[ale] Hyperthreading

[James P. Kinney III]

On Mon, 2004-08-16 at 07:32, James Sumners wrote:
> I would but the box does more than just compile things.

Yep. I've decided I need _two_ of every machine so I can have a test
version and a production version.

That decision has not been approved by "She who must be obeyed". :(
> 
> On 15 Aug 2004 23:17:30 -0400
> "James P. Kinney III" <jkinney at localnetsolutions.com> wrote:
> 
> > On Sun, 2004-08-15 at 22:51, James Sumners wrote:
> > > That is very odd. I have a box with dual 2.0Ghz HT processors and it can
> > > compile MySQL in four minutes and some change.
> > 
> > You have two physical processors. Some things do work OK with HT. Some
> > aspects of program compiling should while others should thrash the
> > cache. Test this by turning off the HT in the bios and recompile from a
> > fresh MySQL tarball and time it. Then reboot an turn the HT back on and
> > do it again and publish your results. 
> > 
> > Even better would be to add a third step of disabling one processor and
> > running just HT and get that timing data.
> > 
> > And while you're at it, turn of HT and do it all a fourth time just for
> > a baseline.
> > 
> > None of my dual CPU machines are even _close_ in capabilities so I can't
> > test anything like this with my rigs. (How does one compare a dual
> > Opteron 1.4 GHZ with a dual PIII 550 and a PIV 2.2GHz w/HT?)
-- 
James P. Kinney III          \Changing the mobile computing world/
CEO & Director of Engineering \          one Linux user         /
Local Net Solutions,LLC        \           at a time.          /
770-493-8244                    \.___________________________./
http://www.localnetsolutions.com

GPG ID: 829C6CA7 James P. Kinney III (M.S. Physics)
<jkinney at localnetsolutions.com>
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