Marlier, Ian wrote:
Yes, enable it if you want to take advantage of it. However, of late there have been some interesting articles that suggest that turning hyperthreading *off* may be faster than having it on.
http://news.zdnet.co.uk/0,39020330,39237341,00.htm
which is linked to from
http://hardware.slashdot.org/article.pl?sid=05/11/19/1358218
Thanks for adding the /. link as well. It has some good comments (if you read at +4, like I do.) Seems like HT is bad for I/O-dominant workloads that don't take HT into account, and good for workloads with many applications running at the same time that don't thrash the L2 cache. Joachim -- =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Joachim Schrod Email: jschrod@acm.org Roedermark, Germany