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Xcode 3 Unleashed by Fritz Anderson

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Chapter 26. Instruments

<feature><title>In This Chapter</title>
  • Instruments: Performance and Resources in Time

  • Using the Instruments Window

  • Configuring Instruments

  • Apple’s Templates and Instruments

  • Custom Templates and Instruments

</feature>

Instruments is a framework for software-monitoring tools called... instruments. (Capital I Instruments is the application, small i instruments are components of the Instruments application.) The analogy (borrowed from Apple’s Garage Band audio editor) is to a multitrack tape deck. Instruments records activity on one or more tracks (one per instrument), building the data on a timeline like audio on a tape.

We’ve seen Instruments before, in Chapter 19, “Finishing Touches,” where it helped us track down a memory leak ...

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