Continuous Profiling - Add delayed stop #4293
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Added platform "android" in ProfileChunk envelope items
…dContinuousProfiler Added "delayed" stop of profiler, which stops the profiler after the current chunk is finished Added default span data (profiler id, thread name and thread id) to transaction root span
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Performance metrics 🚀
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| Revision | Plain | With Sentry | Diff |
|---|---|---|---|
| a948dac | 406.28 ms | 452.18 ms | 45.91 ms |
| ea6dc38 | 409.39 ms | 488.18 ms | 78.79 ms |
App size
| Revision | Plain | With Sentry | Diff |
|---|---|---|---|
| a948dac | 1.58 MiB | 2.22 MiB | 653.05 KiB |
| ea6dc38 | 1.58 MiB | 2.08 MiB | 505.31 KiB |
7 tasks
markushi
approved these changes
Apr 4, 2025
sentry-android-core/src/main/java/io/sentry/android/core/AndroidContinuousProfiler.java
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📜 Description
Replaced synchronized blocks with AutoClosableReentrantLock in AndroidContinuousProfiler - unrelated to delayed stop, but small enough to be added in this PR
Added "delayed" stop of profiler, which stops the profiler after the current chunk is finished
Added default span data (profiler id, thread name and thread id) to transaction root span - unrelated to delayed stop, but this was causing the
ui.loadspan to not have the thread id and thread name attached, breaking the link to the continuous profile. A fix is already deployed on the frontend, which fallbacks to the main thread in such cases, but we should still fix it anyway in the SDK💡 Motivation and Context
The goal of continuous profiling is to send profile chunks 1 minute long, as it's more efficient to store few large chunks than multiple small chunks. To avoid the case when a profiler is started and stopped multiple times in the minute time range, causing multiple small chunks to be captured, we now wait until the chunk is finished to stop the profiler.
Note: closing the SDK through
Sentry.close()doesn't wait anything💚 How did you test it?
Unit tests
📝 Checklist
sendDefaultPIIis enabled.🔮 Next steps