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How much memory I'm really using

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I see all the time my unraid has cached memory, I downgraded from 16 to 8gb and all I have is plex and 1VM as a backdoor, but I'm not even using it and my server is always like this. Is there I can see really what's being cached?



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Linux will always use any free memory for caching purposes to try and help with I/O performance.   This is managed internally within the Linux kernel and not something that users have much control over.

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The netdata app will show how much is actually used (and by what)

Sent from my NSA monitored device

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