Memory usage for AMD64

[Ruslan Ermilov]

On Thu, May 26, 2005 at 11:44:48PM -0400, Francisco Reyes wrote:
> Is the memory usage on AMD64 comparable to i386?
> 
> A current i386 machine that I plan to replace is using less than 128MB of 
> RAM out of the 256MB installed. The swap is less than 500K. The only 
> processes are SSH, postfix and samba.
> 
> Will an AMD64 setup be in the same memory usage range? Under 128MB.
> 
> I am planning on getting 256MB anyways, but want to make sure that AMD64 
> doesn't have a bigger memory footprint for the OS and that apps don't use 
> significantly more memory when compiled under AMD64.
> 
I'd estimate it's 1.5-2 times more on AMD64 than on i386.  At least
simple tesing of binary sizes and memory sizes of simple progs shows
the difference in this range.


Cheers,
-- 
Ruslan Ermilov
ru at FreeBSD.org
FreeBSD committer
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