Made this due to iperf not being available for IBM i and the need to do some measurement of network throughput. Makes it possible to measure network throughput between two IBM i hosts (on same or different frames) or to/from Linux, AIX, Windows or any other platform that runs Java. To get best speed you need to use TCP and large packet sizes. The iperf tool defaults to 128K for TCP and 8K for UDP.
Mark Nellemann
7431ce836e
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README.md
jPerf
Small utility to measure network performance between two hosts.
Requirements
You need Java (JRE) version 8 or later to run jperf.
Usage Instructions
- Install the jperf package (.deb, .rpm or .jar) from downloads or compile from source.
- Run /opt/jperf/bin/jperf, if installed from package
- Or as java -jar /path/to/jperf.jar
Usage: jperf [-hV] [-l=SIZE] [-n=NUM] [-p=PORT] (-c=HOST | -s)
Network performance measurement tool.
-c, --connect=HOST Connect to remote server
-h, --help Show this help message and exit.
-l, --pkt-len=SIZE Datagram size in bytes, max 65507 [default: 65507]
-n, --pkt-num=NUM Number of packets to send [default: 150000]
-p, --port=PORT Network port [default: 4445]
-s, --server Run server and wait for client
-V, --version Print version information and exit.
Development Information
You need Java (JDK) version 8 or later to build jperf.
Build & Test
Use the gradle build tool, which will download all required dependencies:
./gradlew clean build