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Oracle Linux: Performance Regression with IBRS Enabled during Kernel Idle (Doc ID 2517731.1)

Last updated on MAY 24, 2020

Applies to:

Linux OS - Version Oracle Linux 6.7 with Unbreakable Enterprise Kernel [4.1.12] and later
Linux x86-64

Symptoms

A Slight performance degradation might be observed due to IBRS (Indirect Branch Restricted Speculation) enabled on Sibling Hardware threads

Cause

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In this Document
Symptoms
Cause
Solution

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