The software described in this documentation is either in Extended Support or Sustaining Support. See https://www.oracle.com/us/support/library/enterprise-linux-support-policies-069172.pdf for more information.
Oracle recommends that you upgrade the software described by this documentation as soon as possible.

Chapter 11 DTrace

This chapter introduces the dynamic tracing (DTrace) facility that you can use to examine the behavior of the operating system and the operating system kernel. Version 0.4 of DTrace is described, which is supported for use with UEK R3.