[THIN] Re: /3GB or /PAE
- From: "Evan Mann" <emann@xxxxxxxxxxxxxxxxxxxxx>
- To: <thin@xxxxxxxxxxxxx>
- Date: Sat, 30 Jul 2005 09:45:54 -0400
Dell has been putting EM64T chips in servers for a while now. All
1850's and 2850's have them, which my 3 Citrix boxes are. Anyone have
any info on how much performance gain one would expect moving to 64bit
compatible version on the same hardware?
-----Original Message-----
From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On
Behalf Of Rick Mack
Sent: Saturday, July 30, 2005 12:13 AM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: /3GB or /PAE
Hi,
More than a performance hit. The /3GB switch reduces the paged pool size
quite significantly. This doesn't matter on a SQL or Exchange server
where you're not running too many processes, but on a terminal server
you'll be playing with fire.
As adam wrote, the /PAE does have a siginificant performance hit,
particularly if your system does signficant paging.
The 64-bit compatible version of Presentation Server will be out in 1-2
months, or if you want to have a play the Technical Release is available
for download right now.
If you've got new systems (just about anyone but Dell) then it's highly
likely that the Intel Xeon will be an EM64T chip which is 64-bit
capable.
Then your only memory problem will be how much can you cram into the
box?
regards,
Rick
--
Ulrich Mack
Volante Systems
On 7/30/05, Evan Mann <emann@xxxxxxxxxxxxxxxxxxxxx> wrote:
>
>
> On a Citrix App server running PS4 on 2003 SP1, with 4 gigs of
> physical RAM, should the /3GB and/or the /PAE switch be used in the
> boot.ini ?
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