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[Fiber] Highlight hydration and offscreen render phases #31752

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Dec 14, 2024
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12 changes: 12 additions & 0 deletions packages/react-reconciler/src/ReactFiberLane.js
Original file line number Diff line number Diff line change
Expand Up @@ -621,6 +621,18 @@ export function includesTransitionLane(lanes: Lanes): boolean {
return (lanes & TransitionLanes) !== NoLanes;
}

export function includesOnlyHydrationLanes(lanes: Lanes): boolean {
return (lanes & HydrationLanes) === lanes;
}

export function includesOnlyOffscreenLanes(lanes: Lanes): boolean {
return (lanes & OffscreenLane) === lanes;
}

export function includesOnlyHydrationOrOffscreenLanes(lanes: Lanes): boolean {
return (lanes & (HydrationLanes | OffscreenLane)) === lanes;
}

export function includesBlockingLane(lanes: Lanes): boolean {
const SyncDefaultLanes =
InputContinuousHydrationLane |
Expand Down
70 changes: 60 additions & 10 deletions packages/react-reconciler/src/ReactFiberPerformanceTrack.js
Original file line number Diff line number Diff line change
Expand Up @@ -9,9 +9,16 @@

import type {Fiber} from './ReactInternalTypes';

import type {Lanes} from './ReactFiberLane';

import getComponentNameFromFiber from './getComponentNameFromFiber';

import {getGroupNameOfHighestPriorityLane} from './ReactFiberLane';
import {
getGroupNameOfHighestPriorityLane,
includesOnlyHydrationLanes,
includesOnlyOffscreenLanes,
includesOnlyHydrationOrOffscreenLanes,
} from './ReactFiberLane';

import {enableProfilerTimer} from 'shared/ReactFeatureFlags';

Expand Down Expand Up @@ -51,7 +58,7 @@ const reusableLaneOptions = {
},
};

export function setCurrentTrackFromLanes(lanes: number): void {
export function setCurrentTrackFromLanes(lanes: Lanes): void {
reusableLaneDevToolDetails.track = getGroupNameOfHighestPriorityLane(lanes);
}

Expand Down Expand Up @@ -223,6 +230,7 @@ export function logBlockingStart(
eventType: null | string,
eventIsRepeat: boolean,
renderStartTime: number,
lanes: Lanes,
): void {
if (supportsUserTiming) {
reusableLaneDevToolDetails.track = 'Blocking';
Expand All @@ -240,7 +248,11 @@ export function logBlockingStart(
}
if (updateTime > 0) {
// Log the time from when we called setState until we started rendering.
reusableLaneDevToolDetails.color = 'primary-light';
reusableLaneDevToolDetails.color = includesOnlyHydrationOrOffscreenLanes(
lanes,
)
? 'tertiary-light'
: 'primary-light';
reusableLaneOptions.start = updateTime;
reusableLaneOptions.end = renderStartTime;
performance.measure('Blocked', reusableLaneOptions);
Expand Down Expand Up @@ -292,33 +304,65 @@ export function logTransitionStart(
}
}

export function logRenderPhase(startTime: number, endTime: number): void {
export function logRenderPhase(
startTime: number,
endTime: number,
lanes: Lanes,
): void {
if (supportsUserTiming) {
reusableLaneDevToolDetails.color = 'primary-dark';
reusableLaneDevToolDetails.color = includesOnlyHydrationOrOffscreenLanes(
lanes,
)
? 'tertiary-dark'
: 'primary-dark';
reusableLaneOptions.start = startTime;
reusableLaneOptions.end = endTime;
performance.measure('Render', reusableLaneOptions);
performance.measure(
includesOnlyOffscreenLanes(lanes)
? 'Prepared'
: includesOnlyHydrationLanes(lanes)
? 'Hydrated'
: 'Render',
reusableLaneOptions,
);
}
}

export function logInterruptedRenderPhase(
startTime: number,
endTime: number,
lanes: Lanes,
): void {
if (supportsUserTiming) {
reusableLaneDevToolDetails.color = 'primary-dark';
reusableLaneDevToolDetails.color = includesOnlyHydrationOrOffscreenLanes(
lanes,
)
? 'tertiary-dark'
: 'primary-dark';
reusableLaneOptions.start = startTime;
reusableLaneOptions.end = endTime;
performance.measure('Interrupted Render', reusableLaneOptions);
performance.measure(
includesOnlyOffscreenLanes(lanes)
? 'Prewarm'
: includesOnlyHydrationLanes(lanes)
? 'Interrupted Hydration'
: 'Interrupted Render',
reusableLaneOptions,
);
}
}

