This document provides information to help you solve problems that you might encounter while running the Oracle JRockit JVM.
This document contains the following chapters:
Chapter 1, "Diagnostics Roadmap" outlines the steps you should follow to arrive at the best solution for your problem.
Chapter 2, "Slow JVM Startup" describes how you can recognize and troubleshoot a slow-starting JVM.
Chapter 3, "Long Latencies" describes how to recognize and troubleshoot long garbage collection pauses that have an adverse impact on system performance.
Chapter 4, "Low Overall Throughput" describes how to recognize and troubleshoot when the application runs too slowly.
Chapter 5, "Performance Degradation" describes measures you can take when your application begins to behave erratically, return incorrect results, or throw OutOfMemory exceptions.
Chapter 6, "Crashing JVM" describes what to do when your system—the JVM or the application—stops sending signals.
Chapter 8, "About Crash Files" provides information about the crash files that the JRockit JVM creates if it crashes.
Chapter 7, "Freezing JVM" describes what to do when the JVM or Java application becomes unresponsive but has not crashed.
Chapter 9, "Contacting Oracle for Support" provides the best practices to follow when you want to report a JRockit JVM problem to Oracle Support.
Our goal is to make Oracle products, services, and supporting documentation accessible to all users, including users that are disabled. To that end, our documentation includes features that make information available to users of assistive technology. This documentation is available in HTML format, and contains markup to facilitate access by the disabled community. Accessibility standards will continue to evolve over time, and Oracle is actively engaged with other market-leading technology vendors to address technical obstacles so that our documentation can be accessible to all of our customers. For more information, visit the Oracle Accessibility Program Web site at http://www.oracle.com/accessibility/
.
Accessibility of Code Examples in Documentation
Screen readers may not always correctly read the code examples in this document. The conventions for writing code require that closing braces should appear on an otherwise empty line; however, some screen readers may not always read a line of text that consists solely of a bracket or brace.
Accessibility of Links to External Web Sites in Documentation
This documentation may contain links to Web sites of other companies or organizations that Oracle does not own or control. Oracle neither evaluates nor makes any representations regarding the accessibility of these Web sites.
Oracle customers have access to electronic support through My Oracle Support. For information, visit http://www.oracle.com/support/contact.html
or visit http://www.oracle.com/accessibility/support.html
if you are hearing impaired.
The following text conventions are used in this document:
Convention | Meaning |
---|---|
boldface | Boldface type indicates graphical user interface elements associated with an action, or terms defined in text or the glossary. |
italic | Italic type indicates book titles, emphasis, or placeholder variables for which you supply particular values. |
monospace |
Monospace type indicates commands within a paragraph, URLs, code in examples, text that appears on the screen, or text that you enter. |