docs(profiling): Add docs for Profiling API#15258
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indragiek
approved these changes
Oct 20, 2025
| The definition of a profiling session depends on the profiling type: | ||
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| - **Continuous Profiling**: The session starts when the Sentry SDK is configured and stops when the service terminates. `profile_session_sample_rate` controls the percentage of service instances that have profiling enabled. Sampling is re-evaluated on service restart or redeployment. | ||
| - **UI Profiling**: The session corresponds to a user session. A user session starts with a new SDK initialization and ends when the tab is closed or like a [Replay session](/product/explore/session-replay/web/) ends. `profile_session_sample_rate` sets the percentage of user sessions for which profiling is enabled. So this sampling decision is made once on SDK initialization. |
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there's a grammar issue here "ends when the tab is closed or like a Replay session ends"
coolguyzone
reviewed
Oct 21, 2025
| The definition of a profiling session depends on the profiling type: | ||
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| - **Continuous Profiling**: The session starts when the Sentry SDK is configured and stops when the service terminates. `profile_session_sample_rate` controls the percentage of service instances that have profiling enabled. Sampling is re-evaluated on service restart or redeployment. | ||
| - **UI Profiling**: The session corresponds to a user session. A user session starts with a new SDK initialization and ends when the tab is closed or like a [Replay session](/product/explore/session-replay/web/) ends. `profile_session_sample_rate` sets the percentage of user sessions for which profiling is enabled. So this sampling decision is made once on SDK initialization. |
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| - **UI Profiling**: The session corresponds to a user session. A user session starts with a new SDK initialization and ends when the tab is closed or like a [Replay session](/product/explore/session-replay/web/) ends. `profile_session_sample_rate` sets the percentage of user sessions for which profiling is enabled. So this sampling decision is made once on SDK initialization. | |
| - **UI Profiling**: The session corresponds to a user session. A user session starts with a new SDK initialization and ends when the tab is closed or a [Replay session](/product/explore/session-replay/web/) ends. `profile_session_sample_rate` sets the percentage of user sessions for which profiling is enabled. So this sampling decision is made once on SDK initialization. |
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I wrote it a bit differently, as I wanted to say that it can end "like" a replay session. But the wording was indeed weird :D
A user session starts with a new SDK initialization. It ends when the browser tab is closed, or alternatively, under the same conditions that end a Replay session.
coolguyzone
reviewed
Oct 21, 2025
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| ## Public API | ||
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| The SDK should expose the following functions to control the profiler. |
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| The SDK should expose the following functions to control the profiler. | |
| The SDK should expose the following functions to control the profiler: |
codyde
added a commit
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Oct 27, 2025
…s-examples * origin/master: (478 commits) docs(godot): Structured logging (#15287) fix(batch-processor): Don't enforce starting timer (#15309) feat(node): Add new options to nativeNodeFetchIntegration (#15282) Updated dotnet options to include all defaults (#15218) ref: add docs that logs channel is optional (#15172) docs(svelteKit): Update build-time options for source maps (#15283) fix(python): Fix paragraph order in Strawberry docs (#15301) Added docs explaining how to disable Sentry Native in the .NET SDK (#15293) Updated Unity options with missing defaults (#15219) docs(otlp): Update docs for client SDK w3c traceparent support (#15294) Adding defaults for Godot options (#15216) feat(crons): Document broken monitors feature (#15280) fix: Remove OTLP logs from EA list (#15288) Bump API schema to 06047b60 (#15276) ref(nextjs): Move manual instrumentation examples for ai into Edge section (#15284) docs(otlp): change status to open beta (#15285) Hono runtime and middleware doc updates (#14853) feat(logs): Clarify API for Hub/Scope and Client (#15281) docs(astro/nuxt): Remove `sourceMapsUploadOptions` option nesting (#14905) docs(profiling): Add docs for Profiling API (#15258) ...
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DESCRIBE YOUR PR
Add docs for Profiling API based on those Notion docs: https://www.notion.so/sentry/Continuous-UI-Profiling-SDK-API-Spec-17e8b10e4b5d80c59a40c6e114470934?source=copy_link
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Thanks in advance for your help!
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