Hyperthread Benchmarks on Itanium Servers

There is so much debate about this topic that I thought I should add to this about my experience.

We did a benchmark tests on a similar sized machines on a HP and Fujitsu Itanium Servers. The configurations were similar as both were running Windows Server 2003 IA64 Edition. HP seemed to give better performance with Hyperthreading turned ON while Fujitsu gave better performance with Hyperthreading turned OFF. However, it is important to note that the differences were only marginally different.

Please note that these benchmark results are specific to Protege's applications. You may have a different set of results with your own applications. The best advise I can give is to have your applications tested by HP and other vendors to see whether hyperthreads work for you.