N. Performance

Firebase Performance Monitoring

Firebase Performance Monitoring is a service that helps you to gain insight into the performance characteristics of your iOS, Android, and web apps.

You use the Performance Monitoring SDK to collect performance data from your app, then review and analyze that data in the Firebase console. Performance Monitoring helps you to understand where and when the performance of your app can be improved so that you can use that information to fix performance issues.

Key capabilities

Capability	Description
Automatically measure app startup time, HTTP/S network requests, and more	When you integrate the Performance Monitoring SDK into your app, you don't need to write any code before your app starts automatically monitoring several critical aspects of performance. For native apps, the SDK logs startup time, rendering data by screen, and activity while in the foreground or background. For web apps, the SDK logs aspects like first contentful paint, ability for users to interact with your app, and more.
Gain insight into situations where app performance could be improved	Optimizing the performance of your app can be challenging when you don't know exactly why it is falling short of user expectations. That's why Performance Monitoring lets you see performance metrics broken down by country, device, app version, and OS level.
Customize Performance Monitoring for your app	You can create traces to capture your app's performance in specific situations, like when you load a new screen or display a new interactive feature. And, you can create custom metrics to count events that you define (like cache hits) during those traces.

How does it work?

Performance Monitoring is available for iOS, Android, and web apps that include the Performance Monitoring SDK. Performance Monitoring monitors traces and HTTP/S network requests in your app.

Automatic traces
A trace is a report of performance data captured between two points in time in your app. Performance Monitoring automatically includes several default traces. For iOS and Android apps, automatic traces include:

• app start traces — measures the time between when the user opens the app and when the app is responsive
• app in foreground traces and app in background traces — offer insight into how your app performs when in the foreground or when idle

Custom traces
You can also configure custom traces. A custom trace is a report of performance data associated with some of the code in your app. You define the beginning and end of a custom trace using the APIs provided by the SDK.

You can further configure a custom trace to record custom metrics for performance-related events that occur within its scope. For example, you can create a custom metric for the number of cache hits and misses or the number of times that the UI becomes unresponsive for a noticeable period of time.

HTTP/S network requests
An HTTP/S network request is a report that captures the time between when your app issues a request to a service endpoint and when the response from that endpoint is complete. For any endpoint that your app makes a request to, Performance Monitoring captures several metrics:

• Response time: Time between when the request is made and when the response is fully received
• Payload size: Byte size of the network payload downloaded and uploaded by the app
• Success rate: Percentage of successful responses compared to total responses (to measure network or server failures)

Get started with Firebase Performance in AdobeAIR

• Add Performance ANE to your project
• Init Performance ANE and start monitoring

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DISCRIMINATION: Firebase SDKs are developed by Google and they own every copyright to the Firebase "native" projects. However, we have used their "compiled" native SDKs to develop the ActionScript API to be used in AdobeAIR mobile projects. Moreover, as far as the documentations, we have copied and when needed has modified the Google documents so it will fit the needs of AdobeAIR community. If you wish to see the original documentations in Android/iOS, visit here. But if you are interested to do things in AdobeAIR, then you are in the right place.