com.sleepycat.utilint

Class LatencyStat

java.lang.Object

com.sleepycat.utilint.LatencyStat

All Implemented Interfaces:

Cloneable

public class LatencyStat
extends Object
implements Cloneable

A stat that keeps track of latency in milliseconds and presents average, min, max, 95th and 99th percentile values.

Constructor Summary

Constructors

Constructor and Description
LatencyStat(long maxTrackedLatencyMillis)

Method Summary

Modifier and Type	Method and Description
Latency	calculate() Generate the min, max, avg, 95th and 99th percentile for the collected measurements.
Latency	calculateAndClear() Generate the min, max, avg, 95th and 99th percentile for the collected measurements, then clear the measurement collection.
void	clear()
boolean	isEmpty()
void	set(int numRecordedOps, long nanoLatency) Record "numRecordedOps" (one or more) operations that took place in a single request of "nanoLatency" nanos.
void	set(long nanoLatency) Record a single operation that took place in a request of "nanolatency" nanos.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

LatencyStat

public LatencyStat(long maxTrackedLatencyMillis)

Method Detail

clear

public void clear()

calculate

public Latency calculate()

Generate the min, max, avg, 95th and 99th percentile for the collected measurements. Do not clear the measurement collection.

calculateAndClear

public Latency calculateAndClear()

Generate the min, max, avg, 95th and 99th percentile for the collected measurements, then clear the measurement collection.

set

public void set(long nanoLatency)

Record a single operation that took place in a request of "nanolatency" nanos.

set

public void set(int numRecordedOps,
                long nanoLatency)

Record "numRecordedOps" (one or more) operations that took place in a single request of "nanoLatency" nanos.

isEmpty

public boolean isEmpty()

toString

public String toString()

Overrides:

toString in class Object