[Gllug] PS - memory use

[Richard Jones]

On Thu, Mar 17, 2005 at 03:33:01PM +0000, Alain Williams wrote:
> Just to make it more complicated I don't want to double count, if I
> have several httpd processes I don't want to add up the memory that
> contains the code several times but once. I want to count shared
> memory (primarily .so files).

This isn't so simple.  For instance, how are you going to account for
copy-on-write mappings between processes?  These show up in
/proc/*/maps, but not in a way which tells you how many pages have
actually been copied.

Rich.

-- 
Richard Jones, CTO Merjis Ltd.
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