React Native Performance

Overview:

The React Native Performance tooling is a comprehensive toolchain designed to measure and monitor the performance of React Native apps throughout the development process, from the initial stages to production. This tool offers various packages that integrate with React and provide features such as tracing events, capturing network traffic, collecting native metrics, and visualizing performance metrics in a debugging environment.

Features:

• react-native-performance: Implementation of the Performance API for React Native.
• React.Profiler API Integration: Integrates well with React and allows tracing of arbitrary events like component render time.
• Capture Network Traffic: Collects and analyzes network traffic within the app.
• Collect Native Traces: Gathers native traces such as script execution and time to interactive of the root view.
• Native Metrics Collection: Provides native metrics such as JS bundle size in the development environment.
• flipper-plugin-performance: Enables visualization of performance tracing and generic metrics in the debug tool Flipper.
• react-native-performance-flipper-reporter: Connects the react-native-performance library with the Flipper visualization tool for performance analysis.
• isomorphic-performance: Offers Isomorphic Performance API for Node, Browser, and React Native, making it suitable for apps targeting both web and native platforms.

Installation:

To install the React Native Performance tooling and its packages, follow these steps:

1. Make sure you have yarn v1 installed.
2. Run yarn in the root folder to install dependencies for all packages.
3. Uninstall the Flipper Performance plugin if previously installed.
4. Edit your ~/.flipper/config.json configuration file.
5. Continuously compile the plugin with the provided command.
6. Run the example app and unit tests as needed.

Summary:

The React Native Performance tooling provides developers with a powerful set of tools to measure, monitor, and optimize the performance of React Native apps. By integrating with React and offering features like tracing events, capturing network traffic, and visualizing performance metrics, this toolchain facilitates the identification of performance bottlenecks and optimization opportunities throughout the app development lifecycle. With comprehensive packages like react-native-performance, flipper-plugin-performance, and isomorphic-performance, developers can gain insights into app performance across different environments and platforms, enhancing the overall user experience.