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Mac Activity Monitor

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I'm trying to evaluate the CPU performance of my app. What do the numbers in the above screenshot mean? It shows NetworkIcom (at the top) is using 39.9% of the CPU, but at the bottom is shows the User is 8.72% and Idle is 87.81%

Mark

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The Time Profiler instrument in Instruments is a better tool for measuring your app's performance and finding the slow spots in your code. The following article shows how to use the Time Profiler instrument:

Finding the Slow Spots in Your Code with the Time Profiler Instrument

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