perf(build): reduce package size and optimize V8 heap memory footprint - #617
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atharva9167j wants to merge 3 commits into
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perf(build): reduce package size and optimize V8 heap memory footprint#617atharva9167j wants to merge 3 commits into
atharva9167j wants to merge 3 commits into
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- Exclude dead-weight `node_modules` from `app.asar` packaging: all frontend and electron main process modules are already bundled into `dist/` and `dist-electron/` by Vite, saving ~238 MB of redundant files. - Deduplicate assets in `electron-builder.json5`: exclude `wallpapers/`, `cursors/`, and `mediapipe/` from `app.asar` as they are already provisioned via `extraResources` for raw filesystem access by the native compositor, saving ~17 MB. - Exclude documentation assets (`demo.gif`, `preview*.png`) from `app.asar` packaging (~8 MB saved). - Exclude unused `ffmpeg-shared.exe` from Windows `extraResources`. - Restrict `electronLanguages` to the 13 supported locales, removing 42 unneeded Chromium locale `.pak` files (~20 MB saved). - Set `compression: "maximum"` in `electron-builder.json5` to enable solid LZMA2 compression for Windows installers and release archives. - Add `--optimize-for-size` V8 engine flag in `electron/main.ts` to reduce heap footprint across renderer and background processes.
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Included review availability: Your plan provides up to 8 included reviews per hour; 7 remain after this review. 📝 WalkthroughWalkthroughElectron packaging now uses maximum compression, supported locales, and narrower resource filters. Runtime documentation clarifies the renderer-only scope of the V8 switch. MediaPipe attribution now identifies the packaged model location. ChangesElectron optimization
Estimated code review effort: 2 (Simple) | ~10 minutes Merge Risk: ⚪ Minimal · up to Packaging optimizations reduce application and installer size while preserving the documented MediaPipe resource location. No current merge-blocking risk remains. 🚥 Pre-merge checks | ✅ 5✅ Passed checks (5 passed)
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Inline comments:
In `@electron-builder.json5`:
- Line 97: Update the MediaPipe path referenced by the packaging configuration
to use resources/mediapipe/ instead of the incorrect app.asar/dist/mediapipe/
location, so THIRD-PARTY-NOTICES.md points users to the shipped models and
attribution.
In `@electron/main.ts`:
- Line 80: Clarify the scope of the js-flags configuration around
app.commandLine.appendSwitch: do not claim it configures the main-process V8
isolate, and either limit the documentation or PR claim to renderer processes or
arrange for --js-flags to be supplied when launching Electron if main-process
coverage is required.
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electron-builder.json5electron/main.ts
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Summary
This PR reduces application package and installed footprint by eliminating dead-weight dependencies and duplicate assets from packaging, and tunes renderer V8 heap usage:
node_modulesfromapp.asar: All frontend and Electron code is bundled intodist/anddist-electron/by Vite, eliminating duplicate runtime packages insideapp.asar.wallpapers/,cursors/, andmediapipe/fromapp.asar, since these are already provisioned viaextraResourcesfor raw filesystem access by the native compositor.THIRD-PARTY-NOTICES.md: Points MediaPipe model notice toresources/mediapipe/to match actual packaged resource path.demo.gifandpreview*.pngfromapp.asar.ffmpeg-shared.exefrom WindowsextraResources.electronLanguagesto retain only OpenScreen's 13 supported languages, pruning unneeded.pakfiles."compression": "maximum"inelectron-builder.json5.--optimize-for-sizeV8 flag inelectron/main.tsto reduce heap allocation in spawned renderer processes (note: does not alter the already-initialized main process V8 isolate).Results
resources/app.asarreduced from ~275 MB to 10.21 MB (-96%).Type of change
Release impact
Desktop impact
Screenshots / video
N/A (build and packaging configuration changes only; no UI changes).
Testing
Typechecking & Linting:
Passed with 0 errors.
Native Addon & Helper Verification:
compositor_view.noderequire and methods (createView,setScene,readFrame,exportMulti,probeBackend).npm run test:wgc-helper:win-> Verified hardware H.264 screen recording ("success": true).whisper-stt-server.exeresponds.Packaged Binary Execution Test:
release/1.10.0/win-unpacked/Openscreen.exe info-> Passed (arguments parsed, ASAR loaded).release/1.10.0/win-unpacked/Openscreen.exe sources --json-> Passed (Chromium initialized, IPC executed, displays and audio devices enumerated).