How to get CPU usage in flash?

I tried to find out but Google didn't help. Is there some way to get the cpu usage i开发者_StackOverflow中文版n flash or adobe AIR?

I'm using ActionScript 3.0 and flash CS5.

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In Flash, there is no way. In AIR, only native helper could do it. Flash platform has tough time with system programming, it's not its strength.