field, long time, int n)
static void	updateDelayNano(java.lang.String field, double time)
static void	updateDelayNano(java.lang.String field, long time, int n)
static void	updateInterArrivalTime(java.lang.String field, int numArrivals)
static void	updateInterArrivalTime(java.lang.String field, int numArrivals, int samplingFactor)
static void	updateInterArrivalTime(java.lang.String field, int numArrivals, int samplingFactor, double alpha)
static void	updateMovAvg(java.lang.String field, double sample)
static void	updateMovAvg(java.lang.String field, double sample, double alpha)
static void	updateRate(java.lang.String field, int numArrivals)
static void	updateRate(java.lang.String field, int numArrivals, int samplingFactor)
static void	updateValue(java.lang.String field, double value)

Methods inherited from class java.lang.Object

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

Constructor Detail

DelayProfiler

public DelayProfiler()

Method Detail

disable

public static void disable()

Will disable instrumentation (true by default).

register

public static boolean register(java.lang.String field,
                               java.util.concurrent.ConcurrentMap<java.lang.String,java.lang.Double> map)

Parameters:

field -

map -

Returns:

True if inserted.

updateDelay

public static void updateDelay(java.lang.String field,
                               double time,
                               double alpha)

Parameters:

field -

time -

alpha -

updateDelay

public static void updateDelay(java.lang.String field,
                               double time)

Parameters:

field -

time -

updateDelayNano

public static void updateDelayNano(java.lang.String field,
                                   double time)

Parameters:

field -

time -

updateDelayNano

public static void updateDelayNano(java.lang.String field,
                                   long time,
                                   int n)

Parameters:

field -

time -

n -

updateDelay

public static void updateDelay(java.lang.String field,
                               long time,
                               int n)

Parameters:

field -

time -

n -

get

public static double get(java.lang.String field)

Parameters:

field -

Returns:

The delay.

updateMovAvg

public static void updateMovAvg(java.lang.String field,
                                double sample)

Parameters:

field -

sample -

updateMovAvg

public static void updateMovAvg(java.lang.String field,
                                double sample,
                                double alpha)

Parameters:

field -

sample -

alpha -

updateCount

public static void updateCount(java.lang.String field,
                               int incr)

Parameters:

field -

incr -

updateValue

public static void updateValue(java.lang.String field,
                               double value)

Parameters:

field -

value -

updateInterArrivalTime

public static void updateInterArrivalTime(java.lang.String field,
                                          int numArrivals,
                                          int samplingFactor)

Parameters:

field -

numArrivals -

samplingFactor -

updateInterArrivalTime

public static void updateInterArrivalTime(java.lang.String field,
                                          int numArrivals,
                                          int samplingFactor,
                                          double alpha)

Parameters:

field -

numArrivals -

samplingFactor -

alpha -

updateInterArrivalTime

public static void updateInterArrivalTime(java.lang.String field,
                                          int numArrivals)

Parameters:

field -

numArrivals -

updateRate

public static void updateRate(java.lang.String field,
                              int numArrivals,
                              int samplingFactor)

Parameters:

field -

numArrivals -

samplingFactor -

updateRate

public static void updateRate(java.lang.String field,
                              int numArrivals)

Parameters:

field -

numArrivals -

getThroughput

public static double getThroughput(java.lang.String field)

Parameters:

field -

Returns:

Throughput calculated from interarrival time.

getRate

public static double getRate(java.lang.String field)

Parameters:

field -

Returns:

Moving average of instantaneous rate.

getStats

public static java.lang.String getStats()

Returns:

Statistics as a string.

getStatsLog

public static java.lang.Object getStatsLog()

Returns:

Statistics as object for logging.

getStats

public static java.lang.String getStats(java.util.Set<java.lang.String> fields)

Parameters:

fields -

Returns:

Statistics as a string for fields in fields.

clear

public static void clear()