docs(mobile): Add headless app starts and platform comparison to Mobile Vitals#17897
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…le Vitals Document headless app start tracking (Android-only), add a cold/warm start comparison table between Android and iOS, and link to SDK docs for full platform-specific details. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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buenaflor
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nice, looks good, just one comment
| | **Measurement start** | ContentProvider creation (`SentryPerformanceProvider`) | Process creation | | ||
| | **Measurement end** | First frame drawn | <ul> <li>didFinishLaunching notification (Standalone App Starts)</li><li>First frame drawn (Legacy App Starts)</li></ul> | | ||
| | **Recommended threshold** | Cold < 5s, Warm < 2s ([Google Play Console](https://developer.android.com/topic/performance/vitals/launch-time#av)) | < 400ms for first frame ([Apple](https://developer.apple.com/videos/play/wwdc2019/423/)) | | ||
| | **Prewarming** | N/A | iOS 15+ may prewarm processes, resulting in additional start types (`cold.prewarmed`, `warm.prewarmed`) | |
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what is cold/warm.prewarmed? are those transaction ops?
Didn't we add app.vitals.start.prewarmed to the convention
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DESCRIBE YOUR PR
Document headless app starts and Android/iOS platform differences on the Mobile Vitals App Starts page:
IS YOUR CHANGE URGENT?
Help us prioritize incoming PRs by letting us know when the change needs to go live.
SLA
Thanks in advance for your help!
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