Hyperthreading degrades performance?

Aniruddha Bohra bohra at cs.rutgers.edu
Thu Aug 25 16:34:28 GMT 2005

Justin R. Smith wrote:

>This is in reply to the people who said this because of
>cache-contention. Has anyone benchmarked this?
See the following :
Evaluating the Impact of Simultaneous Multithreading on Network Servers 
Using Real Hardware
Yaoping Ruan, Vivek S. Pai, Erich Nahum, and John Tracey
/Proceedings of the 2005 ACM SIGMETRICS International Conference on 
Measurement & Modeling of Computer Systems (SIGMETRICS '05)


They have an excellent discussion for a web server



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