Please register or login. There are 0 registered and 1094 anonymous users currently online. Current bandwidth usage: 326.30 kbit/s December 04 - 07:10am EST 
Hardware Analysis
Forums Product Prices

  Latest Topics 

More >>


  Hyper-Threading On The Desktop 
  Nov 14, 2002, 02:00am EST 

Benchmarks: Multitasking Cont.

By: Sander Sassen" alt="Hyper-Threading Technology">

SPEC's SPECviewperf software is a high-end CAD/CAM/CAE benchmark that we make use of regularly as a video card benchmark, however it is also very CPU-intensive. It runs a total of six different tests; only one is shown here. Again, we see no difference between the Pentium 4 with or without Hyper-Threading when the application is run by itself, but when we attempt to run a second process at the same time (in this case, we used Windows Media Player to copy and encode music from an audio CD), the Hyper-Threaded CPU is able to share its execution resources such that the total time to complete both tasks is reduced noticeably." alt="Hyper-Threading Technology">

However, Hyper-Threading isn't always going to make a difference, even when two distinct processes are running simultaneously. We encoded the same audio CD while running another of SPECviewperf's tests, and observed no noticeable difference whatsoever.

In summary, what we want you to take away from all these benchmarks is that, in fact, the performance of a system outfitted with a Hyper-Threading Pentium 4 cannot be simply summarized. Anyone who says it can isn't presenting the entire picture. There are simply too many variables, too many possible situations, applications, configurations, and so on. There are situations in which a Hyper-Threading Pentium 4 can achieve extraordinary performance, we measured up to +40%, and there are probably an equal number in which it will make no performance difference at all. If considering a system based on a Hyper-Threading Pentium 4, the wisest course of action is to explore your intended use, determine whether Hyper-Threading will actually make a difference in your specific case, and then decide if it's worth the costs.

1. Introduction
2. SMT and SMP
3. Scheduling and Caching
4. Proformance or Performance
5. Hardware and Software
6. Benchmarks
7. Benchmarks: Multitasking
8. Benchmarks: Multitasking Cont.
9. Summary
10. Appendix

Discuss This Article (4 Comments) - If you have any questions, comments or suggestions about the article and/or its contents please leave your comments here and we'll do our best to address any concerns.

Rate This Product - If you have first hand experience with this product and would like to share your experience with others please leave your comments here.



  Related Articles 

A weekly newsletter featuring an editorial and a roundup of the latest articles, news and other interesting topics.

Please enter your email address below and click Subscribe.