Performance improvements for WordPress 6.5 #57935

ellatrix · 2024-01-17T19:03:33Z

How low can we go?

(*)	WP 6.4	WP 6.5	x faster
Typing (post editor)	60ms	11.4ms	5.25x
Typing (site editor)	57.4ms	11.4ms	5x
First block load (post editor)	7.7s	3.4s	2.25x
First block load (site editor)	8.5s	3.4s	2.4x
Patterns load	3.7s	2.3s	62%

(*) Note that the absolute times are pegged to a relatively random value.

Related PRs

joemcgill · 2024-01-17T21:02:24Z

This is great work, @ellatrix. Just for clarity, is this ticket focused primarily on editor performance, or is the intent to expand this to include front end user performance enhancements as well?

ellatrix · 2024-01-23T21:04:48Z

This is just for editor performance

ellatrix · 2024-03-18T20:46:04Z

Ok, I'm going to run the final comparison between 6.4 and 6.5. We'll do a few runs and then average.

https://github.com/WordPress/gutenberg/actions/runs/8332770843/job/22802686838

run 1

▶ front-end-block-theme
┌────────────────────────┬───────────┬────────────┐
│ (index)                │ wp/6.5    │ wp/6.4     │
├────────────────────────┼───────────┼────────────┤
│ timeToFirstByte        │ '51.5 ms' │ '51.25 ms' │
│ largestContentfulPaint │ '101 ms'  │ '99.95 ms' │
│ lcpMinusTtfb           │ '51.2 ms' │ '48.7 ms'  │
└────────────────────────┴───────────┴────────────┘

▶ front-end-classic-theme
┌────────────────────────┬─────────────┬─────────────┐
│ (index)                │ wp/6.5      │ wp/6.4      │
├────────────────────────┼─────────────┼─────────────┤
│ timeToFirstByte        │ '36.25 ms'  │ '36.95 ms'  │
│ largestContentfulPaint │ '102.05 ms' │ '102.35 ms' │
│ lcpMinusTtfb           │ '63.6 ms'   │ '65.25 ms'  │
└────────────────────────┴─────────────┴─────────────┘

▶ post-editor
┌──────────────────────┬──────────────┬──────────────┐
│ (index)              │ wp/6.5       │ wp/6.4       │
├──────────────────────┼──────────────┼──────────────┤
│ serverResponse       │ '198.25 ms'  │ '206.6 ms'   │
│ firstPaint           │ '316.7 ms'   │ '304.3 ms'   │
│ domContentLoaded     │ '720.65 ms'  │ '721.85 ms'  │
│ loaded               │ '721.55 ms'  │ '722.65 ms'  │
│ firstContentfulPaint │ '1138.65 ms' │ '1290.45 ms' │
│ firstBlock           │ '3399 ms'    │ '7790.95 ms' │
│ type                 │ '12.87 ms'   │ '62.76 ms'   │
│ minType              │ '10.82 ms'   │ '52.76 ms'   │
│ maxType              │ '17.72 ms'   │ '125.44 ms'  │
│ typeWithoutInspector │ '11.25 ms'   │ '53.25 ms'   │
│ typeWithTopToolbar   │ '17.07 ms'   │ '55.2 ms'    │
│ typeContainer        │ '6.48 ms'    │ '13.98 ms'   │
│ minTypeContainer     │ '5.45 ms'    │ '11.13 ms'   │
│ maxTypeContainer     │ '7.9 ms'     │ '17.64 ms'   │
│ focus                │ '46.33 ms'   │ '58.63 ms'   │
│ minFocus             │ '40.51 ms'   │ '52.72 ms'   │
│ maxFocus             │ '62.61 ms'   │ '68.44 ms'   │
│ inserterOpen         │ '32.13 ms'   │ '27.11 ms'   │
│ minInserterOpen      │ '29.32 ms'   │ '24.85 ms'   │
│ maxInserterOpen      │ '39.21 ms'   │ '30.18 ms'   │
│ inserterSearch       │ '6.27 ms'    │ '5.43 ms'    │
│ minInserterSearch    │ '5.94 ms'    │ '4.96 ms'    │
│ maxInserterSearch    │ '6.83 ms'    │ '6.46 ms'    │
│ inserterHover        │ '2.52 ms'    │ '46.25 ms'   │
│ minInserterHover     │ '2.04 ms'    │ '42.72 ms'   │
│ maxInserterHover     │ '3.27 ms'    │ '68.27 ms'   │
│ loadPatterns         │ '1320.46 ms' │ '1793.91 ms' │
│ listViewOpen         │ '139.97 ms'  │ '122.79 ms'  │
│ minListViewOpen      │ '126.32 ms'  │ '114.45 ms'  │
│ maxListViewOpen      │ '165.19 ms'  │ '137.52 ms'  │
└──────────────────────┴──────────────┴──────────────┘