export function logSuspendedRenderPhase(
startTime: number,
endTime: number,
lanes: Lanes,
): void {
if (supportsUserTiming) {
reusableLaneDevToolDetails.color = 'primary-dark';
reusableLaneDevToolDetails.color = includesOnlyHydrationOrOffscreenLanes(
lanes,
)
? 'tertiary-dark'
: 'primary-dark';
reusableLaneOptions.start = startTime;
reusableLaneOptions.end = endTime;
performance.measure('Prewarm', reusableLaneOptions);
Expand All @@ -328,10 +372,15 @@ export function logSuspendedRenderPhase(
export function logSuspendedWithDelayPhase(
startTime: number,
endTime: number,
lanes: Lanes,
): void {
// This means the render was suspended and cannot commit until it gets unblocked.
if (supportsUserTiming) {
reusableLaneDevToolDetails.color = 'primary-dark';
reusableLaneDevToolDetails.color = includesOnlyHydrationOrOffscreenLanes(
lanes,
)
? 'tertiary-dark'
: 'primary-dark';
reusableLaneOptions.start = startTime;
reusableLaneOptions.end = endTime;
performance.measure('Suspended', reusableLaneOptions);
Expand All @@ -341,6 +390,7 @@ export function logSuspendedWithDelayPhase(
export function logErroredRenderPhase(
startTime: number,
endTime: number,
lanes: Lanes,
): void {
if (supportsUserTiming) {
reusableLaneDevToolDetails.color = 'error';
Expand Down
29 changes: 22 additions & 7 deletions packages/react-reconciler/src/ReactFiberWorkLoop.js
Original file line number Diff line number Diff line change
Expand Up @@ -1035,7 +1035,7 @@ export function performWorkOnRoot(
if (errorRetryLanes !== NoLanes) {
if (enableProfilerTimer && enableComponentPerformanceTrack) {
setCurrentTrackFromLanes(lanes);
logErroredRenderPhase(renderStartTime, renderEndTime);
logErroredRenderPhase(renderStartTime, renderEndTime, lanes);
finalizeRender(lanes, renderEndTime);
}
lanes = errorRetryLanes;
Expand Down Expand Up @@ -1066,7 +1066,7 @@ export function performWorkOnRoot(
if (exitStatus === RootFatalErrored) {
if (enableProfilerTimer && enableComponentPerformanceTrack) {
setCurrentTrackFromLanes(lanes);
logErroredRenderPhase(renderStartTime, renderEndTime);
logErroredRenderPhase(renderStartTime, renderEndTime, lanes);
finalizeRender(lanes, renderEndTime);
}
prepareFreshStack(root, NoLanes);
Expand Down Expand Up @@ -1207,7 +1207,7 @@ function finishConcurrentRender(
// until we receive more data.
if (enableProfilerTimer && enableComponentPerformanceTrack) {
setCurrentTrackFromLanes(lanes);
logSuspendedRenderPhase(renderStartTime, renderEndTime);
logSuspendedRenderPhase(renderStartTime, renderEndTime, lanes);
finalizeRender(lanes, renderEndTime);
trackSuspendedTime(lanes, renderEndTime);
}
Expand Down Expand Up @@ -1757,9 +1757,17 @@ function prepareFreshStack(root: FiberRoot, lanes: Lanes): Fiber {
// then this is considered a prewarm and not an interrupted render because
// we couldn't have shown anything anyway so it's not a bad thing that we
// got interrupted.
logSuspendedRenderPhase(previousRenderStartTime, renderStartTime);
logSuspendedRenderPhase(
previousRenderStartTime,
renderStartTime,
lanes,
);
} else {
logInterruptedRenderPhase(previousRenderStartTime, renderStartTime);
logInterruptedRenderPhase(
previousRenderStartTime,
renderStartTime,
lanes,
);
}
finalizeRender(workInProgressRootRenderLanes, renderStartTime);
}
Expand All @@ -1783,6 +1791,7 @@ function prepareFreshStack(root: FiberRoot, lanes: Lanes): Fiber {
: clampedUpdateTime >= 0
? clampedUpdateTime
: renderStartTime,
lanes,
);
}
logBlockingStart(
Expand All @@ -1791,6 +1800,7 @@ function prepareFreshStack(root: FiberRoot, lanes: Lanes): Fiber {
blockingEventType,
blockingEventIsRepeat,
renderStartTime,
lanes,
);
clearBlockingTimers();
}
Expand All @@ -1817,6 +1827,7 @@ function prepareFreshStack(root: FiberRoot, lanes: Lanes): Fiber {
: clampedUpdateTime >= 0
? clampedUpdateTime
: renderStartTime,
lanes,
);
}
logTransitionStart(
Expand Down Expand Up @@ -3202,9 +3213,13 @@ function commitRootImpl(
// Log the previous render phase once we commit. I.e. we weren't interrupted.
setCurrentTrackFromLanes(lanes);
if (exitStatus === RootErrored) {
logErroredRenderPhase(completedRenderStartTime, completedRenderEndTime);
logErroredRenderPhase(
completedRenderStartTime,
completedRenderEndTime,
lanes,
);
} else {
logRenderPhase(completedRenderStartTime, completedRenderEndTime);
logRenderPhase(completedRenderStartTime, completedRenderEndTime, lanes);
}
}

Expand Down
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