Why the time differece between a timed loop will always be 32ms even I have set the period to be 10ms??

[pincpanter]

The timing is guaranteed only if:
- you're running a real-time operating system (Windows definitely is not)
- the code into the loop can be executed within the specified time
It seems that your computer has a slow access to the HD. How much RAM? (XP pro?).
Still, I would expect some more jitter about this magic number 32.

[chrisger]

can you repeat your test without writing to file?

[Gurdas]

I too get 10ms steps.

Try setting the step to say 50ms. Do you get 50ms or is it still 32ms!! ?

Rgds,

[unclebump]

If you are curious about your hard drive write speed, try this website.

http://www.hdtune.com/

I found this program while I was installing solid state hard drives on 40 computers at work this week. Don't ask why I had to find it.