RE: 2 Dual Core processors and Windows 2000 Server, standard edition?
- From: v-kzhao@xxxxxxxxxxxxxxxxxxxx (Ken Zhao [MSFT])
- Date: Fri, 30 Sep 2005 03:28:12 GMT
Hello Alex,
Thank you for using newsgroup!
As far as I know, Windows 2000 Server does not distinguish between physical
and logical processors on systems enabled with Hyper-Threading Technology;
Windows 2000 simply fills out the license limit using the first processors
counted by the BIOS. For example, when you launch Windows 2000 Server
(4-CPU limit) on a four-way system enabled with Hyper-Threading Technology,
Windows will use the first logical processor on each of the four physical
processors, as shown in Figure 2; the second logical processor on each
physical processor will be unused, because of the 4-CPU license limit.
(This assumes the BIOS was written according to Intel specifications.
Windows uses the processor count and sequence indicated by the BIOS.)
For more information, you may refer to the following article:
Microsoft Windows-Based Servers and Intel Hyper-Threading Technology
<http://www.microsoft.com/windows2000/server/evaluation/performance/reports/
hyperthread.asp>
Hope that helps!
Thanks & Regards,
Ken Zhao
Microsoft Online Partner Support
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| NNTP-Posting-Date: Thu, 29 Sep 2005 10:59:05 -0500
| From: Alex <nospam@xxxxxxxxxx>
| Newsgroups: microsoft.public.windows.server.general
| Subject: 2 Dual Core processors and Windows 2000 Server, standard edition?
| Date: Thu, 29 Sep 2005 11:59:05 -0400
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| Our servers are currently running Windows 2000 Server on motherboards
| equipped with two CPUs. Because of Hyperthreading Windows sees them
| as having 4 virtual CPUs.
|
| Since each new Dual Core Xeon CPU will be treated by Windows as 4
| virtual CPUs, benefiting from both the Hyperthreading and Dual Core
| technologies, will our servers be unable to take full advantage of the
| Dual Core Xeon technology because Win2K-std ed can only handle a
| maximum of 4 CPUs?
|
|
.
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