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Fix createContext update being blocked by sCU #3889

Merged
merged 1 commit into from
Feb 9, 2023
Merged

Fix createContext update being blocked by sCU #3889

merged 1 commit into from
Feb 9, 2023

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marvinhagemeister
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@marvinhagemeister marvinhagemeister commented Feb 9, 2023 •
edited

Came across a compatibility issue with React when it comes to how context updates are applied. When a class component subscribes to the new context API and has a shouldComponentUpdate, it must not call it when the update is triggered by context.

Before this PR we treated context update like a standard update. But the problem is that a falsy sCU could then cancel a context update.

This is the actual source of the problem discovered in preactjs/signals#302 where the sCU added for signal updates would block context updates.

Credits to @mdentremont for finding the key insights that lead to the discovery of the actual source of the bug for the signals issue.

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github-actions bot commented Feb 9, 2023 •
edited

📊 Tachometer Benchmark Results

Summary

duration

  • 02_replace1k: unsure 🔍 -1% - +2% (-3.09ms - +5.13ms)
    preact-local vs preact-master
  • 03_update10th1k_x16: unsure 🔍 -4% - +2% (-1.72ms - +1.10ms)
    preact-local vs preact-master
  • 07_create10k: unsure 🔍 -1% - +0% (-11.31ms - +2.07ms)
    preact-local vs preact-master
  • filter_list: unsure 🔍 -2% - +2% (-0.66ms - +0.59ms)
    preact-local vs preact-master
  • hydrate1k: unsure 🔍 -4% - +1% (-5.40ms - +1.50ms)
    preact-local vs preact-master
  • many_updates: unsure 🔍 -3% - +3% (-1.27ms - +1.06ms)
    preact-local vs preact-master
  • text_update: unsure 🔍 -2% - +0% (-0.07ms - +0.00ms)
    preact-local vs preact-master
  • todo: unsure 🔍 -2% - +1% (-0.85ms - +0.48ms)
    preact-local vs preact-master

usedJSHeapSize

  • 02_replace1k: unsure 🔍 -0% - +0% (-0.01ms - +0.00ms)
    preact-local vs preact-master
  • 03_update10th1k_x16: unsure 🔍 -0% - +0% (-0.01ms - +0.00ms)
    preact-local vs preact-master
  • 07_create10k: unsure 🔍 -0% - +0% (-0.00ms - +0.00ms)
    preact-local vs preact-master
  • filter_list: unsure 🔍 -0% - +0% (-0.00ms - +0.00ms)
    preact-local vs preact-master
  • hydrate1k: unsure 🔍 -8% - +5% (-0.93ms - +0.62ms)
    preact-local vs preact-master
  • many_updates: faster ✔ 0% - 1% (0.01ms - 0.05ms)
    preact-local vs preact-master
  • text_update: unsure 🔍 -0% - +0% (-0.00ms - +0.00ms)
    preact-local vs preact-master
  • todo: unsure 🔍 -0% - +0% (-0.00ms - +0.00ms)
    preact-local vs preact-master

Results

02_replace1k

duration

VersionAvg timevs preact-mastervs preact-localvs preact-hooks
preact-master229.16ms - 235.45ms-unsure 🔍
-2% - +1%
-5.13ms - +3.09ms		unsure 🔍
-3% - +1%
-5.91ms - +1.95ms
preact-local230.67ms - 235.97msunsure 🔍
-1% - +2%
-3.09ms - +5.13ms		-unsure 🔍
-2% - +1%
-4.52ms - +2.59ms
preact-hooks231.92ms - 236.65msunsure 🔍
-1% - +3%
-1.95ms - +5.91ms		unsure 🔍
-1% - +2%
-2.59ms - +4.52ms		-

usedJSHeapSize

VersionAvg timevs preact-mastervs preact-localvs preact-hooks
preact-master3.37ms - 3.38ms-unsure 🔍
-0% - +0%
-0.00ms - +0.01ms		faster ✔
1% - 1%
0.02ms - 0.03ms
preact-local3.37ms - 3.38msunsure 🔍
-0% - +0%
-0.01ms - +0.00ms		-faster ✔
1% - 1%
0.02ms - 0.03ms
preact-hooks3.40ms - 3.41msslower ❌
1% - 1%
0.02ms - 0.03ms		slower ❌
1% - 1%
0.02ms - 0.03ms		-

