Mastering Swift 2 Programming (Video 46)

The video tutorial explores compiler optimizations in Xcode, focusing on whole module optimization. It explains how this mode optimizes the entire module, leading to significant performance improvements, albeit with longer build times. The tutorial demonstrates testing these optimizations using Swift's filter functions and analyzing performance with the time profiler. It also covers inline functions and their role in enhancing performance. The video concludes with a practical demonstration of switching optimization modes and measuring their impact on CPU usage.

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