procps and top output
Joe Buehler
jbuehler@hekimian.com
Wed Apr 30 20:19:00 GMT 2003
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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