run-warmup-0

VersionAvg timevs preact-mastervs preact-localvs preact-hooks
preact-master71.13ms - 75.11ms-unsure 🔍
-3% - +4%
-2.42ms - +3.16ms		unsure 🔍
-6% - +1%
-4.28ms - +0.93ms
preact-local70.79ms - 74.71msunsure 🔍
-4% - +3%
-3.16ms - +2.42ms		-unsure 🔍
-6% - +1%
-4.62ms - +0.53ms
preact-hooks73.12ms - 76.47msunsure 🔍
-1% - +6%
-0.93ms - +4.28ms		unsure 🔍
-1% - +6%
-0.53ms - +4.62ms		-

run-warmup-1

VersionAvg timevs preact-mastervs preact-localvs preact-hooks
preact-master97.93ms - 102.12ms-unsure 🔍
-5% - +1%
-4.66ms - +1.10ms		unsure 🔍
-6% - +0%
-6.02ms - +0.13ms
preact-local99.82ms - 103.78msunsure 🔍
-1% - +5%
-1.10ms - +4.66ms		-unsure 🔍
-4% - +2%
-4.16ms - +1.83ms
preact-hooks100.72ms - 105.22msunsure 🔍
-0% - +6%
-0.13ms - +6.02ms		unsure 🔍
-2% - +4%
-1.83ms - +4.16ms		-

run-warmup-2

VersionAvg timevs preact-mastervs preact-localvs preact-hooks
preact-master80.20ms - 85.49ms-unsure 🔍
-5% - +4%
-4.22ms - +3.35ms		slower ❌
2% - 11%
1.71ms - 8.18ms
preact-local80.57ms - 85.99msunsure 🔍
-4% - +5%
-3.35ms - +4.22ms		-slower ❌
3% - 11%
2.09ms - 8.67ms
preact-hooks76.03ms - 79.76msfaster ✔
2% - 10%
1.71ms - 8.18ms		faster ✔
3% - 10%
2.09ms - 8.67ms		-

run-warmup-3

VersionAvg timevs preact-mastervs preact-localvs preact-hooks
preact-master69.39ms - 72.37ms-unsure 🔍
-2% - +4%
-1.61ms - +2.74ms		faster ✔
4% - 9%
3.00ms - 6.77ms
preact-local68.73ms - 71.90msunsure 🔍
-4% - +2%
-2.74ms - +1.61ms		-faster ✔
5% - 10%
3.48ms - 7.40ms
preact-hooks74.61ms - 76.91msslower ❌
4% - 10%
3.00ms - 6.77ms		slower ❌
5% - 11%
3.48ms - 7.40ms		-

run-warmup-4

VersionAvg timevs preact-mastervs preact-localvs preact-hooks
preact-master72.87ms - 75.91ms-unsure 🔍
-3% - +3%
-2.15ms - +2.19ms		faster ✔
3% - 7%
2.00ms - 5.56ms
preact-local72.82ms - 75.92msunsure 🔍
-3% - +3%
-2.19ms - +2.15ms		-faster ✔
3% - 7%
2.00ms - 5.60ms
preact-hooks77.25ms - 79.10msslower ❌
3% - 8%
2.00ms - 5.56ms		slower ❌
3% - 8%
2.00ms - 5.60ms		-

run-final

VersionAvg timevs preact-mastervs preact-localvs preact-hooks
preact-master56.43ms - 58.82ms-unsure 🔍
-5% - +1%
-3.12ms - +0.52ms		unsure 🔍
-2% - +3%
-1.43ms - +1.84ms
preact-local57.55ms - 60.30msunsure 🔍
-1% - +5%
-0.52ms - +3.12ms		-unsure 🔍
-0% - +6%
-0.26ms - +3.28ms
preact-hooks56.30ms - 58.54msunsure 🔍
-3% - +2%
-1.84ms - +1.43ms		unsure 🔍
-6% - +0%
-3.28ms - +0.26ms		-
03_update10th1k_x16