▶ site-editor
┌──────────────────────┬──────────────┬──────────────┐
│ (index)              │ wp/6.5       │ wp/6.4       │
├──────────────────────┼──────────────┼──────────────┤
│ serverResponse       │ '112.05 ms'  │ '111 ms'     │
│ firstPaint           │ '336.05 ms'  │ '333.4 ms'   │
│ domContentLoaded     │ '756.6 ms'   │ '748.3 ms'   │
│ loaded               │ '757.2 ms'   │ '748.65 ms'  │
│ firstContentfulPaint │ '892.95 ms'  │ '899.05 ms'  │
│ firstBlock           │ '3369.1 ms'  │ '8324.15 ms' │
│ type                 │ '10.87 ms'   │ '58.85 ms'   │
│ minType              │ '9.54 ms'    │ '55.79 ms'   │
│ maxType              │ '13.36 ms'   │ '74.8 ms'    │
│ loadPatterns         │ '2272.86 ms' │ '3760.65 ms' │
│ navigate             │ '28.27 ms'   │ '157.4 ms'   │
└──────────────────────┴──────────────┴──────────────┘

run 2

▶ front-end-block-theme
┌────────────────────────┬─────────────┬────────────┐
│ (index)                │ wp/6.5      │ wp/6.4     │
├────────────────────────┼─────────────┼────────────┤
│ timeToFirstByte        │ '50.55 ms'  │ '48.4 ms'  │
│ largestContentfulPaint │ '100.05 ms' │ '95.7 ms'  │
│ lcpMinusTtfb           │ '48.55 ms'  │ '47.05 ms' │
└────────────────────────┴─────────────┴────────────┘

▶ front-end-classic-theme
┌────────────────────────┬────────────┬────────────┐
│ (index)                │ wp/6.5     │ wp/6.4     │
├────────────────────────┼────────────┼────────────┤
│ timeToFirstByte        │ '36.5 ms'  │ '34.7 ms'  │
│ largestContentfulPaint │ '100.3 ms' │ '99.25 ms' │
│ lcpMinusTtfb           │ '63 ms'    │ '63.45 ms' │
└────────────────────────┴────────────┴────────────┘

