Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/36314
## Changelog:
[Internal] - Added support for W3C Performance API extension (Performance,getEntries*)
See [here for the details](https://www.w3.org/TR/performance-timeline/#extensions-to-the-performance-interface).
This only supports `mark` and `measure` performance entry types (not `events`, as those are not supported by browsers either, they recommend using the `PerformanceObserver` API instead).
From the implementation perspective, we already maintained persistent buffer for `mark` entry types, which was required in order to look up measures.
The buffer is circular, limited to 1K entries by default.
I basically mimic the same behavior for `measure` entry types as well, since it's the simplest way of doing it at this point,
If we happen to want adding some other entry types that would be available via `Performance.getEntries*` API in the future, we may want to iterate on the internal data structures representation inside `PerformanceEntryReporter`, but for now I believe this approach should work just fine, and whatever changes we may want to do will be purely internal implementation detail.
Reviewed By: rubennorte
Differential Revision: D43625488
fbshipit-source-id: dd315b3f8488e910749a8e2a4158246e94d76f99
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/36312
## Changelog:
[Internal] -
`clearMarks` and `clearMeasures` methods are incidental to the `NativePerformance` TurboModule functionality, as in reality this responsibility belongs more on the `NativePerformanceObserver` and `PerformanceEntryReporter` side.
This is something that [the standard indirectly suggests](https://www.w3.org/TR/user-timing/#clearmarks-method) as well (referencing [performance entry buffer](https://www.w3.org/TR/performance-timeline/#dfn-performance-entry-buffer)).
The new implementation should be also a little bit more efficient, as it avoids calling the predicate for each entry.
Finally (and frankly, the main reason for this change, from my perspective), it will simplify mocking/testing the JS part of the PerfAPI code.
Reviewed By: rubennorte
Differential Revision: D43621174
fbshipit-source-id: c4217a0da1d8ecbce797240627f7b4f057d85b97
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/36152
[Changelog][Internal]
By [the W3C standard](https://developer.mozilla.org/en-US/docs/Web/API/PerformanceObserver/observe), `PerformanceObserver.observer` can optionally take a `durationThreshold` option, so that only entries with duration larger than the threshold are reported.
This diff adds support for this on the RN side, as well as unit tests for this feature on the JS side.
NOTE: The standard suggests that default value for this is 104s. I left it at 0 for now, as for the RN use cases t may be to too high (needs discussion).
Reviewed By: rubennorte
Differential Revision: D43154319
fbshipit-source-id: 0f9d435506f48d8e8521e408211347e8391d22fc
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/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]
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
Christoph Purrer