why did Ubuntu turn off kernel preemption in Edgy?

Soren Hansen sh at linux2go.dk
Wed Nov 29 18:19:59 GMT 2006

On Wed, Nov 29, 2006 at 12:27:25PM -0500, Phillip Susi wrote:
> > doesn't mean that humans are unable to see the difference. If you
> > point a film camera at a wheel and accelerate it, viewers will see
> > the wheel speed up, slow down and then reverse. The brain is able to
> > process information at a greater rate than 24 frames per second, and
> > the missing information is noticed under certain circumstances.
> No, this is the beat again.  You are being shown images that show the
> wheel more than 180 degrees out of phase with the previous and next
> images, which is the same as if it were going backwards at a slower
> rate.  If the wheel is spinning at 23 rpm and the film is 24 fps, then
> you get a 1 Hz beat.

I believe Matthews point is the fact that since you perceive a turning
wheel differently when viewed with our own eyes than when looking at the
same thing on a television screen indicates that your eyes are able to
perceive substantially more than the 24 fps a PAL TV delivers.

| Soren Hansen    | Linux2Go                  | http://Linux2Go.dk/ |
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