[Turbopack] connect children in a batch when task is about to finish

[sokra]

What?

Connects all (new) children once the task is finished instead of each task when it's called.

To keep tasks active while the parent is in progress, but not finished, it uses the new active counter.

Closes PACK-3850

[sokra]

• [Turbopack] connect children in a batch when task is about to finish #74773 : 2 dependent PRs (#74910 , #75112 ) 👈 (View in Graphite)
• [Turbopack] allow to manually mark tasks as root #75436
• [Turbopack] update event_listener to fix hanging bug #75481
• canary

This stack of pull requests is managed by Graphite. Learn more about stacking.

[ijjk]

Tests Passed

[ijjk]

Stats from current PR

Default Build (Increase detected ⚠️)

General

	vercel/next.js canary	vercel/next.js sokra/lazy-connect	Change
buildDuration	16.6s	14.7s	N/A
buildDurationCached	13.9s	11.6s	N/A
nodeModulesSize	391 MB	391 MB	✓
nextStartRea..uration (ms)	399ms	407ms	N/A

Client Bundles (main, webpack)

	vercel/next.js canary	vercel/next.js sokra/lazy-connect	Change
5306-HASH.js gzip	54 kB	53.9 kB	N/A
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main-HASH.js gzip	34.5 kB	34.4 kB	N/A
webpack-HASH.js gzip	1.71 kB	1.71 kB	N/A
Overall change	0 B	0 B	✓

Legacy Client Bundles (polyfills)

	vercel/next.js canary	vercel/next.js sokra/lazy-connect	Change
polyfills-HASH.js gzip	39.4 kB	39.4 kB	✓
Overall change	39.4 kB	39.4 kB	✓

Client Pages

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Client Build Manifests

	vercel/next.js canary	vercel/next.js sokra/lazy-connect	Change
_buildManifest.js gzip	748 B	747 B	N/A
Overall change	0 B	0 B	✓

Rendered Page Sizes

	vercel/next.js canary	vercel/next.js sokra/lazy-connect	Change
index.html gzip	523 B	522 B	N/A
link.html gzip	539 B	537 B	N/A
withRouter.html gzip	520 B	519 B	N/A
Overall change	0 B	0 B	✓

Edge SSR bundle Size

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edge-ssr.js gzip	129 kB	129 kB	N/A
page.js gzip	210 kB	210 kB	N/A
Overall change	0 B	0 B	✓

Middleware size

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middleware.js gzip	31.3 kB	31.3 kB	N/A
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Overall change	844 B	844 B	✓

Next Runtimes

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app-route.ru..prod.js gzip	25.4 kB	25.4 kB	✓
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pages.runtim..prod.js gzip	21.9 kB	21.9 kB	✓
server.runti..prod.js gzip	60.2 kB	60.2 kB	✓
Overall change	1.65 MB	1.65 MB	✓

build cache Overall increase ⚠️

	vercel/next.js canary	vercel/next.js sokra/lazy-connect	Change
0.pack gzip	2.1 MB	2.1 MB	N/A
index.pack gzip	75.1 kB	75.4 kB	⚠️ +293 B
Overall change	75.1 kB	75.4 kB	⚠️ +293 B

Diff details

Diff for main-HASH.js

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Commit: 9711c45