On Wed, 21 Feb 2001, Jonathan Wilson wrote:
> Howdy,
>
> I was just trying to figure out how much RAM one of our servers has and I keep
>getting weird answers. I thought it had either 256 or 512, really, I thought 256. But
>look at the following:
>
> [admin@csc003 admin]$ free -m
> total used free shared buffers cached
> Mem: 505 445 59 212 287 80
> -/+ buffers/cache: 77 427
> Swap: 258 2 256
>
> I thought 505 MB couldn't be right so I tried top:
>
> Mem: 517120K av, 458456K used, 58664K free, 219068K shrd, 294848K buff
>
[snip]
>
> Next I tried a cgi-bin script:
>
> Main Memory : 511 megabytes
>
> It seems to get it's info from the size of /proc/kcore
>
> Can anyone explain why this isn't working out to exactly 512 MB?
> After all this is a computer - is should be precise right down to
> the byte.
>
> ----------------------------------------------------
> Jonathan Wilson
> System Administrator
>
>
You forgot the memory taken up by the kernel. This does not show up in
with the free command. I have seen bigger discrepencys when you have
onboard video - some systems use part of the main memory for video
memory, and you select how much video ram in your BIOS.
Mikkel
--
Do not meddle in the affairs of dragons,
for you are crunchy and taste good with ketchup.
_______________________________________________
Redhat-list mailing list
[EMAIL PROTECTED]
https://listman.redhat.com/mailman/listinfo/redhat-list
