Performance Monitoring

React Native 6 min min read Updated: Aug 03, 2026 Advanced
Performance Monitoring
Advanced Topic 15 of 18

Performance Monitoring

Monitoring performance in production allows developers to detect real-world issues that may not appear during local development or testing, ensuring a consistently smooth experience for actual users.

Why Production Monitoring Matters

Development environments and test devices often do not reflect the diverse range of real-world devices, network conditions, and usage patterns your actual users experience.

Using Firebase Performance Monitoring

bash npm install @react-native-firebase/perf
javascript import perf from '@react-native-firebase/perf'; const trace = await perf().startTrace('checkout_flow'); // ... perform tracked operation await trace.stop();

Tracking Custom Metrics

javascript trace.putMetric('itemsInCart', cartItems.length);

Monitoring Network Requests

Performance monitoring tools automatically track network request duration and success rates, helping identify slow or failing API endpoints affecting real users.

Using Sentry for Performance Tracing

Sentry, in addition to error tracking, offers performance monitoring capabilities that trace transactions across your app, helping correlate slow performance with specific errors or crashes.

Setting Up Alerts

Configure alerts for key performance metrics, such as crash rates or slow screen load times, so your team is notified proactively rather than discovering issues through user complaints.

Analyzing Device and Network Segments

Performance monitoring dashboards typically allow segmenting data by device model, OS version, and network type, revealing performance issues specific to certain user segments.

Conclusion

Implementing production performance monitoring using tools like Firebase Performance Monitoring or Sentry provides ongoing visibility into real-world app performance, enabling proactive optimization based on actual user data.

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