Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/36181
[Changelog][Internal]
Implements EventCounts API (`Performance.eventCounts`) for Web Performance, according to the W3C standard, see the specs here: https://www.w3.org/TR/event-timing/#eventcounts
The rationale for why we need it is to support some advanced metrics computations, such as a ratio of "slow events" to total event count, per event type.
Reviewed By: rubennorte
Differential Revision: D43285073
fbshipit-source-id: 2c53d04d9a57c1301e37f2a5879072c8d33efbbf
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/36116
[Changelog][Internal]
Add a minimal/reference JavaScript implementation for NativePerformanceObserver - the purpose is both unit testing (JS and native sides separately) and potentially shimming the part of functionality that is not dependent on native side.
This is both a setup for adding general unit tests for the Performance* APIs, but also to be able to do non-trivial changes on JS side for WebPerformance (such as in (D43154319).
Reviewed By: rubennorte
Differential Revision: D43167392
fbshipit-source-id: 213d9534d810dece1dd464f910e92e08dbf39508
Summary:
[Changelog][Internal]
`NativePerformanceObserver` TurboModule API would get the type for performance entries as strings in one direction (`start/stopReporting`) and as integers in another direction (inside `RawPerformanceEntry`, for optimization on the native side).
This makes is symmetrical and consistent, all the conversions are now handled on the JS side.
Reviewed By: christophpurrer
Differential Revision: D43236466
fbshipit-source-id: 08e1b62df90e6d26a11577d6b6b1d91a6bce8339
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/35771
[Changelog][Internal]
Based on the internal discussion, we don't want to report `first-input` event types for RN (just use plain `event` instead), in the way that [Event Timing API standard suggests](https://www.w3.org/TR/event-timing), as this is doesn't have that clear semantics in the context of RN, also to keep it simpler.
Reviewed By: rubennorte
Differential Revision: D42341923
fbshipit-source-id: eff2487dee17ef082604e4c807b4d41485328114
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/35768
Changelog: [Internal]
This implements native side mechanics for reporting user events timing to JS (PerformanceObserver API).
See the standard for more details: https://www.w3.org/TR/event-timing/
The events are only logged when there are any active subscriptions (via `PerformanceObserver.observe`), also we only log "discrete events" (i.e. no likes of mouse move), so the overhead is non-existing.
There are two main metrics of interest for an event lifecycle:
* Time the event is spent in the queue, i.e. the time between it's created and dispatched
* Time that is spend in the event handler on the JS side (event dispatch), or processing time
Both of these are measured, and the corresponding fields are populated.
Reviewed By: sammy-SC
Differential Revision: D42294947
fbshipit-source-id: 4fd7938c04b942400befa4057d4929fb2763cee1
Summary:
Extends the WebPerformance API with ability to report events, [according to the standard](https://www.w3.org/TR/event-timing/#sec-performance-event-timing).
This is an API-only change, the actual reporting comes in a separate diff, to simplify reviewing.
Changelog: [Internal]
Reviewed By: christophpurrer
Differential Revision: D42097695
fbshipit-source-id: d8b468ffed50c1c3d889151df5e8ca644d6e1a68
Summary:
Prevents scenarios when internal performance buffer may grow indefinitely (e.g. due to a broken logging), communicating back to `PerformanceObserver` the corresponding amount of dropped entries, `droppedEntriesCount`, [according to the standard](https://w3c.github.io/performance-timeline/#dom-performanceobservercallbackoptions-droppedentriescount).
NOTE: The backwards compatibility check is failing, which is an orthogonal issue. I am looking into it and won't land this one before it is sorted.
Changelog: [Internal]
Reviewed By: christophpurrer
Differential Revision: D42008409
fbshipit-source-id: 40d30e44d39e643bfb58a6254572823cb2b3b8df
Summary:
Now that D42097191 allows it, get rid of unused API in the related WebPerformance native modules (these were kept there only to pacify the backwards compatibility checks).
Changelog: [Internal]
Reviewed By: christophpurrer
Differential Revision: D42037757
fbshipit-source-id: 5f5e7e76722cade9e730aba037f9e8ab51fc16d9
Summary:
Changelog: [Internal]
This implements the C++ side logic of handling `Performance.measure` calls.
Since measures may refer to earlier logged marks by name, we need to keep track of the former. I also use a fixed size (circular) buffer to prevent the marks from piling forever.
Also adds implementation of clearing marks/measures, as per standard.
Reviewed By: mdvacca
Differential Revision: D41756928
fbshipit-source-id: 19dce28d6af4c5646274e6d5db20b41869282780
Summary:
[Changelog][Internal]
The NativePerformance module functionality corresponds to the [timing extensions of the Performance API standard interface](https://www.w3.org/TR/user-timing/#extensions-performance-interface).
As this is logically separate from `PerformanceObserver` (which may exist without it), it makes sense to have it as a different native module, so there is no coupling between both.
Reviewed By: christophpurrer
Differential Revision: D41690145
fbshipit-source-id: 7443f4c51f54cc2fdddbdb2e89f9a1fa457ab280
Summary:
[Changelog][Internal]
The name corresponds more precisely to what the method does.
Reviewed By: christophpurrer
Differential Revision: D41686205
fbshipit-source-id: 36c47b57fdeb757515cd14b890f38247f7fe8d02
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/35526
[Changelog][Internal]
This closes the full loop according to the [technical design](https://fb.quip.com/MdqgAk1Eb2dV) of the WebPerf API implementation, with the main components and the working central data flow in place.
The next step is to add some buffering/throttling, as in this diff we just spawn an idle-priority task after every performance entry coming (even though they still naturally do come in batches, because they manage to accumulate before the task is executed).
Reviewed By: christophpurrer
Differential Revision: D41496082
fbshipit-source-id: 5fd4cf22e75806f7bc98d1d1b6691596ccadf8b9
Summary:
[Changelog][Internal]
Adds API definition for [Performance.mark](https://www.w3.org/TR/user-timing/#mark-method) support.
This is a bare bone implementation, that just logs events on the native side. The next step is the native logic for queuing, flushing etc.
Note that here I route both JS and native marks to native for now, for simplicity sake - ultimately this may not be what we want, as it may be more efficient to process marks, logged from JS, on the JS side.
Reviewed By: rubennorte
Differential Revision: D41472148
fbshipit-source-id: bdf2b182b8472a71a5500235849bca5af1c2f360
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/35226
Changelog: [Internal]
This adds scaffolding for the C++ side of NativePerformanceObserver module.
Thanks to christophpurrer for helping set this up, as this is the first one of this kind inside core/OSS.
Reviewed By: rubennorte
Differential Revision: D41028555
fbshipit-source-id: 4acf0e71a254a42044cbbe5f94f40938342c6aa2
Ruslan Shestopalyuk