White Paper
February 2002
167T-0202A-WWEN
Prepared by:
Workstations Division
Compaq Computer Corporation
Contents
Introduction................................. 3
Hyper-Threading Technology .... 3
Advantages ............................... 3
Overview ................................... 4
Compaq Evo Workstations
W6000 and W8000....................... 8
Enabling/Disabling Hyper-
Threading.................................. 8
Hyper-Threading and
Microsoft Windows XP .............. 9
Hyper-Threading and
Microsoft Windows 2000 ......... 10
Performance Analyses ............. 11
SYSmark 2001 ........................ 11
Winstone ................................. 13
Pro/ENGINEER 2001i²............ 14
Excel Benchmark .................... 16
Solid Edge V10 ....................... 17
Montecarlo Benchmark ........... 18
Verilog Compiled Simulation
Benchmark .............................. 19
Summary ................................... 20
Appendix A —
Enable/Disable Hyper-
Threading .................................. 22
Appendix B — Verify HAL
Version ...................................... 28
References ................................ 35
Hyper-Threading Technology,
New Feature of Intel Xeon
Processor
Abstract: New refreshes of Compaq Evo Workstations W6000 and
W8000 will feature the leading edge Intel Xeon processor with
Hyper Threading technology. This new processor is fabricated with
the latest .13µ (micron) technology, 512KB-L2 cache, and the ability
to support frequencies ranging from 1.8 GHz to greater than 2.6
GHz. This processor also includes support for multi-threaded
execution, known as Hyper-Threading technology.
The purpose of this paper is to provide an overview of Hyper-
Threading technology, to analyze and study the performance impacts
of the system with Hyper-Threading technology, enabled as well as
disabled, and to provide the technical information and benefits of
this feature.