▶ post-editor
┌──────────────────────┬──────────────┬──────────────┐
│ (index)              │ wp/6.5       │ wp/6.4       │
├──────────────────────┼──────────────┼──────────────┤
│ serverResponse       │ '198.15 ms'  │ '217.75 ms'  │
│ firstPaint           │ '307.95 ms'  │ '309.1 ms'   │
│ domContentLoaded     │ '706.9 ms'   │ '713.55 ms'  │
│ loaded               │ '707.55 ms'  │ '714.3 ms'   │
│ firstContentfulPaint │ '1110.75 ms' │ '1272.95 ms' │
│ firstBlock           │ '3275.4 ms'  │ '7637.05 ms' │
│ type                 │ '10.37 ms'   │ '58.3 ms'    │
│ minType              │ '9.16 ms'    │ '49.38 ms'   │
│ maxType              │ '12.96 ms'   │ '116.32 ms'  │
│ typeWithoutInspector │ '11.18 ms'   │ '50.18 ms'   │
│ typeWithTopToolbar   │ '15.38 ms'   │ '53.24 ms'   │
│ typeContainer        │ '6.18 ms'    │ '12.42 ms'   │
│ minTypeContainer     │ '5.27 ms'    │ '10.81 ms'   │
│ maxTypeContainer     │ '7.02 ms'    │ '15.37 ms'   │
│ focus                │ '41.31 ms'   │ '56 ms'      │
│ minFocus             │ '36.88 ms'   │ '52.84 ms'   │
│ maxFocus             │ '51.77 ms'   │ '59.74 ms'   │
│ inserterOpen         │ '30.85 ms'   │ '25.86 ms'   │
│ minInserterOpen      │ '27.78 ms'   │ '24.09 ms'   │
│ maxInserterOpen      │ '38.02 ms'   │ '29.41 ms'   │
│ inserterSearch       │ '6.06 ms'    │ '5.07 ms'    │
│ minInserterSearch    │ '5.6 ms'     │ '4.85 ms'    │
│ maxInserterSearch    │ '6.68 ms'    │ '5.62 ms'    │
│ inserterHover        │ '2.37 ms'    │ '44.06 ms'   │
│ minInserterHover     │ '1.96 ms'    │ '41.76 ms'   │
│ maxInserterHover     │ '3.02 ms'    │ '48.17 ms'   │
│ loadPatterns         │ '1281.21 ms' │ '1723.65 ms' │
│ listViewOpen         │ '135.06 ms'  │ '122.14 ms'  │
│ minListViewOpen      │ '121.31 ms'  │ '113.08 ms'  │
│ maxListViewOpen      │ '147.77 ms'  │ '137.76 ms'  │
└──────────────────────┴──────────────┴──────────────┘

▶ site-editor
┌──────────────────────┬──────────────┬──────────────┐
│ (index)              │ wp/6.5       │ wp/6.4       │
├──────────────────────┼──────────────┼──────────────┤
│ serverResponse       │ '111.85 ms'  │ '109.95 ms'  │
│ firstPaint           │ '335.3 ms'   │ '326.25 ms'  │
│ domContentLoaded     │ '741.95 ms'  │ '737.05 ms'  │
│ loaded               │ '742.4 ms'   │ '737.55 ms'  │
│ firstContentfulPaint │ '884.25 ms'  │ '878.45 ms'  │
│ firstBlock           │ '3296.4 ms'  │ '8133.3 ms'  │
│ type                 │ '10.58 ms'   │ '56.1 ms'    │
│ minType              │ '9.06 ms'    │ '53.06 ms'   │
│ maxType              │ '12.97 ms'   │ '64.54 ms'   │
│ loadPatterns         │ '2201.86 ms' │ '3672.38 ms' │
│ navigate             │ '22.96 ms'   │ '141.65 ms'  │
└──────────────────────┴──────────────┴──────────────┘

run 3

▶ front-end-block-theme
┌────────────────────────┬─────────────┬────────────┐
│ (index)                │ wp/6.5      │ wp/6.4     │
├────────────────────────┼─────────────┼────────────┤
│ timeToFirstByte        │ '52.15 ms'  │ '51.2 ms'  │
│ largestContentfulPaint │ '101.95 ms' │ '101.2 ms' │
│ lcpMinusTtfb           │ '51.65 ms'  │ '50.1 ms'  │
└────────────────────────┴─────────────┴────────────┘

▶ front-end-classic-theme
┌────────────────────────┬─────────────┬────────────┐
│ (index)                │ wp/6.5      │ wp/6.4     │
├────────────────────────┼─────────────┼────────────┤
│ timeToFirstByte        │ '38.4 ms'   │ '36.75 ms' │
│ largestContentfulPaint │ '103.65 ms' │ '106.2 ms' │
│ lcpMinusTtfb           │ '64.25 ms'  │ '66.45 ms' │
└────────────────────────┴─────────────┴────────────┘

