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.

2.1.2 DTrace vtimestamp Function

The vtimestamp() function now returns the correct value for the amount of time that the current thread has been running on a CPU, excluding the time spent performing DTrace predicates and actions. (Bug ID 17741477)

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