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Linux memory consumption

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Linux memory consumption - Why memory utilities show a little amount of free RAM? How does Linux kernel utilizes free RAM? What is the real amount of free RAM in the system?

Technology
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Linux Memory Consumption Hai Shalom http://www.rt-embedded.com
Licensing ,[object Object],[object Object],[object Object]
Attributions ,[object Object]
Where is all the free RAM? ,[object Object],[object Object]
So, where is it? ,[object Object],[object Object],[object Object]
Continued ,[object Object],[object Object]
The /proc/meminfo ,[object Object]
The /proc/meminfo important info ,[object Object],[object Object],[object Object],[object Object]
Some facts ,[object Object],[object Object]
Some facts - Continued ,[object Object],[object Object]
Flush and invalidate caches ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Flush and invalidate caches ,[object Object],[object Object]
Outcome of dropping caches
Kernel tunables regarding memory ,[object Object],[object Object]
Q&A ,[object Object]
Thank you! ,[object Object],[object Object],[object Object]
Backup slides
The /proc/meminfo in detail ,[object Object],[object Object],[object Object],[object Object],[object Object]
The /proc/meminfo in detail ,[object Object],[object Object],[object Object],[object Object],[object Object]
The /proc/meminfo in detail ,[object Object],[object Object],[object Object],[object Object]

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