If you accessed this document from a product or documentation media, you may not be reading the latest Release Notes . For the most recent information, go to https://go.compuware.com , Compuware's customer support Web site. The first time you access FrontLine, you are required to register and obtain a password. After logging onto FrontLine, select your product from the drop-down list and click Go. On the left side of the page, click the Documentation link. You will find the latest Release Notes listed with the other product documentation.
Topaz for Java Performance collects performance statistics for your Java Virtual Machines (JVMs) on z/OS. It provides information about performance inside of the JVMs. Topaz for Java Performance uses a sampling approach to approximate the amount of CPU that is used by different classes.
Compuware Shared Services (CSS), Base Services, Host Communications Interface (HCI), License Management System (LMS), and Compuware Mainframe Services Controller (CMSC) are now packaged together into an Enterprise Common Components (ECC) single pair of load libraries. This enhancement will make installation and maintenance of Compuware products easier and quicker.
The Topaz for Java Performance Measurement Page provides a centralized location to manage Topaz for Java Performance Agents. Users can start immediate measurements or schedule recurring measurements. Users can compare these scheduled measurements using the Trend Reports across different time intervals or different JVMs. Topaz for Java Performance Agents may be installed in many LPARs, yet all measurement requests can be controlled from the Measurement Page.
Topaz for Java Performance allows users to view and manage trend reports to understand the Java program performance over a series of measurement time frames. The reports summarize Topaz for Java Performance measurements to help identify trends based on data gathered from measurements.
Topaz for Java Performance maintains historical Measurement data so you can compare before and after measurements to ensure your performance tuning efforts are successful. Each Topaz for Java Performance measurement captures the Java Virtual Machine (JVM) settings. These settings can dramatically affect the performance of the JVM and this information provides context to make changes to these JVM settings. Once settings are changed it is to re-measure and compare results.
Strobe and iStrobe Release 16.03 provide integration with Topaz for Java Performance, allowing users to follow their performance measurement into the Java Virtual Machine (JVM). Strobe and iStrobe provide a broader view of the z/OS system and how it impacts the performance of JVM, whereas Topaz for Java Performance provides a view of the performance behavior inside of the JVM. Strobe measurements of z/OS Java applications cause a command to be issued to Topaz for Java Performance for collection of the Java performance data. Analysis of the application with iStrobe allows the user to easily move between Topaz for Java Peformance measurements and the iStrobe profiles. No site configuration or customization is required for this integration.
For information about IBM System z software and hardware compatibility--specifically regarding IBM's z/OS Recommended Service Upgrade, IBM's Extended Address Volumes, IBM DB2 for z/OS, and z/OS product compatibility--refer to http://frontline.compuware.com/charts/hardware.aspx .
The following sections show the possible software configurations for each of the components tested with Topaz for Java Performance. Other configurations might be compatible with Topaz for Java Performance, but have not been tested.
• A Google Chrome security update prohibits viewing of WebHelp when the help is deployed locally from a file server (as opposed to a Web server). Attempting to view locally deployed help displays a blank help window. Compuware suggests that online help be viewed using Internet Explorer. Alternatively, Chrome's security feature can be turned off by launching Chrome with the command line option --allow-file-access-from-files. This method should only be used when opening local WebHelp that you trust.
• When installing CES on Windows, you may encounter an error referring to the Java VM. This is a problem with InstallAnywhere and Java 8. It can be resolved by removing the following entry from the Path variable:
• If you specify a temporary directory smaller than that which is required for installation, you may be presented with a message indicating that your evaluation period has expired. You can reallocate space and restart the installation process.
The product installation package does not include the product documentation. The following Topaz for Java Performance documentation is available in electronic format on the product documentation site at Compuware's customer support website, http://go.compuware.com .
Access the Topaz for Java Performance product documentation as described in Latest Release Notes .
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