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Oracle® Coherence Java API Reference
v3.5.3
E15583-01
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## com.tangosol.net
Class DatagramTest.PacketTracker

    java.lang.Object
      com.tangosol.net.DatagramTest.PacketTracker

Enclosing class:
  DatagramTest

    protected static class DatagramTest.PacketTracker

extends java.lang.Object

Tracker of packet statistics for a single client.

Field Summary
`protected java.net.SocketAddress` | `m_addrSender`
`protected AtomicCounter` | `m_atomicAckOut`
`protected long` | `m_cAcksIn`
`protected long` | `m_cBytesReceived`
`protected long` | `m_cGapMillis`
`protected long` | `m_cGapPackets`
`protected long` | `m_cGaps`
`protected int` | `m_cOutOfOrder`
`protected int` | `m_cPacketsRcvd`
`protected long` | `m_cTotalOutOfOrderOffset`
`protected long` | `m_lDeltaRttNanos`
`protected long` | `m_lLastPacketArrivalTime`
`protected long` | `m_lStartTime`
`protected int` | `m_nMax`
`protected int` | `m_nMin`
`protected int` | `m_nNext`

Constructor Summary
`DatagramTest.PacketTracker(java.net.SocketAddress addrSender)` Construct a PacketTracker for the given client.

Method Summary
`long` | `computeAverageOutOfOrderOffset()` Compute the average out of order offset for packets which arrived out of order.
`int` | `computeAveragePacketSize()` Compute average packet size.
`long` | `computeDurationMillis()` Return the duration this tracker has been accumulating data for.
`int` | `computeMissingPackets()` Compute the number of missing packets.
`long` | `computeRttNanos()` Return the average round trip time of a packet in milliseconds.
`int` | `computeSentPackets()` Compute the number of packets sent by the publisher.
`float` | `computeSuccessRate()` Compute the success rate for receiveing packets.
`int` | `computeThroughputMBPerSec()` Compute the throughput in megabytes per second.
`int` | `computeThroughputPacketsPerSec()` Compute the throughput in megabytes per second.
`static void` | `generateReport(java.lang.String sPeriod, java.util.Map mapTracker)` Generate a report for all PacketTrackers in the Map.
`java.lang.String` | `getTabularReport()` Return a report in tabular form.
`static java.lang.String` | `getTabularReportHeader()` Return a header for a tabular report.
`void` | `reset(long lTimeMs)` Reset the counters.
`java.lang.String` | `toString()` Return a human readable report on the tracked data.
`static java.lang.String` | `toString(DatagramTest.PacketTracker[] aTracker)` Return a summay report on multiple trackers.
`void` | `trackArrival(int nCurrent, long ldtSentNanos, long ldtAckNanos, int cBytes)` Track the arrival of a new packet.

Field Detail

### m_addrSender

    protected java.net.SocketAddress m_addrSender

### m_atomicAckOut

    protected AtomicCounter m_atomicAckOut

### m_cPacketsRcvd

    protected int m_cPacketsRcvd

### m_lStartTime

    protected long m_lStartTime

### m_lLastPacketArrivalTime

    protected long m_lLastPacketArrivalTime

### m_nMin

    protected int m_nMin

### m_nMax

    protected int m_nMax

### m_nNext

    protected int m_nNext

### m_cOutOfOrder

    protected int m_cOutOfOrder

### m_cTotalOutOfOrderOffset

    protected long m_cTotalOutOfOrderOffset

### m_cBytesReceived

    protected long m_cBytesReceived

### m_cGaps

    protected long m_cGaps

### m_cGapPackets

    protected long m_cGapPackets

### m_cGapMillis

    protected long m_cGapMillis

### m_lDeltaRttNanos

    protected long m_lDeltaRttNanos

### m_cAcksIn

    protected long m_cAcksIn

Constructor Detail

### DatagramTest.PacketTracker

    public DatagramTest.PacketTracker(java.net.SocketAddress addrSender)

  Construct a PacketTracker for the given client.

  Parameters:
    `addrSender` - the address of the client

Method Detail

### trackArrival

    public void trackArrival(int nCurrent,
                             long ldtSentNanos,
                             long ldtAckNanos,
                             int cBytes)

  Track the arrival of a new packet.

  Parameters:
    `nCurrent` - packet number
    `cBytes` - packet size in bytes

### reset

    public void reset(long lTimeMs)

  Reset the counters.

  Parameters:
    `lTimeMs` - the current time

### computeDurationMillis

    public long computeDurationMillis()

  Return the duration this tracker has been accumulating data for.

  Returns:
    duration in milliseconds

### computeRttNanos

    public long computeRttNanos()

  Return the average round trip time of a packet in milliseconds.

  Returns:
    the average packet round trip time

### computeSentPackets

    public int computeSentPackets()

  Compute the number of packets sent by the publisher.

  Returns:
    the number of packets sent by the publisher

### computeMissingPackets

    public int computeMissingPackets()

  Compute the number of missing packets.

  Returns:
    the number of missing packets

### computeAverageOutOfOrderOffset

    public long computeAverageOutOfOrderOffset()

  Compute the average out of order offset for packets which arrived out of order.

  Returns:
    the average out of order offset

### computeSuccessRate

    public float computeSuccessRate()

  Compute the success rate for receiveing packets.

  Returns:
    the success rate

### computeThroughputMBPerSec

    public int computeThroughputMBPerSec()

  Compute the throughput in megabytes per second.

  Returns:
    return the computed throughput

### computeThroughputPacketsPerSec

    public int computeThroughputPacketsPerSec()

  Compute the throughput in megabytes per second.

  Returns:
    return the computed throughput

### computeAveragePacketSize

    public int computeAveragePacketSize()

  Compute average packet size.

  Returns:
    the average packet size received

### getTabularReportHeader

    public static java.lang.String getTabularReportHeader()

  Return a header for a tabular report.

  Returns:
    a tabular report header

### getTabularReport

    public java.lang.String getTabularReport()

  Return a report in tabular form.

  Returns:
    a report in tabular form

### toString

    public java.lang.String toString()

  Return a human readable report on the tracked data.

  Returns:
    a human readable report

### toString

    public static java.lang.String toString(DatagramTest.PacketTracker[] aTracker)

  Return a summay report on multiple trackers.

  Parameters:
    `aTracker` - an array of trackers which ran concurrently

### generateReport

    public static void generateReport(java.lang.String sPeriod,
                                      java.util.Map mapTracker)

  Generate a report for all PacketTrackers in the Map.

  Parameters:
    `sPeriod` - description of the period the results cover
    `mapTracker` - the map of trackers

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Oracle® Coherence Java API Reference
v3.5.3
E15583-01
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