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Spotlight on Oracle 10.9 - Getting Started Guide

Welcome to Spotlight Install Spotlight Start Spotlight Spotlight on Oracle Spotlight on Oracle Data Guard Spotlight on Oracle RAC Spotlight on Unix Spotlight on Windows Spotlight on MySQL Troubleshooting: Connection Problems

Latch Free Waits Alarm

Latches are Oracle internal locking mechanisms. They prevent multiple sessions from updating the same item simultaneously within Oracle shared memory (SGA). If a session needs to acquire a latch that is held by another session, a latch free wait may occur.

The presence of latch free waits may indicate a bottleneck within the SGA. (The specific action depends on the latch.)


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