 | This articleis missing information about usage of Instruments app for profiling an app's performance on an iOS device. Please expand the article to include this information. Further details may exist on thetalk page.(June 2020) |
| Instruments | |
|---|---|
 | |
 Instruments as it appears in Xcode 26 | |
| Developer | Apple Inc |
| Stable release | 26.0 / September 15, 2025 |
| Operating system | macOS |
| Type | Tracing &Profiling |
| License | Proprietaryfreeware |
| Website | help.apple.com/instruments |
Instruments (formerlyXray) is an application performance analyzer and visualizer byApple Inc., integrated inXcode 3.0 and later versions of Xcode. It is built on top of theDTracetracingframework fromOpenSolaris, which wasported toMac OS X v10.5 and which is available in all following versions ofmacOS.
Instruments shows a time line displaying any event occurring in the application, such as CPU activity variation, memory allocation, and network and file activity, together with graphs and statistics. Group of events are monitored via customizable "instruments", which have the ability to record user generated events and replay (emulate) them exactly as many times as needed, so a developer can see the effect of code changes without actually doing the repetitive work. TheInstrument Builder feature allows the creation of custom analysis instruments.[1]
Built-in instruments can track
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