Source View
Drill down through data points, sort to find the most CPU-consuming methods, and view the code directly within the Instruments UI to pinpoint the problem.
Low-Overhead Sampling
Without launching the Instruments application it is possible to begin sampling performance data with a simple keypress, using very low overhead to collect high-fidelity information.
Custom Instruments
Create your own Instruments using DTrace and the Instruments custom builder.
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