Physical memory present on a machine

Mike Kearey mkearey at redhat.com
Sun Apr 29 23:03:27 UTC 2007


Nilesh Bansal wrote:
> Hi all,
> 
> We have a machine running RHEL3 AS.
> Linux manhattan.db.toronto.edu 2.4.21-47.ELsmp #1 SMP Wed Jul 5
> 20:30:47 EDT 2006 i686 athlon i386 GNU/Linux
> 
> I think that the machine has 8GB RAM, but since it is running 32-bit
> OS only 4GB is available. Is there a way I can find out if the machine
> has 8GB or 4GB ram present physically.

Hi.

My understanding is that the athlon kernel variant is limited to 4G even
for the SMP build.

To be able to utilise more, install the i686 kernel.

To check exactly what kernel you have :

rpm -qa --queryformat="%{NAME} %{VERSION} %{ARCH}\n" kernel\*

The i686 kernel may have a slight preformance hit running on th athlon CPU.

Cheers




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