Re: [PATCH] processes with shared vm

[michael@optusnet.com.au]

Why not just print out the address of the 'mm_struct'? 

That lets 'ps' treat the address as a cookie, and
thus count the number of occurences of each vm.

This has the additional advantages of:

* moving the intelligence out to the app
* reducing the kernel size, and
* make it easy to find out exactly which processes
are using which vm. (you just search for all occurences
of the cookie).

Michael.


Terje Eggestad <terje.eggestad@scali.no> writes:
> --=-L6iLOYILsDzljNLIi035
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> --- array.c.orig	Mon Mar 19 21:34:55 2001
> +++ array.c	Thu Aug 16 16:33:56 2001
> @@ -50,6 +50,12 @@
>   * Al Viro & Jeff Garzik :  moved most of the thing into base.c and
>   *			 :  proc_misc.c. The rest may eventually go into
>   *			 :  base.c too.
> + *
> + * Terje Eggestad    :  added in /proc/<pid>/status a VmClones: n
> + *                   :  that tells how many proc that uses the same VM (mm_struct).
> + *                   :  if there are clones add another field VmFirstClone with the
> + *                   :  clone with the lowest pid. Needed for things like gtop that adds 
> + *                   :  mem usage of groups of proc, or else they add up the usage of threads.
>   */