Does it make sense to have the kernel use a swap partition?
jimcolt at gmail.com
Thu Jul 24 21:42:28 CEST 2008
top(1) shows data from the same source as free(1) does.
/proc/vmstat is the source.
On Thu, Jul 24, 2008 at 12:14 PM, Nils R Grotnes <nils.grotnes at gmail.com>
> Hi Tim.
> > 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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