I may remember this wrong, or I might remember something from another
Windows version or another OS altogether, but I have the faint memory
of reading something about Windows 2000 having some truely braindead
task scheduling principle that a process cannot get more than 75% of
the CPU, no matter what.
  That is, if you have only one CPU-intensive task running, Windows 2k
will keep the CPU idle 25% of the time for some braindead reason.

  If this what I remember is right, then in practice this means that you
can never render with POV-Ray at full speed in Windows 2000.
  I suppose the only way you could get 100% of CPU is to run two instances
of POV-Ray rendering eg. halves of the image. (Unless Windows 2000 has
some other weird limitation with regard to this.)

  Hyperthreading doesn't have anything to do with this.

-- 
plane{-x+y,-1pigment{bozo color_map{[0rgb x][1rgb x+y]}turbulence 1}}
sphere{0,2pigment{rgbt 1}interior{media{emission 1density{spherical
density_map{[0rgb 0][.5rgb<1,.5>][1rgb 1]}turbulence.9}}}scale
<1,1,3>hollow}text{ttf"timrom""Warp".1,0translate<-1,-.1,2>}//  - Warp -

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