duration

VersionAvg timevs preact-mastervs preact-localvs preact-hooks
preact-master42.95ms - 44.99ms-unsure 🔍
-3% - +4%
-1.10ms - +1.72ms		unsure 🔍
-3% - +3%
-1.47ms - +1.33ms
preact-local42.68ms - 44.64msunsure 🔍
-4% - +2%
-1.72ms - +1.10ms		-unsure 🔍
-4% - +2%
-1.75ms - +0.98ms
preact-hooks43.09ms - 45.00msunsure 🔍
-3% - +3%
-1.33ms - +1.47ms		unsure 🔍
-2% - +4%
-0.98ms - +1.75ms		-

usedJSHeapSize

VersionAvg timevs preact-mastervs preact-localvs preact-hooks
preact-master3.28ms - 3.29ms-unsure 🔍
-0% - +0%
-0.00ms - +0.01ms		faster ✔
0% - 1%
0.01ms - 0.02ms
preact-local3.28ms - 3.29msunsure 🔍
-0% - +0%
-0.01ms - +0.00ms		-faster ✔
0% - 1%
0.02ms - 0.02ms
preact-hooks3.30ms - 3.31msslower ❌
0% - 1%
0.01ms - 0.02ms		slower ❌
0% - 1%
0.02ms - 0.02ms		-
07_create10k

duration

VersionAvg timevs preact-mastervs preact-localvs preact-hooks
preact-master1367.27ms - 1378.05ms-unsure 🔍
-0% - +1%
-2.07ms - +11.31ms		unsure 🔍
-1% - +0%
-9.75ms - +3.28ms
preact-local1364.06ms - 1372.01msunsure 🔍
-1% - +0%
-11.31ms - +2.07ms		-faster ✔
0% - 1%
2.46ms - 13.26ms
preact-hooks1372.24ms - 1379.55msunsure 🔍
-0% - +1%
-3.28ms - +9.75ms		slower ❌
0% - 1%
2.46ms - 13.26ms		-

usedJSHeapSize

VersionAvg timevs preact-mastervs preact-localvs preact-hooks
preact-master25.36ms - 25.36ms-unsure 🔍
-0% - +0%
-0.00ms - +0.00ms		unsure 🔍
-0% - -0%
-0.02ms - -0.02ms
preact-local25.36ms - 25.36msunsure 🔍
-0% - +0%
-0.00ms - +0.00ms		-unsure 🔍
-0% - -0%
-0.02ms - -0.02ms
preact-hooks25.38ms - 25.38msunsure 🔍
+0% - +0%
+0.02ms - +0.02ms		unsure 🔍
+0% - +0%
+0.02ms - +0.02ms		-
filter_list

duration

VersionAvg timevs preact-mastervs preact-localvs preact-hooks
preact-master28.15ms - 28.88ms-unsure 🔍
-2% - +2%
-0.59ms - +0.66ms		unsure 🔍
-2% - +2%
-0.59ms - +0.61ms
preact-local27.98ms - 28.99msunsure 🔍
-2% - +2%
-0.66ms - +0.59ms		-unsure 🔍
-3% - +2%
-0.71ms - +0.67ms
preact-hooks28.03ms - 28.97msunsure 🔍
-2% - +2%
-0.61ms - +0.59ms		unsure 🔍
-2% - +3%
-0.67ms - +0.71ms		-

usedJSHeapSize

VersionAvg timevs preact-mastervs preact-localvs preact-hooks
preact-master1.59ms - 1.59ms-unsure 🔍
-0% - +0%
-0.00ms - +0.00ms		faster ✔
1% - 1%
0.02ms - 0.02ms
preact-local1.59ms - 1.59msunsure 🔍
-0% - +0%
-0.00ms - +0.00ms		-faster ✔
1% - 2%
0.02ms - 0.02ms
preact-hooks1.61ms - 1.61msslower ❌
1% - 1%
0.02ms - 0.02ms		slower ❌
1% - 2%
0.02ms - 0.02ms		-
hydrate1k

