|bea.com | products | dev2dev | support | askBEA|
|e-docs > WebLogic Server > JRockit for Windows and Linux User Guide > Introduction to BEA WebLogic JRockit|
JRockit for Windows and Linux User Guide
Introduction to BEA WebLogic JRockit
Welcome to BEA WebLogic JRockit 8.1 Beta, the first commercial server-side Java Virtual Machine. JRockit was developed uniquely for server-side applications and optimized for Intel architectures to ensure reliability, scalability, manageability, and flexibility for Java applications. This user guide provides instructions for using JRockit on the Window and Linux platforms.
This section contains information on the following subjects:
What is JRockit?
BEA WebLogic JRockit 8.1 Beta is the only credible high performance Java Virtual Machine (JVM) developed uniquely for server-side applications and optimized for Intel architectures. JRockit is designed to ensure reliability, scalability, manageability, and flexibility for Java applications. A crucial component of the BEA WebLogic Platform, WebLogic JRockit delivers a new level of performance for Java applications deployed on any kind of hardware architecture at significantly lower costs to the enterprise. Furthermore, it is the only enterprise-class JVM optimized for Intel Architecture, providing seamless interoperability across multiple hardware and operating system configurations.
Why Should I Use JRockit?
There are two critical reasons for using BEA WebLogic JRockit:
If you are running server-side applications, JRockit is the most effective VM you can use. A server-side VM is designed with server applications in mind. Server-side applications have very different requirements than client-side applications and demand different behavior from a VM. These applications generally do not use graphical user interfaces, run for longer periods of time, and are usually parallel and thread intensive. To fully exploit server-side applications and ensure optimal performance, you VM should employ a server-specific design policy.
Adaptive optimization is a JRockit feature that detects and removes bottlenecks in a running program, significantly improving program performance. Adaptive optimization can result in code with better performance than statically compiled code because it has access to more information regarding the running program. Another advantage is that the code does not lose any of the dynamic characteristics of interpreted languages.
What Platforms Does JRockit Support?
BEA WebLogic JRockit 8.1 Beta, running with JS2E version 1.4.1, supports the following platforms:
How to Print JRockit Documents
You can print a copy of this user guide from a Web browser, one file at a time, by using the File—>Print option on the browser.
A PDF version of this user guide is available on the JRockit 8.1 Beta documentation pages on the e-docs Web site. You can open the PDF in Adobe Acrobat Reader and print the entire document (or a portion of it) in book format. To access and print the PDFs, do the following:
A new browser launches, running the Adobe Acrobat Reader, which contains the PDF version of the document you selected.
The Print dialog box appears.
If you do not have the Adobe Acrobat Reader, you can get it for free from the Adobe Web site at http://www.adobe.com/.
The following documentation conventions are used throughout this document.
Indicates code samples, commands and their options, data structures and their members, data types, directories, and filenames and their extensions. Monospace text also indicates text that you must enter from the keyboard.
Should you experience any problems or find any bugs, please send us an e-mail at firstname.lastname@example.org. We would appreciate if you could provide as much information as possible about the problem, for example: