Land size optimization separately by JoviDeCroock · Pull Request #5018 · preactjs/preact

JoviDeCroock · 2026-02-12T06:27:01Z

Extracted size optimization from #5017

github-actions · 2026-02-12T06:27:23Z

📊 Tachometer Benchmark Results

Summary

duration

create10k: unsure 🔍 -1% - +1% (-5.33ms - +4.58ms)
^{preact-local vs preact-main}
filter-list: unsure 🔍 -0% - +1% (-0.06ms - +0.12ms)
^{preact-local vs preact-main}
hydrate1k: unsure 🔍 -0% - +3% (-0.25ms - +1.77ms)
^{preact-local vs preact-main}
many-updates: unsure 🔍 -1% - +2% (-0.19ms - +0.26ms)
^{preact-local vs preact-main}
replace1k: unsure 🔍 -4% - +2% (-2.36ms - +1.05ms)
^{preact-local vs preact-main}
text-update: unsure 🔍 -5% - +1% (-0.10ms - +0.01ms)
^{preact-local vs preact-main}
todo: unsure 🔍 -1% - +0% (-0.27ms - +0.13ms)
^{preact-local vs preact-main}
update10th1k: unsure 🔍 -5% - +1% (-1.53ms - +0.48ms)
^{preact-local vs preact-main}

usedJSHeapSize

create10k: unsure 🔍 +0% - +0% (+0.00ms - +0.00ms)
^{preact-local vs preact-main}
filter-list: unsure 🔍 -0% - +0% (-0.01ms - +0.00ms)
^{preact-local vs preact-main}
hydrate1k: unsure 🔍 -8% - +3% (-0.59ms - +0.22ms)
^{preact-local vs preact-main}
many-updates: unsure 🔍 -0% - +0% (-0.00ms - +0.00ms)
^{preact-local vs preact-main}
replace1k: unsure 🔍 -0% - +0% (-0.00ms - +0.00ms)
^{preact-local vs preact-main}
text-update: unsure 🔍 -4% - +3% (-0.04ms - +0.03ms)
^{preact-local vs preact-main}
todo: unsure 🔍 -0% - +0% (-0.00ms - +0.00ms)
^{preact-local vs preact-main}
update10th1k: unsure 🔍 -0% - +0% (-0.01ms - +0.01ms)
^{preact-local vs preact-main}

Results

create10k

Browser: chrome-headless
Sample size: 50
Built by: CI #5354
Commit: bc6c2e6

duration

Version	Avg time	vs preact-local	vs preact-main
preact-local	896.45ms - 903.64ms	-	unsure 🔍 -1% - +1% -5.33ms - +4.58ms
preact-main	897.01ms - 903.83ms	unsure 🔍 -1% - +1% -4.58ms - +5.33ms	-

usedJSHeapSize

Version	Avg time	vs preact-local	vs preact-main
preact-local	19.20ms - 19.20ms	-	unsure 🔍 +0% - +0% +0.00ms - +0.00ms
preact-main	19.20ms - 19.20ms	unsure 🔍 -0% - -0% -0.00ms - -0.00ms	-

filter-list

Browser: chrome-headless
Sample size: 50
Built by: CI #5354
Commit: bc6c2e6

duration

Version	Avg time	vs preact-local	vs preact-main
preact-local	16.54ms - 16.59ms	-	unsure 🔍 -0% - +1% -0.06ms - +0.12ms
preact-main	16.45ms - 16.62ms	unsure 🔍 -1% - +0% -0.12ms - +0.06ms	-

usedJSHeapSize

Version	Avg time	vs preact-local	vs preact-main
preact-local	1.56ms - 1.56ms	-	unsure 🔍 -0% - +0% -0.01ms - +0.00ms
preact-main	1.56ms - 1.57ms	unsure 🔍 -0% - +0% -0.00ms - +0.01ms	-

hydrate1k

Browser: chrome-headless
Sample size: 90
Built by: CI #5354
Commit: bc6c2e6

duration

Version	Avg time	vs preact-local	vs preact-main
preact-local	61.51ms - 63.00ms	-	unsure 🔍 -0% - +3% -0.25ms - +1.77ms
preact-main	60.81ms - 62.18ms	unsure 🔍 -3% - +0% -1.77ms - +0.25ms	-

usedJSHeapSize

Version	Avg time	vs preact-local	vs preact-main
preact-local	6.59ms - 7.18ms	-	unsure 🔍 -8% - +3% -0.59ms - +0.22ms
preact-main	6.80ms - 7.36ms	unsure 🔍 -3% - +9% -0.22ms - +0.59ms	-

many-updates

Browser: chrome-headless
Sample size: 50
Built by: CI #5354
Commit: bc6c2e6

duration

Version	Avg time	vs preact-local	vs preact-main
preact-local	16.29ms - 16.53ms	-	unsure 🔍 -1% - +2% -0.19ms - +0.26ms
preact-main	16.18ms - 16.57ms	unsure 🔍 -2% - +1% -0.26ms - +0.19ms	-

usedJSHeapSize

Version	Avg time	vs preact-local	vs preact-main
preact-local	3.72ms - 3.72ms	-	unsure 🔍 -0% - +0% -0.00ms - +0.00ms
preact-main	3.72ms - 3.72ms	unsure 🔍 -0% - +0% -0.00ms - +0.00ms	-

replace1k

Browser: chrome-headless
Sample size: 90
Built by: CI #5354
Commit: bc6c2e6

duration

Version	Avg time	vs preact-local	vs preact-main
preact-local	63.11ms - 65.30ms	-	unsure 🔍 -4% - +2% -2.36ms - +1.05ms
preact-main	63.55ms - 66.16ms	unsure 🔍 -2% - +4% -1.05ms - +2.36ms	-

usedJSHeapSize

Version	Avg time	vs preact-local	vs preact-main
preact-local	3.01ms - 3.01ms	-	unsure 🔍 -0% - +0% -0.00ms - +0.00ms
preact-main	3.01ms - 3.01ms	unsure 🔍 -0% - +0% -0.00ms - +0.00ms	-

run-warmup-0

Version	Avg time	vs preact-local	vs preact-main
preact-local	29.14ms - 30.70ms	-	unsure 🔍 -5% - +2% -1.68ms - +0.55ms
preact-main	29.68ms - 31.27ms	unsure 🔍 -2% - +6% -0.55ms - +1.68ms	-

run-warmup-1

Version	Avg time	vs preact-local	vs preact-main
preact-local	34.80ms - 36.49ms	-	unsure 🔍 -3% - +4% -1.11ms - +1.25ms
preact-main	34.76ms - 36.39ms	unsure 🔍 -4% - +3% -1.25ms - +1.11ms	-

run-warmup-2

Version	Avg time	vs preact-local	vs preact-main
preact-local	35.05ms - 36.48ms	-	unsure 🔍 -4% - +1% -1.54ms - +0.45ms
preact-main	35.62ms - 36.99ms	unsure 🔍 -1% - +4% -0.45ms - +1.54ms	-

run-warmup-3

Version	Avg time	vs preact-local	vs preact-main
preact-local	28.73ms - 29.58ms	-	unsure 🔍 -2% - +2% -0.67ms - +0.59ms
preact-main	28.73ms - 29.66ms	unsure 🔍 -2% - +2% -0.59ms - +0.67ms	-

run-warmup-4

Version	Avg time	vs preact-local	vs preact-main
preact-local	26.85ms - 28.51ms	-	unsure 🔍 -2% - +6% -0.61ms - +1.68ms
preact-main	26.35ms - 27.94ms	unsure 🔍 -6% - +2% -1.68ms - +0.61ms	-

run-final

Version	Avg time	vs preact-local	vs preact-main
preact-local	23.21ms - 23.77ms	-	unsure 🔍 -2% - +1% -0.57ms - +0.34ms
preact-main	23.24ms - 23.97ms	unsure 🔍 -1% - +2% -0.34ms - +0.57ms	-

text-update

Browser: chrome-headless
Sample size: 240
Built by: CI #5354
Commit: bc6c2e6

duration

Version	Avg time	vs preact-local	vs preact-main
preact-local	1.76ms - 1.84ms	-	unsure 🔍 -5% - +1% -0.10ms - +0.01ms
preact-main	1.80ms - 1.88ms	unsure 🔍 -1% - +5% -0.01ms - +0.10ms	-

usedJSHeapSize

Version	Avg time	vs preact-local	vs preact-main
preact-local	1.00ms - 1.06ms	-	unsure 🔍 -4% - +3% -0.04ms - +0.03ms
preact-main	1.01ms - 1.06ms	unsure 🔍 -3% - +4% -0.03ms - +0.04ms	-

todo

Browser: chrome-headless
Sample size: 50
Built by: CI #5354
Commit: bc6c2e6

duration

Version	Avg time	vs preact-local	vs preact-main
preact-local	32.14ms - 32.42ms	-	unsure 🔍 -1% - +0% -0.27ms - +0.13ms
preact-main	32.21ms - 32.49ms	unsure 🔍 -0% - +1% -0.13ms - +0.27ms	-

usedJSHeapSize

Version	Avg time	vs preact-local	vs preact-main
preact-local	1.25ms - 1.25ms	-	unsure 🔍 -0% - +0% -0.00ms - +0.00ms
preact-main	1.25ms - 1.25ms	unsure 🔍 -0% - +0% -0.00ms - +0.00ms	-

update10th1k

Browser: chrome-headless
Sample size: 70
Built by: CI #5354
Commit: bc6c2e6

duration

Version	Avg time	vs preact-local	vs preact-main
preact-local	30.20ms - 31.51ms	-	unsure 🔍 -5% - +1% -1.53ms - +0.48ms
preact-main	30.62ms - 32.14ms	unsure 🔍 -2% - +5% -0.48ms - +1.53ms	-

usedJSHeapSize

Version	Avg time	vs preact-local	vs preact-main
preact-local	2.97ms - 2.98ms	-	unsure 🔍 -0% - +0% -0.01ms - +0.01ms
preact-main	2.98ms - 2.99ms	unsure 🔍 -0% - +0% -0.01ms - +0.01ms	-

_{tachometer-reporter-action v2 for CI}

github-actions · 2026-02-12T06:28:13Z

Size Change: -54 B (-0.07%)

Total Size: 79.3 kB

Filename	Size	Change
`dist/preact.js`	4.77 kB	-7 B (-0.15%)
`dist/preact.min.js`	4.79 kB	-10 B (-0.21%)
`dist/preact.min.module.js`	4.8 kB	-8 B (-0.17%)
`dist/preact.min.umd.js`	4.81 kB	-10 B (-0.21%)
`dist/preact.mjs`	4.78 kB	-5 B (-0.1%)
`dist/preact.module.js`	4.78 kB	-5 B (-0.1%)
`dist/preact.umd.js`	4.82 kB	-9 B (-0.19%)

ℹ️ View Unchanged

Filename	Size
`compat/dist/compat.js`	4.22 kB
`compat/dist/compat.mjs`	4.14 kB
`compat/dist/compat.module.js`	4.14 kB
`compat/dist/compat.umd.js`	4.28 kB
`debug/dist/debug.js`	3.85 kB
`debug/dist/debug.mjs`	3.85 kB
`debug/dist/debug.module.js`	3.85 kB
`debug/dist/debug.umd.js`	3.93 kB
`devtools/dist/devtools.js`	260 B
`devtools/dist/devtools.mjs`	274 B
`devtools/dist/devtools.module.js`	274 B
`devtools/dist/devtools.umd.js`	346 B
`hooks/dist/hooks.js`	1.54 kB
`hooks/dist/hooks.mjs`	1.57 kB
`hooks/dist/hooks.module.js`	1.57 kB
`hooks/dist/hooks.umd.js`	1.61 kB
`jsx-runtime/dist/jsxRuntime.js`	1.01 kB
`jsx-runtime/dist/jsxRuntime.mjs`	985 B
`jsx-runtime/dist/jsxRuntime.module.js`	985 B
`jsx-runtime/dist/jsxRuntime.umd.js`	1.08 kB
`test-utils/dist/testUtils.js`	473 B
`test-utils/dist/testUtils.mjs`	477 B
`test-utils/dist/testUtils.module.js`	477 B
`test-utils/dist/testUtils.umd.js`	555 B

_{compressed-size-action}

rschristian

Dang, great find

This reverts commit 6bbfaee.

* Transform forEach to some and consolidate condition (#5020) * Land size optimization separately (#5018) * Make forEach --> some * Backport core optimizations * Revert "Land size optimization separately (#5018)" This reverts commit 6bbfaee. * Flag --> bits

Land size optimization separately

bc6c2e6

JoviDeCroock requested a review from rschristian February 12, 2026 06:28

rschristian approved these changes Feb 12, 2026

View reviewed changes

JoviDeCroock merged commit 3c8506d into v10.x Feb 12, 2026
14 checks passed

JoviDeCroock deleted the land-size-optimization branch February 12, 2026 18:49

JoviDeCroock added a commit that referenced this pull request Feb 14, 2026

Land size optimization separately (#5018)

6bbfaee

JoviDeCroock added a commit that referenced this pull request Feb 14, 2026

Revert "Land size optimization separately (#5018)"

a25e093

This reverts commit 6bbfaee.

JoviDeCroock mentioned this pull request Feb 18, 2026

10.28.4 #5027

Merged

Uh oh!

Conversation

JoviDeCroock commented Feb 12, 2026

Uh oh!

github-actions bot commented Feb 12, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

📊 Tachometer Benchmark Results

Summary

duration

usedJSHeapSize

Results

duration

usedJSHeapSize

duration

usedJSHeapSize

duration

usedJSHeapSize

duration

usedJSHeapSize

duration

usedJSHeapSize

run-warmup-0

run-warmup-1

run-warmup-2

run-warmup-3

run-warmup-4

run-final

duration

usedJSHeapSize

duration

usedJSHeapSize

duration

usedJSHeapSize

Uh oh!

github-actions bot commented Feb 12, 2026

Uh oh!

rschristian left a comment

Choose a reason for hiding this comment

Uh oh!

Uh oh!

Reviewers

Assignees

Labels

Projects

Milestone

Development

Uh oh!

2 participants

Comments

github-actions bot commented Feb 12, 2026 •

edited

Loading