Linux memory usage and swap files

Jason Gurtz jason at
Fri Jul 9 14:12:09 PDT 2004

On 7/9/2004 15:18, Ian Molton wrote:

> On Fri, 09 Jul 2004 14:36:54 -0400
> Jason Gurtz <jason at> wrote:
>> Are you really seeing the Linux like behavior of allocating every last
>> drop of RAM for a file system cache on a FreeBSD box?  On my venerable
>> 4.5-RELEASE (about 2.5 years old) box, top reports:
>> Mem: 8580K Active, 169M Inact, 67M Wired, 8K Cache, 61M Buf, 256M Free
> How much total? Im not familiar with the way FreeBSD allocates RAM but
> theres a good 61M of buffers there by the look of it...

Yea, it buffers some--what I like to call a sane amount.  Basically the
ammount of RAM used is the Active + Inactive + Wired + Free.  I think
that doesn't include the RAM taken by the kernel Image or parts of the
BIOS.  This is a 512MB machine.




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