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Chapter 13. Tools > Mac OS X Instruments

Mac OS X Instruments

Mac OS X Instruments is a graphical analysis tool for tracing and profiling code. It can use DTrace to fetch data, and according to the Instruments User Guide, much of Instruments is now based on DTrace:

DTrace is a dynamic tracing facility originally created by Sun and ported to Mac OS X v10.5. Because DTrace taps into the operating system kernel, you have access to low-level operation about the kernel itself and about the user processes running on your computer. Many of the built-in instruments are already based on DTrace. And even though DTrace is itself a very powerful and complex tool, Instruments provides a simple interface that gives you access to the power of DTrace without the complexity.


  

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