Re: procps and top output

[Joe Buehler <jbuehler at hekimian dot com>]

Chris January wrote:

> > It's the output of "top", and yes, I see the problem too. The "size"
> > column is always around 400 (+/-) MB, however large or small the process.
> >
> > The RSS size is correct - it matches the resident set size in the
> > Windows task manager process display. It's only the "size" (== "VM size"
> > in task manager?) that seems to be off.
>
> I noticed this when I was porting procps but I never had time to investigate
> exactly why this is so. It might be because VM size also includes DLLs and
> file mappings.

I just noticed something that might be related to this (old) post.  Cygwin
reserves 400 MB of virtual memory, I assume for the heap.  It commits only
a little.  So the large sizes shown by (e.g.) "top" are probably because
they are memory that is "reserved", while memory that is "committed" is
probably what is really wanted.
--
Joe Buehler



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