--- Greg Troxel <gdt@ir.bbn.com> wrote:

> 
> ps alx -k rss
> ps alx -k vsz
> 
> Look at VSZ and RSS.
> 
> From ps(1):
> 
>      rss     the real memory (resident set) size of the process (in
> 1024 byte
>              units).
> 
>      vsz         virtual size in Kbytes (alias vsize)
> 
> 
> Generally vsz-rss is memory in the address space of a process that
> isn't backed by real memory, and thus in swap space, probably with
> some fuzz.

Well this is the logical way to think about it...but I notice more than
often that sometimes vsz < rss when you look at the output of ps for
some processes. How do you interpret this situation???


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