Xcode 9.3: Core Animation Instrument Deprecated

April 25th, 2018

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Apple deprecated the Core Animation instrument in Xcode 9.3. If you’re looking for the debug options the Core Animation instrument had, use Xcode’s view debugger. Choose Debug > View Debugging > Rendering to access the debug options.

Xcode 9: Locating dSYM Files in Instruments

December 11th, 2017

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Xcode 9 changed the way you locate a dSYM file if you’re seeing memory addresses instead of function names in the call tree view. Now you choose File > Symbols to locate the dSYM file. Select the app you’re profiling on the left side of the sheet. Click the Locate button to find the dSYM […]

Xcode 9: Activity Monitor Instrument Changes

November 27th, 2017

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In Xcode 9 Apple removed the recording configuration options for the Activity Monitor instrument. The replacement is summaries for the system CPU usage, system memory usage, system disk activity, and system network activity. You can access these summaries from the jump bar.

Xcode 8.3: Instruments Display Settings Moved

April 18th, 2017

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Prior to Xcode 8.3 the configuration section of the Instruments trace document window had an area for display settings, as you can see in the following image: Starting with Xcode 8.3 the display settings area has been removed from the configuration section. You can access settings you configure before starting a trace by choosing File […]

Instruments: Call Tree View Is Your Friend

January 23rd, 2017

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On Stack Overflow I see the same question constantly from people who use Instruments. Instruments uncovers a problem with their app. The app could have memory leaks. It could use a lot of memory. The people asking the questions want to know how to find the area of their code that is causing the problem. […]