▶ post-editor
┌──────────────────────┬──────────────┬──────────────┐
│ (index)              │ wp/6.5       │ wp/6.4       │
├──────────────────────┼──────────────┼──────────────┤
│ serverResponse       │ '203.75 ms'  │ '223.4 ms'   │
│ firstPaint           │ '323.35 ms'  │ '308.7 ms'   │
│ domContentLoaded     │ '725.35 ms'  │ '719.2 ms'   │
│ loaded               │ '726.25 ms'  │ '720 ms'     │
│ firstContentfulPaint │ '1154.9 ms'  │ '1281.85 ms' │
│ firstBlock           │ '3396.2 ms'  │ '7775.1 ms'  │
│ type                 │ '11.78 ms'   │ '55.97 ms'   │
│ minType              │ '10.52 ms'   │ '51.66 ms'   │
│ maxType              │ '14.97 ms'   │ '61.7 ms'    │
│ typeWithoutInspector │ '11.76 ms'   │ '54.31 ms'   │
│ typeWithTopToolbar   │ '17.2 ms'    │ '55.77 ms'   │
│ typeContainer        │ '6.91 ms'    │ '13.28 ms'   │
│ minTypeContainer     │ '5.68 ms'    │ '11.6 ms'    │
│ maxTypeContainer     │ '8.33 ms'    │ '16.36 ms'   │
│ focus                │ '45.1 ms'    │ '61.88 ms'   │
│ minFocus             │ '40.89 ms'   │ '53.04 ms'   │
│ maxFocus             │ '49.28 ms'   │ '72.1 ms'    │
│ inserterOpen         │ '34.1 ms'    │ '26.72 ms'   │
│ minInserterOpen      │ '29.95 ms'   │ '24.84 ms'   │
│ maxInserterOpen      │ '42.47 ms'   │ '28.59 ms'   │
│ inserterSearch       │ '6.53 ms'    │ '6.55 ms'    │
│ minInserterSearch    │ '5.85 ms'    │ '4.8 ms'     │
│ maxInserterSearch    │ '7.24 ms'    │ '15.72 ms'   │
│ inserterHover        │ '2.63 ms'    │ '48.4 ms'    │
│ minInserterHover     │ '2.16 ms'    │ '42.79 ms'   │
│ maxInserterHover     │ '3.79 ms'    │ '70.63 ms'   │
│ loadPatterns         │ '1323.25 ms' │ '1870.89 ms' │
│ listViewOpen         │ '148.2 ms'   │ '126.22 ms'  │
│ minListViewOpen      │ '127.59 ms'  │ '121.74 ms'  │
│ maxListViewOpen      │ '177.06 ms'  │ '139.61 ms'  │
└──────────────────────┴──────────────┴──────────────┘

▶ site-editor
┌──────────────────────┬──────────────┬──────────────┐
│ (index)              │ wp/6.5       │ wp/6.4       │
├──────────────────────┼──────────────┼──────────────┤
│ serverResponse       │ '84.3 ms'    │ '114.95 ms'  │
│ firstPaint           │ '343.15 ms'  │ '332 ms'     │
│ domContentLoaded     │ '772.15 ms'  │ '759.95 ms'  │
│ loaded               │ '772.85 ms'  │ '760.55 ms'  │
│ firstContentfulPaint │ '920.05 ms'  │ '903.15 ms'  │
│ firstBlock           │ '3475.75 ms' │ '8494.75 ms' │
│ type                 │ '12.37 ms'   │ '59.5 ms'    │
│ minType              │ '10.44 ms'   │ '55.63 ms'   │
│ maxType              │ '15.29 ms'   │ '72.9 ms'    │
│ loadPatterns         │ '2455.17 ms' │ '3833.62 ms' │
│ navigate             │ '28.1 ms'    │ '157.71 ms'  │
└──────────────────────┴──────────────┴──────────────┘

