docs: update performance benchmarks

[carlos-alm]

Summary

• Update performance benchmarks in generated/BENCHMARKS.md
• Update benchmark badge/stats in README.md

Test plan

• No code changes — docs only

[claude]

Claude finished @carlos-alm's task —— View job

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PR Review Complete

Reviewing PR #60: "docs: update performance benchmarks"

Todo List:

• Read and analyze changed files
• Phase 1: Root Cause Analysis
• Phase 2: Configuration Change Detection
• Phase 3: Test Integrity Assessment
• Phase 4: Code Quality Review
• Provide final rating and recommendation

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Root Cause Analysis

Problem Being Solved: Updating performance benchmarks to reflect latest codegraph v2.1.0 measurements. This appears to be routine maintenance of documentation that tracks self-measured performance metrics.

Why This Approach: The changes are limited to two documentation files - updating metrics in README.md and the full benchmark history in generated/BENCHMARKS.md. This is the appropriate way to maintain current performance data.

Risk Assessment: Very Low Risk - This is pure documentation update with no code, configuration, or test changes.

Critical Concerns (if any)

None identified. This is a straightforward documentation update with:

• No configuration changes that could hide underlying issues
• No test modifications or weakened assertions
• No code changes that could introduce bugs
• No relaxed linting rules or disabled warnings

Detailed Review

Phase 1: Root Cause Analysis ✅

• Legitimate purpose: Updating performance benchmarks after v2.1.0 release
• No symptom masking: These are genuine performance measurements, not attempts to hide issues
• Justified approach: Direct documentation update is the correct method

Phase 2: Configuration Change Detection ✅

• No configuration changes detected
• No linting/build rule modifications
• No test timeout or threshold changes
• Files modified are pure documentation (.md files only)

Phase 3: Test Integrity ✅

• No test files modified
• No test assertions weakened or removed
• No test coverage changes
• Test plan correctly states "No code changes — docs only"

Phase 4: Code Quality ✅

• Documentation accuracy: New metrics align with expected v2.1.0 improvements
• Consistency: Updates in both README.md and generated/BENCHMARKS.md are consistent
• Format compliance: Maintains existing table format and structure
• Data integrity: JSON benchmark data includes proper version/date metadata

Performance Data Validation

The updated metrics show expected patterns:

• Native engine improvement: 2.5ms → 1.9ms per file (24% faster) - reasonable optimization
• WASM engine regression: 5.0ms → 6.6ms per file (32% slower) - concerning but documented
• Consistent file count: 89 → 92 files (codebase growth)
• Proper versioning: v2.0.0 → v2.1.0 with current date

Note on WASM regression: The 32% performance regression in WASM mode should be investigated in a separate issue, but documenting it accurately here is correct.

Final Recommendation

• Rating: ⭐⭐⭐⭐⭐ (5/5)
• Action: APPROVE
• Reasoning: This is an exemplary documentation-only PR. It updates performance benchmarks with accurate data, maintains consistency across files, includes proper metadata, and involves zero risk to the codebase. The changes are exactly what they claim to be - routine benchmark updates following a release.

Recommendation: Approve and merge immediately. Consider opening a separate issue to investigate the WASM performance regression shown in the new benchmarks.

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[greptile-apps]

Greptile Summary

Updates performance benchmarks to v2.1.0, showing 24% faster native builds (1.9 ms/file vs 2.5 ms/file) and updated extrapolations for 50k files.

• Native build speed improved from 2.5 to 1.9 ms/file
• WASM build speed changed from 5.0 to 6.6 ms/file
• All per-file metrics and 50k-file extrapolations mathematically verified
• Consistent data between README.md summary table and full BENCHMARKS.md history

Confidence Score: 5/5

• Documentation-only update with verified calculations, safe to merge
• All benchmark numbers are mathematically consistent between raw data and per-file metrics; no code changes; calculations verified for native/WASM builds and 50k-file extrapolations
• No files require special attention

Important Files Changed

Filename	Overview
README.md	Updated benchmark stats with v2.1.0 performance numbers, all calculations verified
generated/BENCHMARKS.md	Added v2.1.0 benchmark data with correct per-file metrics and extrapolations

_{Last reviewed commit: aa6561b}

[greptile-apps]

_{2 files reviewed, no comments}

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