Long initialization times

[jhowens89]

Integration

sentry-android

Build System

Gradle

AGP Version

8.11.0

Proguard

Enabled

Version

8.16.0

Steps to Reproduce

SentryAndroid.init(application) { options: SentryAndroidOptions ->
options.dsn = "..."
options.environment = "production"
options.tracesSampleRate = 0.1
options.release = "..."
}

Expected Result

Initializes the vast majority of time <10ms

Actual Result

We have been trying to identify slow operations having during our app's initialization and it has come to our attention that our p90 for Sentry initialization is ~100ms.

What can be done to reduce this latency? We do this very early in app startup to catch any early crashes. This is happening on the main thread (not clear whether doing this on a background thread is necessarily supported (ex)).

[linear]

JAVA-165 Long initialization times

[romtsn]

hi @jhowens89, you can certainly try initalizing the SDK on a background thread - if it doesn't work, this is likely a bug worth reporting.

In general, our own measurement show ~60ms overhead, but it depends largely on the devices you're measuring on, OS versions, your Sentry.init config, etc. E.g. removing NDK support (if you're not interested in native C++ crashes) can certainly shave off some init time.

Could you potentially share the device/OS breakdown for your measurements? Or maybe you even have access to perfetto traces/profiles?

[markushi]

@jhowens89 any chance you have an update for us?

[stefanosiano]

Closing this at the moment, due to inactivity.
Feel free to add a comment and we will reopen it.