duration

VersionAvg timevs preact-mastervs preact-localvs preact-hooks
preact-master124.67ms - 129.41ms-unsure 🔍
-1% - +4%
-1.50ms - +5.40ms		unsure 🔍
-1% - +4%
-1.69ms - +4.83ms
preact-local122.58ms - 127.60msunsure 🔍
-4% - +1%
-5.40ms - +1.50ms		-unsure 🔍
-3% - +2%
-3.74ms - +2.99ms
preact-hooks123.23ms - 127.71msunsure 🔍
-4% - +1%
-4.83ms - +1.69ms		unsure 🔍
-2% - +3%
-2.99ms - +3.74ms		-

usedJSHeapSize

VersionAvg timevs preact-mastervs preact-localvs preact-hooks
preact-master10.95ms - 12.06ms-unsure 🔍
-6% - +8%
-0.62ms - +0.93ms		unsure 🔍
-9% - +3%
-1.13ms - +0.36ms
preact-local10.82ms - 11.89msunsure 🔍
-8% - +5%
-0.93ms - +0.62ms		-unsure 🔍
-11% - +2%
-1.27ms - +0.19ms
preact-hooks11.40ms - 12.39msunsure 🔍
-3% - +10%
-0.36ms - +1.13ms		unsure 🔍
-2% - +11%
-0.19ms - +1.27ms		-
many_updates

duration

VersionAvg timevs preact-mastervs preact-localvs preact-hooks
preact-master37.93ms - 39.67ms-unsure 🔍
-3% - +3%
-1.06ms - +1.27ms		unsure 🔍
-4% - +2%
-1.41ms - +0.83ms
preact-local37.92ms - 39.47msunsure 🔍
-3% - +3%
-1.27ms - +1.06ms		-unsure 🔍
-4% - +2%
-1.45ms - +0.65ms
preact-hooks38.38ms - 39.80msunsure 🔍
-2% - +4%
-0.83ms - +1.41ms		unsure 🔍
-2% - +4%
-0.65ms - +1.45ms		-

usedJSHeapSize

VersionAvg timevs preact-mastervs preact-localvs preact-hooks
preact-master4.63ms - 4.65ms-slower ❌
0% - 1%
0.01ms - 0.05ms		faster ✔
0% - 1%
0.02ms - 0.03ms
preact-local4.59ms - 4.63msfaster ✔
0% - 1%
0.01ms - 0.05ms		-faster ✔
1% - 2%
0.03ms - 0.07ms
preact-hooks4.66ms - 4.66msslower ❌
0% - 1%
0.02ms - 0.03ms		slower ❌
1% - 2%
0.03ms - 0.07ms		-
text_update

duration

VersionAvg timevs preact-mastervs preact-localvs preact-hooks
preact-master2.98ms - 3.04ms-unsure 🔍
-0% - +2%
-0.00ms - +0.07ms		faster ✔
3% - 5%
0.08ms - 0.17ms
preact-local2.95ms - 3.00msunsure 🔍
-2% - +0%
-0.07ms - +0.00ms		-faster ✔
4% - 6%
0.12ms - 0.20ms
preact-hooks3.11ms - 3.17msslower ❌
3% - 6%
0.08ms - 0.17ms		slower ❌
4% - 7%
0.12ms - 0.20ms		-

usedJSHeapSize

VersionAvg timevs preact-mastervs preact-localvs preact-hooks
preact-master0.82ms - 0.82ms-unsure 🔍
-0% - +0%
-0.00ms - +0.00ms		faster ✔
1% - 2%
0.01ms - 0.01ms
preact-local0.82ms - 0.82msunsure 🔍
-0% - +0%
-0.00ms - +0.00ms		-faster ✔
1% - 2%
0.01ms - 0.02ms
preact-hooks0.83ms - 0.83msslower ❌
1% - 2%
0.01ms - 0.01ms		slower ❌
1% - 2%
0.01ms - 0.02ms		-
todo

