June 23, 2003 at 3:52 pm
I know I've seen it before and even heard rumors around my company,but has anyone done benchmarking with and without hyper-threading? Any references to performance of SQL Server being higher or lower than without hyper-threading?
TIA, Steve
Steve Jones
June 24, 2003 at 1:31 am
HI Steve, I haven't done any benchmarking myself but I remember an article telling that hyperthreading gives you about 1.2 times the performance of a single CPU. Unfortunately I can't find the site at the moment, but if I find it I will post the link.
M
[font="Verdana"]Markus Bohse[/font]
June 24, 2003 at 2:49 am
Hi Markus,
quote:
HI Steve, I haven't done any benchmarking myself but I remember an article telling that hyperthreading gives you about 1.2 times the performance of a single CPU. Unfortunately I can't find the site at the moment, but if I find it I will post the link.
did you mean this one?
http://www.infoworld.com/article/02/02/25/020225plxeon_1.html
Cheers,
Frank
--
Frank Kalis
Microsoft SQL Server MVP
Webmaster: http://www.insidesql.org/blogs
My blog: http://www.insidesql.org/blogs/frankkalis/[/url]
June 24, 2003 at 11:38 am
Thanks for the link. That is interesting. I thought people were saying that performance had decreased in some benchmarks, but I haven't been able to find anything.
Steve Jones
June 25, 2003 at 3:04 am
Steve,
There have been some rumours that hyperthreading in Windows XP SP1 did have a negative impact on performance. The culprit apparently was the UnmapViewOfFile function.
See http://support.microsoft.com/default.aspx?scid=kb;en-us;815227
June 25, 2003 at 9:16 am
I saw that one. Was concerned about W2K server performance. Most of the MS information is now focusing on W2K3, so I thought I might be missing something.
Steve Jones
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