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Subject: Re: howto see shmem
From: Robert Love <rml@tech9.net>
To: =?ISO-8859-1?Q?Mart=EDn_Marqu=E9s?= <martin@bugs.unl.edu.ar>
Cc: Marc Brekoo <kernel@brekoo.no-ip.com>, linux-kernel@vger.kernel.org
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On Wed, 2001-10-24 at 19:27, Mart?n Marqu?s wrote:
> [...]
> ------ Shared Memory Segments --------
> key       shmid     owner     perms     bytes     nattch    status
> 0x00000000 65536     nobody    600       46084     11        dest
> [...]
> I can see 46084 bytes in shared memory used by the apache.
> Am I wrong?

Nope.  Applications know how much the are sharing because they can
easily see what region of memory is shared/mapped into their's.

The reason the kernel can't figure out the net shared memory is because
there is no simple way -- it has to add up the shared regions of all
applications, counting each shared segment only once.  Too much work.

	Robert Love

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