How to Match a Row Cache Object Child Latch to its Row Cache (Doc ID 468334.1)

Last updated on DECEMBER 13, 2016

Applies to:

Oracle Database - Enterprise Edition - Version 9.2.0.1 and later
Information in this document applies to any platform.

Goal


In Database Performance investigations where 'latch free' waits on this type of latch consume significant database time, it is useful to be able to map each 'row cache objects' child latch to the row cache it covers. In this way, we can map the number of SLEEPS for a child latch (CHILD#) in V$LATCH_CHILDREN to a particular type of row cache.


Solution

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