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How to Check Whether a System is Under Memory Pressure (Doc ID 1502301.1)

Last updated on FEBRUARY 26, 2020

Applies to:

Linux OS - Version 2.6.18-8 and later
Oracle Cloud Infrastructure - Version N/A and later
Linux x86
Linux x86-64

Goal

After reading this KM note, you should be able to determine whether a system is under memory pressure. The correct interpretations of common command-line tools are provided.

Solution

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In this Document
Goal
Solution
 How To Properly Check System Memory Usage
 Resist The Temptation To Use The drop_caches Control.
 Check For Active Swap Space Usage
 Do Not Adjust The Swappiness
 Check The /proc/meminfo Report
 Check The Resource Limits
 Check The System Log For Out-Of-Memory (OOM) Kills
References


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