Re: i386 with PAE or AMD64 on PowerEdge with 4G RAM

On Mon, Jun 18, 2007 at 05:15:30PM -0400, Martin Turgeon wrote:
2007/6/18, Jeremy Chadwick <koitsu@xxxxxxxxxxx>:

On Mon, Jun 18, 2007 at 01:03:44PM -0400, Martin Turgeon wrote:
I just receive 2 PowerEdge servers (a 1950 and a 860) both with 4G of
RAM. I
installed FreeBSD 6.2 Release i386 on both of them. Unfortunately, only
3,5G
is recognized on the 860 and 3,3G on the 1950.
dmesg on 860:
real memory = 3757834240 (3583 MB)
avail memory = 3678318592 (3507 MB)

I am facing a difficult decision. Should I use i386 with PAE enabled in
the
kernel (I read a lot of warnings using it) or should I go with AMD64?
Which
branch should I follow?

Based on what I've read from some of the porters and miscellaneous
others, generally-speaking there's too many issues with amd64 (in the
sense of 32-bit vs. 64-bit compatibility -- not the fault of the kernel
or otherwise) to consider it worth switching to.

I personally don't run 64-bit OSes because most developers still use
32-bit machines and don't have a way to develop/test in 64-bit
environments.

That said, I'd recommend you stick with i386 + PAE, simply for
guaranteed application compatibility.


My setup is fairly standard (as I described), should I expect problem with
64 bit version of these programs?

No. I'd go with amd64 personally.

Kris
_______________________________________________
freebsd-hackers@xxxxxxxxxxx mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-hackers
To unsubscribe, send any mail to "freebsd-hackers-unsubscribe@xxxxxxxxxxx"

Relevant Pages

  • Dell PE 1950 - Only seeing 3.2 gigs of ram
    ... It's configured with 4 gigs of ram. ... However when I boot i get the following right before DMESG ... real memory = 3489300480 ...
    (freebsd-questions)
  • Re: i386 with PAE or AMD64 on PowerEdge with 4G RAM
    ... real memory = 3757834240 ... Should I use i386 with PAE enabled in the ... I personally don't run 64-bit OSes because most developers still use ... PCI address space. ...
    (freebsd-hackers)
  • kernel errors : AE_NOT_FOUND
    ... I recently notice these errors in my dmesg. ... Do I need to worry about this? ... real memory = 268419072 ... To unsubscribe, ...
    (freebsd-stable)