Re: Multitasking in Mac OS Gets 100% CPU

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  • Posted by mattlewis (admin) Nov 07, 2012
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ghaberek said...
mattlewis said...

In short, I don't think there is really any problem here. A busy loop should produce 100% CPU usage.

While I agree that a simple busy loop should produce 100% CPU usage, I think that a tasking loop with regular calls to sleep() should not, since the OS has the opportunity to schedule other programs.

Well, yes, there's that. Looking deeper, I suspect that Jim is right about the busy loop for sleeps of less than a second being a DOS hold over, since nanosleep() and Windows' sleep() work with fractional seconds.

Matt

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