[Cmake] Win32 "Blended" processor vs Pentium

[Miller, James V (CRD)]

Stephen Alyward mentioned the other day that he has seen as much as a 2X performance improvement if
VC++ is set to create instructions for the Pentium processor as opposed to the "Blended" mode which
is the current default.
 
Has anyone else seen such performance increases switching from "blended" to "pentium"?
 
Should CMake support changing this setting? Or perhaps should we just the default to be compile for
Pentium?  Are we worried about building applications for people with 486's? (I am currently getting
pressure to pull machines with less than a Pentium II off our network :)
 


Jim Miller 
_____________________________________
Visualization & Computer Vision
GE Corporate Research & Development
Bldg. KW, Room C218B
P.O. Box 8, Schenectady NY 12301

millerjv at crd.ge.com < mailto:millerjv at crd.ge.com <mailto:millerjv at crd.ge.com> >
(518) 387-4005, Dial Comm: 8*833-4005, 
Cell: (518) 505-7065, Fax: (518) 387-6981 


 
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://public.kitware.com/pipermail/cmake/attachments/20011105/ae36c97d/attachment.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: Miller, James V (CRD).vcf
Type: application/octet-stream
Size: 392 bytes
Desc: not available
URL: <http://public.kitware.com/pipermail/cmake/attachments/20011105/ae36c97d/attachment.obj>