[THIN] Re: HP Proliant Server BIOS setting for CPU performanc e.....
- From: "Steve Greenberg" <steveg@xxxxxxxxxxxxxx>
- To: <thin@xxxxxxxxxxxxx>
- Date: Wed, 30 Nov 2005 09:52:07 -0700
I second that emotion :)
Steve Greenberg
Thin Client Computing
34522 N. Scottsdale Rd. suite D8453
Scottsdale, AZ 85262
(602) 432-8649
(602) 296-0411 fax
steveg@xxxxxxxxxxxxxx
_____
From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf
Of Joe Shonk
Sent: Wednesday, November 30, 2005 9:13 AM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: HP Proliant Server BIOS setting for CPU performanc
e.....
Of course that quote doesn't specify which OS. W2k has some experimental
code for HT, but it a general best practice to turn it off. For most
situations on a W2k box you will break even. Some you could lose 5-15% in
performance.
With W2k3 you should turn it on.
Joe
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From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf
Of Schneider, Chad M
Sent: Wednesday, November 30, 2005 8:55 AM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: HP Proliant Server BIOS setting for CPU performanc
e.....
From that white paper?
"It is in this real-world environment
that leads us to weigh more heavily the results the results of "User Task"
testing
than that of the "CPU Intensive" applications. Thus we would recommend to
customers that they enable Hyper-Threading on their servers, assuming
licensing
and upgrade issues do not exist. On
average, we expect customers to
experience an average of 15% (ranging at
times from equal performance to 30%)
improved performance in real-world
situations when Hyper-Threading is
enabled on their processors."
_____
From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf
Of Tim Mangan
Sent: Wednesday, November 30, 2005 9:23 AM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: HP Proliant Server BIOS setting for CPU performanc
e.....
See whitepaper http://www.tmurgent.com/WhitePapers/WP_HyperThreading.pdf
If you don't have a problem, then great.
_____
From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf
Of Schneider, Chad M
Sent: Wednesday, November 30, 2005 9:52 AM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: HP Proliant Server BIOS setting for CPU performanc
e.....
Huh.been doing it for years..
_____
From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf
Of Tim Mangan
Sent: Wednesday, November 30, 2005 8:01 AM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: HP Proliant Server BIOS setting for CPU performanc
e.....
You don't want to use Hyperthreading on 2000 - there are some issues on that
OS. XP/2003 or above.
As to the mem/IO switch - I have to believe that memory is the best setting.
I don't know what the bios setting actually does, but presumably it is doing
something like playing with device priorities at the bus level.
tim
_____
From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf
Of Schneider, Chad M
Sent: Wednesday, November 30, 2005 8:39 AM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: HP Proliant Server BIOS setting for CPU performanc
e.....
I guess I have not noticed enough of an issue with hyperthreading, to turn
it off.
_____
From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf
Of M
Sent: Tuesday, November 29, 2005 3:25 PM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: HP Proliant Server BIOS setting for CPU performance.....
Hello there,
I found the settings on our BL20Ps last year when i was testing
Hyperthreading on Windows 2000.
I was checking the performance of a 16 bit application and then another
server with our core apps on.
I was most disappointed when i noticed zero difference when comparing with
other identical servers (save the bios change).
We had around 30 users for testing per box
----- Original Message -----
From: Jeff Pitsch <mailto:jepitsch@xxxxxxxxx>
To: thin@xxxxxxxxxxxxx
Sent: Tuesday, November 29, 2005 5:08 PM
Subject: [THIN] Re: HP Proliant Server BIOS setting for CPU performance.....
See that's what I was thinking. all the I/O from the sessions. Mouse and
keyboard in particular.
Jeff
On 11/29/05, Matthew Shrewsbury <MShrewsbury@xxxxxxxxxxxxxxx> wrote:
Hmmm I/O is always the slowest so set it for best I/O. Of course I know
nothing on the subject but it is my best thought.
Matthew Shrewsbury, MCSE+Internet MCSE 2000 CCA Server+
Senior Network Administrator
-----Original Message-----
From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf
Of Jeff Pitsch
Sent: Tuesday, November 29, 2005 11:02 AM
To: thin@xxxxxxxxxxxxx
Subject: [THIN ] HP Proliant Server BIOS setting for CPU performance.....
Ok, I just came across this in the BIOS settings when I went to turn off
hyperthreading. You can set the performance for the CPU to 'optimized for
memory' or 'optimized for I/O'. It is defaulted to 'optimized for memory'.
Anyone have any thoughts on this?
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