Performance Degradation as a Result of 'enq: CF - contention' (Doc ID 1072417.1)

Last updated on DECEMBER 06, 2016

Applies to:

Oracle Database - Enterprise Edition - Version 9.2.0.1 to 11.2.0.3 [Release 9.2 to 11.2]
Information in this document applies to any platform.
***Checked for relevance on 20-Jan-2012***
*** Checked for relevance on 12-Apr-2016 ***


Symptoms

You are seeing sessions waiting for 'enq: CF - contention' or this wait event is appearing in the top 5 wait events in an AWR or statspack report.

Cause

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