We use Instruments Activity Monitor to measure CPU usage of our app. We see some CPU usage more than 100%. Does that mean Instruments didn't take into account multi-core of CPU? Or may be bugs of Instruments?!
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Please add some code so we can see what you have tried... – It-Z Jul 25 '16 at 09:37
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Check out https://www.quora.com/What-does-100-CPU-utilization-mean for Linux. I've observed both normalized to 100% and >100% for both Linux and Windows. I can't imagine iOS is much different. I prefer the >%100 versions. – Taylor Kidd Jul 31 '16 at 19:09