duration

VersionAvg timevs preact-mastervs preact-localvs preact-hooks
preact-master54.88ms - 55.83ms-unsure 🔍
-1% - +2%
-0.48ms - +0.85ms		unsure 🔍
-2% - +0%
-0.99ms - +0.16ms
preact-local54.71ms - 55.64msunsure 🔍
-2% - +1%
-0.85ms - +0.48ms		-faster ✔
0% - 2%
0.02ms - 1.17ms
preact-hooks55.44ms - 56.10msunsure 🔍
-0% - +2%
-0.16ms - +0.99ms		slower ❌
0% - 2%
0.02ms - 1.17ms		-

usedJSHeapSize

VersionAvg timevs preact-mastervs preact-localvs preact-hooks
preact-master1.09ms - 1.09ms-unsure 🔍
-0% - +0%
-0.00ms - +0.00ms		faster ✔
2% - 3%
0.02ms - 0.03ms
preact-local1.09ms - 1.09msunsure 🔍
-0% - +0%
-0.00ms - +0.00ms		-faster ✔
2% - 3%
0.03ms - 0.03ms
preact-hooks1.11ms - 1.12msslower ❌
2% - 3%
0.02ms - 0.03ms		slower ❌
2% - 3%
0.03ms - 0.03ms		-

tachometer-reporter-action v2 for Benchmarks

@coveralls
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coveralls commented Feb 9, 2023 •
edited

Coverage Status

Coverage: 99.543% (+0.0007%) from 99.543% when pulling cea22e0 on context-scu into 9b83481 on master.

@github-actions
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github-actions bot commented Feb 9, 2023 •
edited

Size Change: +37 B (0%)

Total Size: 54 kB

Filename Size Change
dist/preact.js 4.23 kB +7 B (0%)
dist/preact.min.js 4.26 kB +5 B (0%)
dist/preact.min.module.js 4.26 kB +6 B (0%)
dist/preact.min.umd.js 4.28 kB +6 B (0%)
dist/preact.module.js 4.25 kB +7 B (0%)
dist/preact.umd.js 4.31 kB +6 B (0%)
ℹ️ View Unchanged
Filename Size Change
compat/dist/compat.js 3.81 kB 0 B
compat/dist/compat.module.js 3.75 kB 0 B
compat/dist/compat.umd.js 3.87 kB 0 B
debug/dist/debug.js 3 kB 0 B
debug/dist/debug.module.js 3.01 kB 0 B
debug/dist/debug.umd.js 3.08 kB 0 B
devtools/dist/devtools.js 231 B 0 B
devtools/dist/devtools.module.js 240 B 0 B
devtools/dist/devtools.umd.js 314 B 0 B
hooks/dist/hooks.js 1.49 kB 0 B
hooks/dist/hooks.module.js 1.52 kB 0 B
hooks/dist/hooks.umd.js 1.57 kB 0 B
jsx-runtime/dist/jsxRuntime.js 360 B 0 B
jsx-runtime/dist/jsxRuntime.module.js 326 B 0 B
jsx-runtime/dist/jsxRuntime.umd.js 441 B 0 B
test-utils/dist/testUtils.js 442 B 0 B
test-utils/dist/testUtils.module.js 444 B 0 B
test-utils/dist/testUtils.umd.js 526 B 0 B

compressed-size-action

@marvinhagemeister marvinhagemeister merged commit 1de8059 into master Feb 9, 2023
@marvinhagemeister marvinhagemeister deleted the context-scu branch February 9, 2023 11:33
@marvinhagemeister marvinhagemeister mentioned this pull request Feb 9, 2023
Closed
@marvinhagemeister marvinhagemeister mentioned this pull request Mar 1, 2023
Merged
JoviDeCroock added a commit that referenced this pull request Jan 12, 2024
@JoviDeCroock
backport #3889
95ec691
JoviDeCroock added a commit that referenced this pull request Jan 12, 2024
@JoviDeCroock
chore: backport 10.12.x to v11 (#4255)
36ef4e8 
* backport #3871

* port test from #3884 functionality seems to work in v11

* backport #3880

* backport #3875

* backport #3862

* add todo for #3801

* backport #3868

* backport #3867

* backport #3863

* add todo for #3856

* backport #3844

* backport #3816

* backport #3888

* backport #3889
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@JoviDeCroock JoviDeCroock JoviDeCroock approved these changes

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