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upgraded ram on nas - what is inactive memory?

blaQx
Aspirant

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.
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StephenB
Guru

Re: upgraded ram on nas - what is inactive memory?


@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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StephenB
Guru

Re: upgraded ram on nas - what is inactive memory?


@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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blaQx
Aspirant

Re: upgraded ram on nas - what is inactive memory?

Thank you 🙂
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