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  • 1.  Stress load testing tools on the IBM i

    Posted Wed March 27, 2024 05:37 PM

    Hello,

    we are hereby asking if you are familiar with the JMETER performance tool. According to what has been reported, this tool is used to perform stress load tests on the IBMi and then issues graphical reports on the performance of the server resources.
    Please support me in what I consulted.

    Thanks!



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    Regards,

    Jorge L
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  • 2.  RE: Stress load testing tools on the IBM i

    Posted Wed March 27, 2024 10:20 PM

    Dear Jorge

    JMETER can be used with any computer system at all. I never use it but last year my company paid a vendor of LoadRunner (a competitive product to JMETER) to develop test scripts and conduct a performance stress test with my customer's IBM i application workload.  It involved selecting many user application screens (all GUI in my case) of several selected application transaction types for the tool to simulate user key strokes for the stress test. When the stress test is done, the tool produces many text and graphical reports such as min/max/average transaction rate, min/max/average response time for each type of transaction and so on. 



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    Satid S
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  • 3.  RE: Stress load testing tools on the IBM i

    Posted Thu March 28, 2024 07:34 AM

    By the way, is the workload you want to do performance stress test against a multi-tier workload - which means user client PCs connect to Intel server(s) that issue requests to IBM i server?  If so, you need to set proper value for TCPIP send and receive buffer size and implement persistent connection pool from Intel server to IBM i.  If you have a firewall between Intel and IBM i servers, you also need to set TCPIP keep-alive timer at say, 10 minutes on Intel server as well.     More details about this multi-tier application performance matter in my post here: Performance degradation on system while webservice calls at  https://community.ibm.com/community/user/power/discussion/performance-degradation-on-system-while-webservice-calls



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    Satid S
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