Using DTrace with Java Technology-Based Applications: Bridging the Observability Gap
TS-6145

The Solaris 10 operating system (Solaris 10 OS) delivered a revolutionary new subsystem called the Solaris Dynamic Tracing framework, more affectionately called DTrace. DTrace is an observability technology that enables you, for the first time, to answer virtually every question you ever wanted to ask about the behavior of your systems and applications. Recent versions of the Sun Java Virtual Machine (JVM machine) now include DTrace providers through JMX technology, allowing further insight into the workings of Java technology-based applications.

Unlike traditional profilers designed for Java technology-based applications, DTrace enables you to slice through the entire system from Java application code right through to kernel-level interactions. The JVM machine is itself just another application, which opens up a range of interesting possibilities for analyzing and modifying application performance. This session looks at how DTrace can be used to analyze both the code of a Java technology-based application and the resultant interaction of the JVM machine running this code with the rest of the Solaris operating system.

In addition, new features are being explored for the Java Platform, Standard Edition 7 (Java SE 7 platform) that will enable the creation and use of programmer-defined instrumentation points, similar to those of the existing USDT provider. This session presents details of how to create and use the new JSDT provider.

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