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WAITEVENT: "library cache: mutex X" (Doc ID 727400.1)

Last updated on JANUARY 18, 2022

Applies to:

Gen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Database Backup Service - Version N/A and later
Oracle Database Cloud Exadata Service - Version N/A and later
Information in this document applies to any platform.

Purpose

This document explains the meaning of the wait event "library cache: mutex" and gives hints on how it may be used to diagnose performance problems.

Scope

This is intended for DBAs and developers who are involved with tuning their database. An intermediate level of expertise is required.

Details

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In this Document
Purpose
Scope
Details
 Definition:
 Individual Waits:
 Wait Time:
 Reducing Waits / Wait times:
 Known Bugs:
References

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