Memory usage for AMD64
Ruslan Ermilov
ru at FreeBSD.org
Fri May 27 01:03:12 PDT 2005
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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