Rational Performance Tester
mquimby 060001FAVB Tags:  rational top-content education quality tester youtube rpt performance hot-support-content multimedia 7,895 Views
A new video is available on the Rational Support YouTube channel. This video is a demonstration of creating custom code in Rational Performance Tester recorded during an Open Mic session. A link and preview of the video are below.
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kellypuffs 06000168YK Tags:  iea rational aos performance viewlets education tester clearcase 7,452 Views
IBM Education Assistant is a series of educational modules designed to help you gain a better understanding of IBM software products and use them more effectively to meet your business needs.
New IEA modules published in April:
Rational ClearCase Global Monitor Installation (published 4/30/2010)
Rational Performance Tester Using Datapools in Rational Performance Tester (published 4/30/2010)
Assist On-site How to get started with Assist On-site (published 4/23/2010)
You can find these, and many more,
Advanced Rational Performance Tester Reports: 5 Way to Get Deeper Insight into Performance Test Results
kellypuffs 06000168YK Tags:  performance testing advanced rpt rational-performance-test... reports 6,628 Views
By default, IBM Rational Performance Tester provides essential performance metrics, such as throughput, response times, concurrency, and success rate. However, it also includes several advanced features for detailed analysis, many of which are not commonly used. Proper use of these options provides deeper insight when analyzing test results.
This new developerWorks article gives five tips for using some of these advanced features, all of which have helped tremendously in real-world performance testing projects with large companies.
Advanced Rational Performance Tester Reports: 5 Ways to Get Deeper Insight into performance test results
RohitBalduwa 2700066W8H Tags:  rational-client-support rational upload performance javacores ibm-wait collect wait 6,267 Views
The IBM Whole-system Analysis of Idle Time (“WAIT”) tool is a web-based tool for diagnosing performance and scalability bottlenecks, especially in deployed enterprise environments, but useful throughout the software life cycle from development to test to deployed customer environments and IBM customer support.
Collecting WAIT Data:
For example, the Figure below illustrates a simple use of the WAIT data collector for AIX, Linux, Solaris, and HP-UX. In this
In this example, javacores are collected every 15 seconds. However, the current default is every 30 seconds. When the system is generally performing acceptably, we recommend collecting WAIT data infrequently – once every 20 minutes to provide a baseline of performance with minimal impact and data storage requirements. When problems occur, we recommend increasing the collection rate to every 30 seconds and collecting data for 5-10 minutes at this increased rate.
Many other options are available than just specifying the PID of the JVM. For example, the data collector supports collecting data from all JVMs in the system or collecting N samples and then stopping. Invoking the data collector (waitDataCollector.sh) with no arguments specifies the full list of options, as illustrated in the Figure below:
You must either specify one or more valid PIDs, or use the option: --processName NAME
USAGE: ./waitDataCollector_2013-02-20.sh [options] [PID_1] [PID_2] [... PID_N]
If unspecified this value is computed based on the sleep interval.
As the figure indicates, these options provide the ability to monitor all JVMs or only a subset of interest, and also provide control over naming and location of files and the interval at which javacores are collected and for how long.
Once the data has been collected, it is ready to be uploaded to the WAIT server and a description of that follows shortly.
The WAIT data collector essentially automates these manual steps under the cores. We also note that “kill -3” on the JVM process ID does not kill it, but only causes it to dump a javacore. Under the covers the WAIT data collector also collects data from ps and vmstat, as well as lparstat if available. It is not required that these utilities be available. The quality of the WAIT report is improved if they are available, but the report provides a great deal of useful information even without them.
Upload data to WAIT Server
Using the “Select a File” button in green, you may select the zip file created using the data collector process described in the previous section. By default, this file will be named waitData.tar.gz. Select this file using the standard Windows or MacOS or other browser explorer mechanism. The optional description field can be used to detail the content of the report and to enter searchable phrases. Your email address is filled in by default and provides a useful key to finding reports from history. With this information (file, optional description, email address – completed by WAIT based on your login), you are ready to click the green “Submit for Analysis” button.
After doing so, the WAIT report will pop up in your browser in a few seconds (although times can vary depending on your connection speed and the number / size of the javacores and other data being uploaded).
kellypuffs 06000168YK Tags:  clearquest-web tuning guidelines cqweb performance-test performance clearquest 6,143 Views
IBM Rational ClearQuest architecture changed substantially in Version 7.1. This great developerWorks article updates performance testing and tuning guidelines and also introduces a systematic approach for designing test scenarios, creating test scripts, and tuning performance at various layers.
Be sure to check out the many great resources and links also referenced, and be sure to let us know what you think of the article by rating it. Thanks and enjoy!
Link: Updated Guidelines for performance testing and tuning with ClearQuest Web 7.1