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blaQx's avatar
blaQx
Aspirant
Nov 18, 2022
Solved

upgraded ram on nas - what is inactive memory?

I upgraded the memory on my Readynas ultra 6 to 2gb.

When i check the istat all the memory appears there however i cant figure out what inactive memory is? and why its over 1gb? while free memory is roughly 100mb. Check my attached screenshot.

  • blaQx wrote:

    When i check the istat all the memory appears there however i cant figure out what inactive memory is? 
    • Wired memory — This is memory that applications or the system needs immediate access to, so it can’t be cached to disk. It will vary depending on what applications you’re using.
    • Active memory — This is memory that is actively being used.
    • Inactive memory — This memory is no longer being used and has been cached to disk. It’ll remain in RAM until another application needs the space.
    • Free memory — This memory is not being used.

2 Replies


  • blaQx wrote:

    When i check the istat all the memory appears there however i cant figure out what inactive memory is? 
    • Wired memory — This is memory that applications or the system needs immediate access to, so it can’t be cached to disk. It will vary depending on what applications you’re using.
    • Active memory — This is memory that is actively being used.
    • Inactive memory — This memory is no longer being used and has been cached to disk. It’ll remain in RAM until another application needs the space.
    • Free memory — This memory is not being used.

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