RE: 2.4.0 and shared memory
great info, but ... how can i see the 'actual' memory use when running 2.4.0
?
-----Original Message-----
From: Phil Brutsche [mailto:pbrutsch@tux.creighton.edu]
Sent: Thursday, January 18, 2001 4:04 PM
To: Amal Phadke
Cc: Debian User List
Subject: Re: 2.4.0 and shared memory
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A long time ago, in a galaxy far, far way, someone said...
> Hi all,
>
> I am using Potato with 2.4.0 right now. I have noticed that 'free'
> command now reports 0 shared memory and 0 swap usage. With kernel
> 2.2.18, it used to report few megabytes of shared memory. My box has
> half a gig of RAM, but when I was using 2.2.18 kernel, the system used
> at least some swap space, especially after I ran one of my memory
> hungry Fortran programs or after creating a CD image. But now it's 0
> no matter. Has anyone else noticed this behavior?
This is normal for 2.4. Some fields in /proc/meminfo (which 'free' uses
to gather it's information) are not longer used, thus read 0 (totally
removing those unused fields will totally break 'free'). 'free' just
doesn't know that those fields are used any more.
2.4 also totally re-did the VM subsystem, and moves unused stuff to swap
much less often. Primarily because the VM subsystem is more efficient.
- --
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Phil Brutsche pbrutsch@tux.creighton.edu
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