run 4

▶ front-end-block-theme
┌────────────────────────┬────────────┬────────────┐
│ (index)                │ wp/6.5     │ wp/6.4     │
├────────────────────────┼────────────┼────────────┤
│ timeToFirstByte        │ '48.95 ms' │ '48.35 ms' │
│ largestContentfulPaint │ '97.75 ms' │ '96.35 ms' │
│ lcpMinusTtfb           │ '48.8 ms'  │ '48.25 ms' │
└────────────────────────┴────────────┴────────────┘

▶ front-end-classic-theme
┌────────────────────────┬────────────┬────────────┐
│ (index)                │ wp/6.5     │ wp/6.4     │
├────────────────────────┼────────────┼────────────┤
│ timeToFirstByte        │ '36.5 ms'  │ '34.4 ms'  │
│ largestContentfulPaint │ '99.95 ms' │ '99.9 ms'  │
│ lcpMinusTtfb           │ '64.8 ms'  │ '62.55 ms' │
└────────────────────────┴────────────┴────────────┘

▶ post-editor
┌──────────────────────┬──────────────┬──────────────┐
│ (index)              │ wp/6.5       │ wp/6.4       │
├──────────────────────┼──────────────┼──────────────┤
│ serverResponse       │ '195.65 ms'  │ '214.85 ms'  │
│ firstPaint           │ '303.45 ms'  │ '305.85 ms'  │
│ domContentLoaded     │ '708.05 ms'  │ '713.75 ms'  │
│ loaded               │ '708.75 ms'  │ '714.45 ms'  │
│ firstContentfulPaint │ '1112.2 ms'  │ '1261.55 ms' │
│ firstBlock           │ '3442.95 ms' │ '7572.7 ms'  │
│ type                 │ '10.47 ms'   │ '61.76 ms'   │
│ minType              │ '9.3 ms'     │ '48.63 ms'   │
│ maxType              │ '12.96 ms'   │ '144.66 ms'  │
│ typeWithoutInspector │ '10.33 ms'   │ '49.9 ms'    │
│ typeWithTopToolbar   │ '15.23 ms'   │ '57.96 ms'   │
│ typeContainer        │ '6.33 ms'    │ '12.64 ms'   │
│ minTypeContainer     │ '5.11 ms'    │ '10.61 ms'   │
│ maxTypeContainer     │ '7.45 ms'    │ '16.18 ms'   │
│ focus                │ '43.45 ms'   │ '54.19 ms'   │
│ minFocus             │ '36.05 ms'   │ '50.93 ms'   │
│ maxFocus             │ '57.37 ms'   │ '59.38 ms'   │
│ inserterOpen         │ '31.5 ms'    │ '25.46 ms'   │
│ minInserterOpen      │ '27.67 ms'   │ '23.78 ms'   │
│ maxInserterOpen      │ '47.8 ms'    │ '31.72 ms'   │
│ inserterSearch       │ '6.14 ms'    │ '5.19 ms'    │
│ minInserterSearch    │ '5.73 ms'    │ '4.7 ms'     │
│ maxInserterSearch    │ '6.71 ms'    │ '5.7 ms'     │
│ inserterHover        │ '2.44 ms'    │ '43.86 ms'   │
│ minInserterHover     │ '1.93 ms'    │ '41.06 ms'   │
│ maxInserterHover     │ '3.03 ms'    │ '62.15 ms'   │
│ loadPatterns         �� '1250.67 ms' │ '1749.79 ms' │
│ listViewOpen         │ '136.59 ms'  │ '122.82 ms'  │
│ minListViewOpen      │ '124.4 ms'   │ '112.7 ms'   │
│ maxListViewOpen      │ '151.88 ms'  │ '136.72 ms'  │
└──────────────────────┴──────────────┴──────────────┘

