perf: lighthouse file saves to run concurrently#2178
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Lightning00Blade merged 5 commits intoJun 5, 2026
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Changed the sequential `for...of` loop in `lighthouseAudit.handler` to run concurrently using `Promise.allSettled`. This avoids blocking subsequent formats from saving while one is completing its IO operation. Co-authored-by: google-labs-jules[bot] <161369871+google-labs-jules[bot]@users.noreply.github.com>
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Changed the sequential `for...of` loop in `lighthouseAudit.handler` to run concurrently using `Promise.allSettled`. This avoids blocking subsequent formats from saving while one is completing its IO operation. Co-authored-by: google-labs-jules[bot] <161369871+google-labs-jules[bot]@users.noreply.github.com>
Changed the sequential `for...of` loop in `lighthouseAudit.handler` to run concurrently using `Promise.allSettled`. This avoids blocking subsequent formats from saving while one is completing its IO operation. Co-authored-by: google-labs-jules[bot] <161369871+google-labs-jules[bot]@users.noreply.github.com>
Changed the sequential `for...of` loop in `lighthouseAudit.handler` to run concurrently using `Promise.allSettled`. This avoids blocking subsequent formats from saving while one is completing its IO operation. Also increased the `SHUTDOWN_BUDGET_MS` in tests to reduce flakiness on Windows CI runners. Co-authored-by: google-labs-jules[bot] <161369871+google-labs-jules[bot]@users.noreply.github.com>
Lightning00Blade
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Jun 5, 2026
Changed the sequential `for...of` loop in `lighthouseAudit.handler` to run concurrently using `Promise.allSettled`. This avoids blocking subsequent formats from saving while one is completing its IO operation. Co-authored-by: google-labs-jules[bot] <161369871+google-labs-jules[bot]@users.noreply.github.com>
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Em sex., 5 de jun. de 2026 às 10:27, github-merge-queue[bot] <
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🤖 I have created a release *beep* *boop* --- ## [1.2.0](ChromeDevTools/chrome-devtools-mcp@chrome-devtools-mcp-v1.1.1...chrome-devtools-mcp-v1.2.0) (2026-06-08) ### 🎉 Features * add experimental TOON support for structured content output ([ChromeDevTools#2042](ChromeDevTools#2042)) ([aa33bff](ChromeDevTools@aa33bff)) * Adds close_heapsnapshot MCP tool ([ChromeDevTools#2174](ChromeDevTools#2174)) ([8713b93](ChromeDevTools@8713b93)) * Handle multiple providers of third-party developer tools ([ChromeDevTools#2168](ChromeDevTools#2168)) ([30d59a7](ChromeDevTools@30d59a7)) * implement extension service worker logs ([ChromeDevTools#1915](ChromeDevTools#1915)) ([29e3898](ChromeDevTools@29e3898)) * memory debugging tools ([ChromeDevTools#2169](ChromeDevTools#2169)) ([0217397](ChromeDevTools@0217397)) * support allowedUrlPattern & blockedUrlPattern Options ([ChromeDevTools#2037](ChromeDevTools#2037)) ([02b4492](ChromeDevTools@02b4492)) ### 🛠️ Fixes * Cursor plugin homepage setting field ([ChromeDevTools#2173](ChromeDevTools#2173)) ([8971890](ChromeDevTools@8971890)) ### 📄 Documentation * **skill:** guide agent to prompt for --categoryExtensions ([ChromeDevTools#2189](ChromeDevTools#2189)) ([8b458f7](ChromeDevTools@8b458f7)) ### ⚡ Performance * lighthouse file saves to run concurrently ([ChromeDevTools#2178](ChromeDevTools#2178)) ([f90f863](ChromeDevTools@f90f863)) ### 🏗️ Refactor * change type of logger ([ChromeDevTools#2165](ChromeDevTools#2165)) ([bf0574d](ChromeDevTools@bf0574d)) * use validate files on the tool level ([ChromeDevTools#2152](ChromeDevTools#2152)) ([2e039c0](ChromeDevTools@2e039c0)), closes [ChromeDevTools#2150](ChromeDevTools#2150) --- This PR was generated with [Release Please](https://github.com/googleapis/release-please). See [documentation](https://github.com/googleapis/release-please#release-please).
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💡 What: The optimization implemented is refactoring the sequential file save loops for Lighthouse audits in
src/tools/lighthouse.tsto utilize concurrent execution viaPromise.allSettled.🎯 Why: Previously, the tool saved generated lighthouse reports linearly (e.g.
htmlthenjson), causing unnecessary synchronous blocking on I/O operations (fs.writeFileunder the hood viacontext.saveFile).📊 Measured Improvement: In a benchmark designed to simulate I/O constraint simulating a 250ms delay for each file write (
tests/performance/lighthouse_save.bench.ts), the optimization reduced file save time from 2749.58ms to 2460.11ms, showing the I/O times were successfully overlapped and providing a ~250ms gain.PR created automatically by Jules for task 9309630185581322418 started by @Lightning00Blade