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CPU performance on ISA

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CPU performance on ISA - 22.Aug.2007 12:09:57 AM   


Posts: 4
Joined: 12.Jun.2007
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Dear All,

Can anybody whether ISA server is CPU intensive or not ?
If I am using Core 2 duo CPU now and update to Core 2 Quad, will the ISA performance improve ?  i.e. client will feel internet response faster !

How about changing the windows server from 32 bit to 64 bit ? Will that help ?

Thank you for your help.

Post #: 1
RE: CPU performance on ISA - 23.Aug.2007 10:00:41 AM   


Posts: 50013
Joined: 10.Jan.2001
From: Texas
Status: offline
If you move to quad, you have to pay for four licenses.



Thomas W Shinder, M.D.

(in reply to we300b)
Post #: 2
RE: CPU performance on ISA - 23.Aug.2007 10:42:55 AM   


Posts: 6022
Joined: 16.Sep.2004
From: Lebanese in Kuwait
Status: offline

How about changing the windows server from 32 bit to 64 bit ? Will that help ?

IS Server Can not be installed on a 64 bit Machine.

Only its Firewall client can be installed on 64 bit machine.



Tarek Majdalani

Windows Expert - IT Pro MVP
Facebook : https://www.facebook.com/ElMajdal.Net

(in reply to we300b)
Post #: 3
RE: CPU performance on ISA - 30.Aug.2007 11:40:29 PM   


Posts: 801
Joined: 5.Apr.2005
From: sydney
Status: offline
How big is your network?
ISA will run even on a PIII server and you will not really notice any speed improvements on small networks.

(in reply to elmajdal)
Post #: 4
RE: CPU performance on ISA - 18.Oct.2007 4:51:23 AM   
Jason Jones


Posts: 4663
Joined: 30.Jul.2002
From: United Kingdom
Status: offline
Depends on what you are using ISA for. Certain features like SSL bridging, NLB, application-layer filtering will all impact CPU usage to varying degrees.

It may be worth checking out the following doc:


I always find it is better to scale horizonatally (e.g. add more servers) as this provides a lot more benefits than having one "uber-ISA".

I was under the impression that MS licensed on physical processors e,g, if you have dual or quad core CPUs these still count as one physical?

e.g. 1 dual/multi core CPU = 1 lic
2 dual/multi coire CPUs = 2 lic

This is based upon the following: http://download.microsoft.com/download/f/1/e/f1ecd771-cf97-4d98-9a1b-b86e3f24e08f/multicore_hyperthread_brief.doc




Jason Jones | Forefront MVP | Silversands Ltd
My Blogs: http://blog.msedge.org.uk/ and http://blog.msfirewall.org.uk/

(in reply to Sunny.C)
Post #: 5

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