Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Disable Profiler commit filtering #18862

Merged
merged 2 commits into from May 8, 2020
Merged

Disable Profiler commit filtering #18862

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
9ed51df
Disable Profiler commit filtering
May 7, 2020
f749ea3
Restart flaky CI
May 7, 2020
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Jump to
Jump to file
Failed to load files.
Diff view
Diff view
52 changes: 48 additions & 4 deletions packages/react-devtools-shared/src/__tests__/__snapshots__/profilingCache-test.js.snap
View file
Open in desktop
Expand Up @@ -1500,7 +1500,17 @@ Object {

exports[`ProfilingCache should collect data for each root (including ones added or mounted after profiling started): Data for root Parent 3`] = `
Object {
"commitData": Array [],
"commitData": Array [
Object {
"changeDescriptions": Map {},
"duration": 0,
"fiberActualDurations": Map {},
"fiberSelfDurations": Map {},
"interactionIDs": Array [],
"priorityLevel": "Immediate",
"timestamp": 34,
},
],
"displayName": "Parent",
"initialTreeBaseDurations": Map {
6 => 11,
Expand All @@ -1510,7 +1520,19 @@ Object {
},
"interactionCommits": Map {},
"interactions": Map {},
"operations": Array [],
"operations": Array [
Array [
1,
6,
0,
2,
4,
9,
8,
7,
6,
],
],
"rootID": 6,
"snapshots": Map {
6 => Object {
Expand Down Expand Up @@ -2044,7 +2066,17 @@ Object {
"snapshots": Array [],
},
Object {
"commitData": Array [],
"commitData": Array [
Object {
"changeDescriptions": Array [],
"duration": 0,
"fiberActualDurations": Array [],
"fiberSelfDurations": Array [],
"interactionIDs": Array [],
"priorityLevel": "Immediate",
"timestamp": 34,
},
],
"displayName": "Parent",
"initialTreeBaseDurations": Array [
Array [
Expand All @@ -2066,7 +2098,19 @@ Object {
],
"interactionCommits": Array [],
"interactions": Array [],
"operations": Array [],
"operations": Array [
Array [
1,
6,
0,
2,
4,
9,
8,
7,
6,
],
],
"rootID": 6,
"snapshots": Array [
Array [
Expand Down
57 changes: 26 additions & 31 deletions packages/react-devtools-shared/src/devtools/views/Profiler/utils.js
View file
Open in desktop
Expand Up @@ -60,43 +60,38 @@ export function prepareProfilingDataFrontendFromBackendAndStore(
throw Error(`Could not find profiling snapshots for root ${rootID}`);
}

const filteredCommitData = [];
const filteredOperations = [];

// Filter empty commits from the profiler data.
// It is very important to keep operations and commit data arrays perfect in sync.
// So we must use the same criteria to filter both.
// If these two arrays were to get out of sync, the profiler would runtime error.
// We choose to filter on commit metadata, rather than the operations array,
// because the latter may have false positives,
// (e.g. a commit that re-rendered a component with the same treeBaseDuration as before).
commitData.forEach((commitDataBackend, commitIndex) => {
if (commitDataBackend.fiberActualDurations.length > 0) {
filteredCommitData.push({
changeDescriptions:
commitDataBackend.changeDescriptions != null
? new Map(commitDataBackend.changeDescriptions)
: null,
duration: commitDataBackend.duration,
fiberActualDurations: new Map(
commitDataBackend.fiberActualDurations,
),
fiberSelfDurations: new Map(commitDataBackend.fiberSelfDurations),
interactionIDs: commitDataBackend.interactionIDs,
priorityLevel: commitDataBackend.priorityLevel,
timestamp: commitDataBackend.timestamp,
});
filteredOperations.push(operations[commitIndex]);
}
});
// Do not filter empty commits from the profiler data!
// We used to do this, but it was error prone (see #18798).
// A commit may appear to be empty (no actual durations) because of component filters,
// but filtering these empty commits causes interaction commit indices to be off by N.
// This not only corrupts the resulting data, but also potentially causes runtime errors.
//
// For that matter, hiding "empty" commits might cause confusion too.
// A commit *did happen* even if none of the components the Profiler is showing were involved.
const convertedCommitData = commitData.map(
(commitDataBackend, commitIndex) => ({
changeDescriptions:
commitDataBackend.changeDescriptions != null
? new Map(commitDataBackend.changeDescriptions)
: null,
duration: commitDataBackend.duration,
fiberActualDurations: new Map(
commitDataBackend.fiberActualDurations,
),
fiberSelfDurations: new Map(commitDataBackend.fiberSelfDurations),
interactionIDs: commitDataBackend.interactionIDs,
priorityLevel: commitDataBackend.priorityLevel,
timestamp: commitDataBackend.timestamp,
}),
);

dataForRoots.set(rootID, {
commitData: filteredCommitData,
commitData: convertedCommitData,
displayName,
initialTreeBaseDurations: new Map(initialTreeBaseDurations),
interactionCommits: new Map(interactionCommits),
interactions: new Map(interactions),
operations: filteredOperations,
operations,
rootID,
snapshots,
});
Expand Down