Hyper-Threading Technology, New Feature of Intel Xeon Processor White Paper 12
167T-0202A-WWEN
• Microsoft Outlook 2000
• Microsoft PowerPoint 2000
• Microsoft Word 2000
• Netscape Communicator 6.0
• WinZip 8.0
Internet Content Creation:
• Adobe Photoshop 6.0
• Adobe Premiere 6.0
• Macromedia Dreamweaver 4
• Macromedia Flash 5
• Microsoft Windows Media Encoder 7
Analysis
SYSmark 2001 is a horizontal benchmark and runs only one application at a time. Therefore only
the application thread is running for any given window time. To run the same benchmark on the
true MP system does not yield any performance gain or degradation since most of the time the
other processor is idle. In this case, when the Hyper-Threading technology is enabled to emulate
multi-processing, performance is degraded about 5% since the application thread now is shared
and competing with the OS threads for the same processor resources. That does not happen with a
true multiprocessor system since each of the processors has its own resources. See Figure 10.
SYSmark 2001 on Windows XP
188
212
167
200
222
180
0
50
100
150
200
250
Higher is better
Enable
188 212 167
Disable
200 222 180
Sysmark Rate
Internet Content
Creation
Office Productivity
Figure 10
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