Automated Testing

Automated Testing

Automated Testing

Build an automated testing process to enable continuous integration of your hybrid cloud applications including z/OS

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  • 1.  RDz UT and WebSphere Application Server

    Posted Sat June 25, 2011 03:35 AM
    Hi,

    did some of you guys already tried out WebSphere Application Server within the RDz UT? I've played a little bit around (defined a new cell, started all the jobs to the new profile, etc.) and the performance is really bad. OK, my key is only for one processor, this doesn't help much, the machine is almost all the time at 100%. I have enough memory (8 GB for the RDz UT, 16 GB on the laptop) and good processors (Intel CORE i7 vPro).
    For example, the last job in the profile definition used to run in 15 minutes in a normal environment (normal here is the time I need in the WebSphere class ES68, WebSphere implementation). In RDz UT it needed around 4 hours. Now, when I start the deployment manager, it consumes lots of CPU and needs hours (really HOURS) to come up. I increased some parameters in OMVS (like MAXFILEPROC, MAXTHREADTASKS), put the WAS binaries in virtual memory, but that didn't help much.

    Thank you for any pieces of information you want to share with me and also for any hints!

    Rodney
    Krick


  • 2.  Re: RDz UT and WebSphere Application Server

    Posted Mon June 27, 2011 07:30 AM
    Hi Rodney. Java workloads are the worst performing of all workloads on RDz-UT. This is because java is very cpu intensive and all cpu is emulated on RDz-UT. Additionally, WebSphere has many jsps that need to be compiled when it is brought up. There is a JVM parameter you can specify that will speed up WebSphere start, however there are side effects. Check out the WebSphere I/C for details.

    Having said all of the above, I run a standalone WebSphere node on a 3 processor Specialty license with what I consider acceptable performance. I can start my SA server in 15 minutes. The admin console comes up in about 2 minutes. First page load is about 1 minute due to jsp compile. Second time access is a few seconds.

    Bottom line is if you want to run java on RDz-UT, you probably need to be looking at a specialty license.

    RDz_John
    RDzJohn


  • 3.  Re: RDz UT and WebSphere Application Server

    Posted Mon June 27, 2011 12:04 PM
    John,
    thank you very much for the quick answer. I'll give WebSphere a second chance ;-) The times you've posted are OK, we are already talking with IBM about a new license, that could solve our problem.
    Regards,

    Rodney
    Krick


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