Does it make sense to have the kernel use a swap partition?
Nils R Grotnes
nils.grotnes at gmail.com
Thu Jul 24 20:14:12 CEST 2008
> You're not subtracting buffered and cached data. Linux aggressively
> buffers written data and caches read data for potential future use.
> This data is easily evicted from ram (usually without requiring
> anything to be written to more permanent storage), thus not negatively
> affecting performance.
> For various reasons, Linux's accounting of how much ram is in use
> isn't quite accurate, but you'll get a much closer number by running
> 'free' in the terminal and looking at the "-/+ buffers/cache" line.
Htop is quite good at showing all three uses of memory, well worth a look.
Don't know how accurate it is though. Any thoughts on that?
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