He swap usage, lots of free ram

rossd

New Member
Nov 16, 2023
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Sorry if this is a daft question, but I thought swap was used if the system was low on ram. My ram usage is generally pretty good:

1700124151541.png

But my swap upsate is always really high?

1700124108219.png

Is this something I should worry about?
 
Sorry if this is a daft question, but I thought swap was used if the system was low on ram. My ram usage is generally pretty good:

But my swap upsate is always really high?
And yes, this has been discussed many times on the forum. Feel free to search it a bit.
Is this something I should worry about?
No, swap is used if Linux "feels like" the "unused" memory can be better used for file cache (which shows as unused because it can be make available instantly). Your system looks fine.
Only when Linux starts also reading from swap a lot, so called "thrashing" with high I/O delay, then there is a problem. The swap-line is unfortunately red because it uses the standard color scheme.
 
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I really appreciate you answering despite that being the case. I saw red so worried. Knowing it looks fine is what I was after! Many thanks!
 

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