[Home](./index.md) > [@firebase/performance](./performance.md) > [FirebasePerformance](./performance.firebaseperformance.md) ## FirebasePerformance interface The Firebase Performance Monitoring service interface. Signature: ```typescript export interface FirebasePerformance ``` ## Properties | Property | Type | Description | | --- | --- | --- | | [dataCollectionEnabled](./performance.firebaseperformance.datacollectionenabled.md) | boolean | Controls the logging of custom traces. | | [instrumentationEnabled](./performance.firebaseperformance.instrumentationenabled.md) | boolean | Controls the logging of automatic traces and HTTP/S network monitoring. |