Network Performance Test Tool (iPerf)
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Overview

This iperf-based Network Performance Tool executes a synthetic workload on the network to evaluate the performance characteristics available between the Delphix Engine and Target servers.

Prerequisites

The network performance tool measures network performance between a Delphix Engine and an environment host. You must have added an environment in order to use this tool.


This transmission control protocol (TCP) throughput test uses TCP port 50001 by default. The port can also be configured on a per-test-run basis. For the duration of a given throughput test, a server on the receiver will be listening on this port. For a transmit test, the receiver is the remote host; for a receive test, the receiver is the Delphix Engine.

Running the Network Test via CLI - Latency

The network latency test measures network round-trip latency by transmitting ICMP echo requests (like the ping utility) and measuring the time to receive replies from the remote host. To execute a test:

  1. Login as a domain user to the Delphix Engine CLI using ssh.

  2. Create a network latency test.

    delphix> network test latency
delphix network test latency> create
delphix network test latency create *>

  3. You must set remoteHost to the name of an environment host already configured in the Delphix Engine. (You should press tab after the "=" (equal sign) to auto-populate and confirm registered destinations). Use 'get' to see other optional arguments. Modify the test parameters as needed and commit to start the test. 

    delphix network test latency create *> set remoteHost=oracletarget 
delphix network test latency create *> get
    type: NetworkLatencyTestExecuteParameters
    remoteHost: oracletarget
    requestCount: 20
    requestSize: 8B
delphix network test latency create *> commit
    Dispatched job JOB-20
    NETWORK_LATENCY_TEST_EXECUTE job started for "oracletarget-2014-06-20T18:57:28.659Z".
    Executing network latency test.
    NETWORK_LATENCY_TEST_EXECUTE job for "oracletarget-2014-06-20T18:57:28.659Z" completed successfully.

  4. The job will be submitted and visible in the Delphix Management application.

  5. Retrieve the test results. All times are in microseconds.

    delphix network test latency> list
NAME                                   AVERAGE
oraclesource-2014-06-20T18:57:28.659Z  872
delphix network test latency> select oraclesource-2014-06-20T18:57:28.659Z 
delphix network test latency "oraclesource-2014-06-20T18:57:28.659Z"> get
    type: NetworkLatencyTest
    name: oraclesource-2014-06-20T18:57:28.659Z
    average: 872
    endTime: 2014-06-20T18:57:48.558Z
    loss: 0
    maximum: 2755
    minimum: 294
    reference: NETWORK_LATENCY_TEST-2
    remoteAddress: 172.16.203.184
    remoteHost: oraclesource
    requestCount: 20
    requestSize: 8B
    startTime: 2014-06-20T18:57:28.659Z
    stddev: 527

Running the Network Test via CLI - Throughput

The network throughput test measures sustained throughput using a synthetic workload to or from a remote host. To execute a test:

  1. Login as a domain user to the Delphix Engine CLI using ssh.

  2. Create a network throughput test.

    delphix> network test throughput
delphix network test throughput> create
delphix network test throughput create *>

  3. You must set remoteHost to the name of an environment host already configured in the Delphix Engine. Use 'get' to see other optional arguments. Modify the test parameters as needed and commit to start the test. 

    delphix network test throughput create *> set remoteHost=oraclesource 
delphix network test throughput create *> ls
Properties
    type: NetworkThroughputTestParameters
    blockSize: 128KB
    direction: TRANSMIT
    duration: 30
    numConnections: 0
    port: 50001
    receiveSocketBuffer: 4MB
    remoteHost: oraclesource
    sendSocketBuffer: 4MB
delphix network test throughput create *> commit
    Dispatched job JOB-21
    NETWORK_THROUGHPUT_TEST_EXECUTE job started for "oraclesource-2014-06-20T19:30:12.566Z".
    Executing network throughput transmit test.
    Measuring throughput with variable number of connections: 1.
    Measuring throughput with variable number of connections: 2.
    Measuring throughput with variable number of connections: 4.
    Measuring throughput with variable number of connections: 6.
    Measuring throughput with variable number of connections: 8.
    Measuring maximum sustained throughput for 30 seconds with 8 connections.
    NETWORK_THROUGHPUT_TEST_EXECUTE job for "oraclesource-2014-06-20T19:30:12.566Z" completed successfully.

  4. The job will be submitted and visible in the Delphix Management application.

  5. Retrieve the test results.

    delphix network test throughput> list
NAME                                   DIRECTION    STATE     THROUGHPUT
oraclesource-2014-06-20T19:30:12.566Z  TRANSMIT     COMPLETED 695.6Mbps
delphix network test throughput> select oraclesource-2014-06-20T19:30:12.566Z
delphix network test throughput "oraclesource-2014-06-20T19:30:12.566Z"> get
    type: NetworkThroughputTest
    name: oraclesource-2014-06-20T19:30:12.566Z
    endTime: 2014-06-20T19:31:15.041Z
    numConnections: 8
    parameters:
        type: NetworkThroughputTestParameters
        blockSize: 128KB
        direction: TRANSMIT
        duration: 30
        numConnections: 0
        port: 50001
        receiveSocketBuffer: 4MB
        remoteHost: oraclesource
        sendSocketBuffer: 4MB
    reference: NETWORK_THROUGHPUT_TEST-2
    remoteAddress: 172.16.203.184
    startTime: 2014-06-20T19:30:12.566Z
    state: COMPLETED
    throughput: 695.6Mbps