Linux : Difference Between Physical RAM and Actual Installed Memory

(Doc ID 2325495.1)

Last updated on NOVEMBER 22, 2017

Applies to:

Linux OS - Version Oracle Linux 6.0 and later
Linux x86-64


  1. To understand why less memory is seen from the 'free' command output compared to what has been actually allocated to the server .
  2. How to calculate the Actual Total memory ?



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