▶ site-editor
┌──────────────────────┬──────────────┬──────────────┐
│ (index)              │ wp/6.5       │ wp/6.4       │
├──────────────────────┼──────────────┼──────────────┤
│ serverResponse       │ '97.35 ms'   │ '110.95 ms'  │
│ firstPaint           │ '353.45 ms'  │ '327.65 ms'  │
│ domContentLoaded     │ '768.25 ms'  │ '730.5 ms'   │
│ loaded               │ '768.8 ms'   │ '730.85 ms'  │
│ firstContentfulPaint │ '912.7 ms'   │ '866.15 ms'  │
│ firstBlock           │ '3430.05 ms' │ '8086.5 ms'  │
│ type                 │ '11.93 ms'   │ '55.29 ms'   │
│ minType              │ '10.19 ms'   │ '53.19 ms'   │
│ maxType              │ '13.66 ms'   │ '65.06 ms'   │
│ loadPatterns         │ '2205.7 ms'  │ '3549.63 ms' │
│ navigate             │ '24.87 ms'   │ '145.35 ms'  │
└──────────────────────┴──────────────┴──────────────┘

ellatrix · 2024-03-19T00:15:57Z

Ok so the averages from 4 runs:

Type post editor: (12.87+10.37+11.78+10.47) / (62.76+58.3+55.97+61.76) = 0.19050211482 = 5.25x (525%)
Type site editor: (10.87+10.58+12.37+11.93) / (58.85+56.1+59.5+55.29) = 0.19913815617 = 5x (500%)
Load post editor: (3399+3275.4+3396.2+3442.95) / (7790.95+7637.05+7775.1+7572.7) = 0.43909662787 = 2.28x (228%)
Load site editor: (3369.1+ 3296.4+3475.75+3430.05) / (8324.15+ 8133.3+8494.75+8086.5) = 0.41076979421 = 2.43x (243%)
Load patterns: (2272.86+ 2201.86+ 2455.17+ 2205.7) / (3760.65+ 3672.38+ 3833.62+ 3549.63) = 0.61659134411 = 62%

ellatrix · 2024-03-19T01:10:53Z

Oh also navigating the site editor (thanks to @youknowriad):

~~(28.27+ 22.96+ 28.1+ 24.87) / (157.4+ 141.65+ 157.71+ 145.35) = 0.17305807908 = 5.77x (577%)~~

Apparently there's an issue with the measurement of site editor navigation and the work done moved to a different event handler.

annezazu · 2024-03-21T20:24:46Z

With this recent update and the 6.5 nearly out the door, I'm going to close this issue as complete! Amazing work, Ella. Thank you for the continued updates here.

ellatrix added [Type] Performance Related to performance efforts [Type] Tracking Issue Tactical breakdown of efforts across the codebase and/or tied to Overview issues. labels Jan 17, 2024

Mamaduka mentioned this issue Feb 5, 2024

Blocks: Introduce 'getBlockIcon' and 'getBlockTitle` selectors #58641

Open

ellatrix mentioned this issue Mar 19, 2024

Epic: 6.5 release highlight grid (visual asset) #58028

Closed

2 tasks

annezazu mentioned this issue Mar 19, 2024

Epic: 6.5 Microsite #58577

Closed

3 tasks

annezazu added [Type] Iteration Scoped iteration of an effort from a tracking issue or overview issue ideally for a major release. and removed [Type] Tracking Issue Tactical breakdown of efforts across the codebase and/or tied to Overview issues. labels Mar 21, 2024

annezazu changed the title ~~Performance Tracking issue (WP 6.5)~~ Mar 21, 2024

annezazu closed this as completed Mar 21, 2024

ellatrix changed the title ~~Performance improvements planned for WordPress 6.5~~ Mar 29, 2024

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Performance improvements for WordPress 6.5 #57935

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Performance improvements for WordPress 6.5 #57935

Performance improvements for WordPress 6.5 #57935

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