FACT SHEET: TOPAZ® FOR JAVA PERFORMANCE
Topaz for Java Performance
EMPOWERING ENTERPRISE I.T. TO EXPLOIT THE BENEFITS OF JAVA ON THE MAINFRAME Java® on the mainframe enables IT organizations
to leverage a wealth of existing programming
expertise, as well as the security and
superior platform economics of mainframe
specialty processors.
Topaz for Java Performance provides unique visibility into
the performance of Java batch programs and Websphere
transactions running on the mainframe. With these
capabilities, mainframe owners have confidence to more
aggressively pursue the benefits of running Java on IBM z
Systems, which include leveraging the wealth of existing
Java expertise and lowering costs through the use of IBM’s
specialty processors.
In addition, Topaz for Java Performance seamlessly
integrates with Compuware Strobe, enabling staff to
take comprehensive measurements of their entire Java
environment—inside and out. Strobe delivers valuable
insight about Java Virtual Machine (JVM) jobs and specialty
processor usage, while Topaz for Java Performance provides
visibility inside the JVM for targeted tuning of Java programs.
All Topaz for Java Performance components can be
installed on z/OS Unix and use DB2 to store data. This
enables organizations to use their existing systems. Other
installation options are available for Windows platforms.
At-a-glance summary of Topaz for Java Performance measurements of CPU Utilization, Heap Memory, Java Classes and Threads.
FACT SHEET: TOPAZ® FOR JAVA PERFORMANCE
KEY BENEFITS
Analyze the Performance of Your Java Batch Programs
Many of today’s mainframe performance tools don’t provide
visibility into performance issues inside JVMs. Topaz for Java
Performance enables users to take immediate measurements
of JVMs as well as schedule future measurements, resulting
in fewer costs, less data collection and lower network traffic
than constant monitoring.
Reduce CPU Usage
Locate and Correct Java Performance
Issues More Easily
Websphere Application Server (WAS) can have tens
of thousands of Java Classes running, making locating
performance tuning opportunities daunting at best. Topaz
for Java Performance provides a list of Class Methods using
the most CPU, which gives developers a strong starting
point for examining each Class Method for typical Java
performance issues.
Topaz for Java Performance CPU Charts show which Java
Classes are using the most CPU by pinpointing where CPU
spikes occur and how much CPU is used at a given time.
Users can then take the information and decide how much
CPU to allocate to a particular JVM to ensure that workloads
are continuously processed without interruption.
Topaz for Java Performance enables users to find which Java Classes and Methods are using the most CPU.
FACT SHEET: TOPAZ® FOR JAVA PERFORMANCE
Prevent Memory Leaks
Easy Heap Memory Monitoring
All JVMs are susceptible to memory leaks that occur when
Java objects are no longer used but are still being referenced.
Perpetual references prevent a process called “Garbage
Collection” from reclaiming the memory of these objects.
The Topaz for Java Performance Memory Charts show
memory growth over time, including periods after Garbage
Collection. This enables users to gauge whether Garbage
Collection was successful in reclaiming memory or whether
a memory leak exists.
Topaz for Java Performance Memory Charts also enable
users to see if their JVMs are hitting their maximum
allocated Heap Memory. A history of JVM measurements
provides a view of workload changes over time, helping
developers stay on top of changing workloads to ensure
they have enough memory allocated to their JVMs.
To learn more about Topaz for Java Performance,
visit compuware.com/topaz-for-java-performance.
For more details on the full Topaz suite, visit
compuware.com/topaz.
A Java Performance Memory Chart depicting a JVM’s Heap Memory usage. When maximum
allocated Heap Memory is reached, a more aggressive Garbage Collection occurs.
The Mainframe Software Partner For The Next 50 Years
Compuware empowers the world’s largest companies to excel in the digital economy by fully leveraging their high-value mainframe investments. We do this
by delivering highly innovative solutions that uniquely enable IT professionals with mainstream skills to manage mainframe applications, data and platform operations.
Learn more at Compuware.com.
© 2015 Compuware Corporation. Compuware products and services listed within are trademarks or registered trademarks of Compuware Corporation.
Java is a registered trademark of Oracle and/or its affiliates.
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