[ale] Hyperthreading

[James P. Kinney III]

On Sat, 2004-08-14 at 23:01, Christopher Fowler wrote:
> On the new machine I'm installing FC2 on it is a Intel PIV 3.0Ghz.  It
> supports Hyperthreading.  Should I disable it?  How do I use it?

A performance note: I have one P4 w/hyperthreading. There are so many
things it does slower with HT on than off that I finally turned it off.

The biggest slow-up was calculating the my digital signature on my
email. I would have to dig out the specs on my cpu  (it's an earlier
version) and do some hard timing tests, but a digital signature on a
short email would take 2-3 seconds with HT on and under 1 second with it
off. It may be a cache size issue that is causing the processor to
thrash.
> 
> Thanks,
> Chris
> 
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> http://www.ale.org/mailman/listinfo/ale
> 
> !DSPAM:411ed26c256471811727779!
-- 
James P. Kinney III          \Changing the mobile computing world/
CEO & Director of Engineering \          one Linux user         /
Local Net Solutions,LLC        \           at a time.          /
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GPG ID: 829C6CA7 James P. Kinney III (M.S. Physics)
<jkinney at localnetsolutions.com>
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