Reducing CPU usage

First I better say that I didnt make this discovery,
It was posted here elsewhere but I thought that it would
very important or interesting to some people.

Adding this routine reduced CPU usage by 5%-15% instead of
full-on 100% even if your code is just delaying till the
next frame inside a timing loop.


New code used to keep my emulator at 60-FPS:

timer#=MilliSecs()
f=Int(timer#-oldtimer#)
f=16-f
If f>0 Then Delay f
oldtimer#=MilliSecs()


RESULTS:

1.lower CPU cooling fan speed and therefore less noise.
2.lower power consumption for notebooks.
3.lower CPU core temperatures.

If you want to see a working example of this try my Emulator2001 here:
adding an extra 1 millisecond delay further reduces CPU usage down to 75% thats not bad compared to 100%

http://www.gstsoftware.co.nz/

I use something similar to this in my games. I set a max fps constant, and if a frame renders faster than one frame should take at that fps then I delay it to pad it out to the right time.

even if you're only adding "Delay 1" to a timing loop, it will unlock most CPU time.