Significance of Sleep(0)

Question

I used to see Sleep(0) in some part of my code where some infinite/long while loops are available. I was informed that it would make the time-slice

Answer 1

In one app....the main thread looked for things to do, then launched the "work" via a new thread. In this case, you should call sched_yield() (or sleep(0)) in the main thread, so, that you do not make the "looking" for work, more important then the "work". I prefer sleep(0), but sometimes this is excessive (because you are sleeping a fraction of a second).