Specifying a Particular Target for an Instrument

Set a particular target for an individual instrument in a trace document to collect data from a particular application, process, or device. Set another individual instrument in the trace document to collect data from a different application, process, or device.

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To set a target for a single instrument
  1. Choose Instrument Specific from the Target pop-up menu.

  2. Click the instrument’s inspector icon.

  3. Choose the targeted application or process from the pop-up menu in the Target section.

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You can add multiple versions of the same instrument to your trace document by dragging another copy of the instrument from the Library into the document to record data from a different application, process, or device with each version of the instrument.

You can collect various streams of data simultaneously. For example, you could simultaneously collect data from:

  • All processes with one instrument.

  • A single application with a second instrument.

  • A different application with a second version of the second instrument.

  • A third application with a third instrument.

For iOS development, the pop-up menu for the target selection includes only the targets that you can profile. For OS X development, the pop-up menu includes the targets that you have already profiled.

The screenshot shows the Time Profiler instrument being set to record data from the Sketch application.

Definitive Discussion