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How to detect an Hyper-Threading or/and a Multi-Core CPU on Oracle Linux (Doc ID 462410.1)

Last updated on AUGUST 04, 2018

Applies to:

Linux OS - Version Enterprise Linux 4.0 to Oracle Linux 5.0 [Release RHEL4 to OL5]
Linux x86-64
Linux x86


This article will assist you to determine if your system is using Hyper-Threading and/or Multi-Core CPU


This note is intended for customers who are Linux system administrators or Linux DBAs with sysadmin skills


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In this Document
  Hyper-Threading Technology (HT)
Multi-Core CPU
 Detecting Hardware Multi-threading and Multi-core topology in 2.6 Linux
 Informations exported by ‘proc’ file system
 - Example of Hyper-Threading CPU
  - Example of Multi-Core CPU
 Informations exported by ‘sysfs’ file system 

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