Re: Intel Hyper-threading -- pointless on the desktop?
From: user1 (anonymous_at_discussions.microsoft.com)
Date: 03/29/04
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Date: Mon, 29 Mar 2004 15:46:08 -0800
To R. McCarty.
Hope you are still out there...
Regarding your last reply, I understand both your responses in 1. and 2.
Let me inquire further if I may.
First, Intel advises that IF a HT compatible system is HT enabled, the Task Manager | Performance tab will show (2) CPU performance graphs. Second, the Device Manager | View by Type and/or Connection will show two CPUs.
Do you concur with the above statements?
Is HT like have a multi processor setup.
How come the XP doesn't recognize it for what it is, a single processor running concurrent tasks because of HT?
Second, MS KB Q-309283 states the following:
" Windows XP and Windows Server 2003 Device Manager list all the supported HAL options in a list when you click Update Driver. Unsupported options are not available. Microsoft Windows 2000 Device Manager permits you to select any HAL type. If you select an incorrect HAL, you may not be able to start Windows 2000, or you may have other issues.
When you install the following HALs on a Windows XP-based or Windows Server 2003-based computer, the following device manager HAL options appear:
"Standard PC", Non-ACPI PIC HAL (Hal.dll)
Standard PC
"MPS Uniprocessor PC", Non-ACPI APIC UP HAL (Halapic.dll)
Standard PC
MPS Uniprocessor
MPS Multiprocessor
"MPS Multiprocessor PC", Non-ACPI APIC MP HAL (Halmps.dll)
Standard PC
MPS Multiprocessor
"Advanced Configuration and Power Interface (ACPI) PC", ACPI PIC HAL (Halacpi.dll)
Standard PC
Advanced Configuration and Power Interface (ACPI) PC
"ACPI Uniprocessor PC", ACPI APIC UP HAL (Halaacpi.dll)
Standard PC
Advanced Configuration and Power Interface (ACPI) PC
ACPI Uniprocessor
ACPI Multiprocessor
"ACPI Multiprocessor PC", ACPI APIC MP HAL (Halmacpi.dll)
Standard PC
Advanced Configuration and Power Interface (ACPI) PC
ACPI Multiprocessor
MPS Multiprocessor
*Note: Microsoft does not support running a HAL other than the HAL that Windows Setup would normally install on the computer."
I have NOT found that Windows XP list(s) all or any of the supported HAL options in a list when you simply click Update Driver in Device Manager.
MY ISSUE(s) IS:
1.) My Device manager lists an AC&PI PC under "Computer" in | Devices by type
2) The driver listed for my AC&PI PC is 'hal.dll' . Per the MS specs above the AC&PI listing driver should be Halacpi.dll.
3.) My Device Manager lists 2-CPU's
4.) My Task manager only provides a performance graph for one CPU. I checked the view tab. CPUs are NOT combined...
So, looks like I have a mess that if I want to fix is going to require a new install...:(
Question. I know if BIOS HT is enabled during install, XP Should choose the correct HAL.
IN this case, would you say the correct HAL is "ACPI Uniprocessor PC" or "ACPI Multiprocessor PC"
Should I trust XP to make the right choice or force a HAL during setup....
thanks for your help in advance. this conversation as taken a bit closer already...
user1
p.martin
atlanta,ga
- Next message: New 2 xp man: "I want to keep my hard drive stuff"
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