- How to Use JPerf | NetBeez

- How to Use JPerf | NetBeez

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Jperf for windows 10.JPerf – graphical interface wrapper for Iperf 













































   

 

Download JPerf - Description



  JPerf is a simple framework for writing and running automated performance and scalability tests. It's like JUnit but for performance. Porting of the powerfull iPerf program for bandwidth measurements to Microsoft Windows CE. JPerf. Java Performance and Scalability Testing.  


- Jperf for windows 10



 

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This post looks at the transport layer options. A few explanatory notes are in order to explain these parameters. In terms of transmission, it is less than the MTU of the card. The Window size denotes how many packets can be sent before an acknowledgement is required. The Buffer length is the amount of traffic that can be queued for transmission. These three parameters can all be adjusted, depending on what you want to test.

This allows you to define how many connections are allowed to the server; here it is set to five. For this run, four actual connections were made. As can be seen, jperf draws and updates the graph as each transmission is received.

The output window below the graph provides the numbers used to draw the graph. This output can be saved if you want to use some other graphing program such as Libre Office Calc. The second run was done using UDP, using the default parameters. The results are as shown in Figure C.

Again, the number of connections allowed is five. Here the output for bandwidth and jitter are shown. As can be seen in both the graphs, four connections were made to the server. This is because UDP does not acknowledge whether a frame is received or not. Hence, UDP will send out the frames as fast as it receives them.

The second graph shows the jitter, again for all four users. In this case the highest value for the jitter is around 2. As for TCP, you can save the output as a text file.

Jperf provides a handy GUI option for iperf. A nice feature is being able to re-use the iperf command line strings if you want to so some scripting for the purpose of monitoring, data gathering or testing.

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