chore: add cpu limit for playwright tests

[PupilTong]

Summary by CodeRabbit

• Refactor
  • Enhanced test execution performance by optimizing how the system determines the number of workers based on CPU capacity and environment settings.

[changeset-bot]

⚠️ No Changeset found

Latest commit: bef1d30

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[coderabbitai]

📝 Walkthrough

Walkthrough

The update modifies the logic for setting the workerLimit in the Playwright configuration by introducing a more nuanced calculation based on the system's CPU count and an optional cpu_limit environment variable. The Node.js 'os' module is now imported to access CPU details, replacing the previous, simpler approach.

Changes

Cohort / File(s)	Change Summary
Playwright Worker Limit Logic Update packages/web-platform/web-tests/playwright.config.ts	Imports the Node.js 'os' module and revises the calculation of workerLimit to consider both cpu_limit and actual CPU count, with new logic for systems with more than 32 CPUs.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~7 minutes

Suggested labels

platform:Web

Poem

A bunny hopped to count each core,
To make the tests run, and never bore.
With CPUs tallied, and limits in mind,
The worker count’s now more refined.
From simple halves to clever math,
This code ensures a speedier path!
🐇💻✨

Note

⚡️ Unit Test Generation is now available in beta!

Learn more here, or try it out under "Finishing Touches" below.

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📜 Recent review details

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📥 Commits

Reviewing files that changed from the base of the PR and between f36aefe and bef1d30.

📒 Files selected for processing (1)

• packages/web-platform/web-tests/playwright.config.ts (2 hunks)

🚧 Files skipped from review as they are similar to previous changes (1)

• packages/web-platform/web-tests/playwright.config.ts

✨ Finishing Touches

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[codspeed-hq]

CodSpeed Performance Report

Merging #1465 will not alter performance

_{Comparing PupilTong:p/hw/ci-cpu-limit (bef1d30) with main (a54be73)}

Summary

✅ 10 untouched benchmarks

[relativeci]

Web Explorer

#3857 Bundle Size — 342.66KiB (0%).

bef1d30(current) vs a54be73 main#3848(baseline)

Bundle metrics   1 change

	Current #3857	Baseline #3848
Initial JS	142.35KiB	142.35KiB
Initial CSS	31.84KiB	31.84KiB
Cache Invalidation	0%	0%
Chunks	7	7
Assets	7	7
Modules	211(-0.47%)	212
Duplicate Modules	17	17
Duplicate Code	3.96%	3.96%
Packages	4	4
Duplicate Packages	0	0

Bundle size by type  no changes

	Current #3857	Baseline #3848
JS	227.87KiB	227.87KiB
Other	82.95KiB	82.95KiB
CSS	31.84KiB	31.84KiB

Bundle analysis report Branch PupilTong:p/hw/ci-cpu-limit Project dashboard

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^{Generated by RelativeCI Documentation Report issue}

[relativeci]

React Example

#3862 Bundle Size — 235.26KiB (0%).

bef1d30(current) vs a54be73 main#3853(baseline)

Bundle metrics  no changes

	Current #3862	Baseline #3853
Initial JS	0B	0B
Initial CSS	0B	0B
Cache Invalidation	0%	0%
Chunks	0	0
Assets	4	4
Modules	159	159
Duplicate Modules	64	64
Duplicate Code	45.81%	45.81%
Packages	2	2
Duplicate Packages	0	0

Bundle size by type  no changes

	Current #3862	Baseline #3853
IMG	145.76KiB	145.76KiB
Other	89.5KiB	89.5KiB

Bundle analysis report Branch PupilTong:p/hw/ci-cpu-limit Project dashboard

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ All tests successful. No failed tests found.

📢 Thoughts on this report? Let us know!