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`,t+=`Datadog provides the below out-of-the-box metrics for a comprehensive overview of your application’s health over time. To ensure accuracy, these metrics are computed prior to retaining or discarding any sessions. This means that even though you keep 0.01% of your sessions, these metrics are computed based on 100% of the ingested sessions. These metrics are powering the performance summary to give you an accurate overview of the performance of your apps.
Notes:
@session.type:user
.Metric Name | Description | Dimensions | Platform |
---|---|---|---|
rum.measure.app.startup_time | App startup time | Default, Percentiles breakdown | Mobile only |
rum.measure.error | Count of errors | Default, Is Crash, View Name | Mobile & Browser |
rum.measure.error.anr | Count of ANRs (an Android freeze) | Default, Is Crash, View Name | Mobile only |
rum.measure.error.hang | Count of hangs (an iOS freeze) | Default | Mobile only |
rum.measure.error.hang.duration | Duration of hangs (an iOS freeze) | Default, View Name | Mobile only |
rum.measure.session | Count of sessions | Default | Mobile & Browser |
rum.measure.session.action | Count of actions | Default, Action Type, View Name | Mobile & Browser |
rum.measure.session.crash_free | Count of crash-free sessions | Default | Mobile only |
rum.measure.session.error | Count of errors per session (@session.error.count) | Default, Percentiles breakdown | Mobile & Browser |
rum.measure.session.frustration | Count of frustration signals | Default | Mobile & Browser |
rum.measure.session.inactive | Count of inactive sessions | Default | Mobile & Browser |
rum.measure.session.time_spent | Session duration | Default, Percentiles breakdown | Mobile & Browser |
rum.measure.view | Count of views | Default, View Name | Mobile & Browser |
rum.measure.view.cpu_ticks_per_second | CPU ticks per second | Default, View Name | Mobile only |
rum.measure.view.crash_free | Crash-free session rate | Default, View Name | Mobile only |
rum.measure.view.cumulative_layout_shift | Cumulative Layout Shift | Default, Percentiles breakdown, View Name | Browser only |
rum.measure.view.loading_time | Time until the page is ready and no network request or DOM mutation is currently occurring. | Default, Percentiles breakdown, View Name | Mobile & Browser |
rum.measure.view.error_free | Count of error free sessions | Default, View Name | Mobile & Browser |
rum.measure.view.first_contentful_paint | Time when the browser first renders any text, image (including background images), non-white canvas, or SVG | Default, Percentiles breakdown, View Name | Browser only |
rum.measure.view.frozen_frame | Count of frozen frames | Default, View Name | Mobile only |
rum.measure.view.frozen_frame_free | Count of views without frozen frames | Default | Mobile only |
rum.measure.view.inactive | Count of inactive views | Default, Percentiles breakdown | Mobile & Browser |
rum.measure.view.interaction_to_next_paint | Longest duration between a user’s interaction with the page and the next paint. | Default, Percentiles breakdown | Browser only |
rum.measure.view.interaction_to_next_view | Time between the last user interaction in the previous view and the start of the current view | Default, Percentiles breakdown | Mobile only |
rum.measure.view.largest_contentful_paint | Time in the page load where the largest DOM object in the viewport (visible on screen) is rendered | Default, Percentiles breakdown, View Name | Browser only |
rum.measure.view.memory | Amount of system memory used | Default, Percentiles breakdown | Mobile only |
rum.measure.view.network_settled | Network settled | Default, Percentiles breakdown | Mobile only |
rum.measure.view.refresh_rate | Average of user’s refresh rate (FPS) | Default, Percentiles breakdown | Mobile only |
rum.measure.view.slow_rendered | Count of slow rendered views | Default | Mobile only |
rum.measure.rum.measure.view.time_spent | Time spent on the current view | Default | Mobile & Browser |
Metrics can be managed through APIs or Datadog’s dedicated Terraform modules.