perf: 5-7x faster packing, 15-20% faster extraction#414
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MarshallOfSound merged 7 commits intomainfrom Mar 28, 2026
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perf: 5-7x faster packing, 15-20% faster extraction#414MarshallOfSound merged 7 commits intomainfrom
MarshallOfSound merged 7 commits intomainfrom
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… block boundary bugs Added 81 robustness tests that uncovered three bugs: - Pickle resize allocated wrong buffer size, causing RangeError on large headers - writeFileListToStream/streamFilesystem didn't await stream flush before returning - Integrity hash emitted spurious empty block when file size hit exact 4MB boundary Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
…ility Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Under Electron, node:fs intercepts .asar paths as virtual archives. Tests that read/write raw .asar files need original-fs via wrappedFs. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Key optimizations: - Buffer-based integrity hashing for files ≤2MB (avoids stream setup overhead) - Batched writes in writeFileListToStream (single write instead of per-file) - Bulk archive read in extractAll (one readSync for entire data section) - Synchronous fast path in insertFile (eliminates Promise allocation per file) - Set-based lookups for ordering and unpackDirs (O(1) vs O(n)) - Parallel metadata resolution in createPackageFromFiles - Optimized crawl symlink filter with early exit Adds benchmark suite (yarn benchmark / yarn benchmark:quick). Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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erickzhao
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erickzhao
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🎉 This PR is included in version 4.1.2 🎉 The release is available on: Your semantic-release bot 📦🚀 |
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Summary
yarn benchmark)What changed
out.writeinstead of one per file)readSyncof entire data section inextractAllinsertFile(no Promise per file)Set-based lookups for ordering and unpackDirscreatePackageFromFilesBenchmark results (10,000 × 256B files)
Test plan
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