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DTrace is a comprehensive, advanced tracing tool for troubleshooting systematic problems in real time. Originally developed for Oracle Solaris and later ported to Oracle Linux, it allows administrators, integrators and developers to dynamically and safely observe live systems for performance issues in both applications and the operating system itself. DTrace allows you to explore your system to understand how it works, track down problems across many layers of software, and locate the cause of any aberrant behavior. DTrace gives the operational insights that have long been missing in the data center, such as memory consumption, CPU time or what specific function calls are being made.
Developers can learn about and experiment with DTrace on Oracle Linux by installing the appropriate
dtrace-utils-devel packages found on yum.oracle.com or the Unbreakable Linux Network.
Note that DTrace requires the Unbreakable Enterprise Kernel (UEK) release 4 or release 5. Support and maintenance for DTrace on UEK3 has been discontinued.