⚡ Optimize keyword extraction to reduce allocations#98
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- Removed repeated allocations for string cloning, concatenation, and full-text lowercasing. - Implemented zero-allocation iterator-based word splitting and filtering. - Used `eq_ignore_ascii_case` for common word filtering to avoid allocating lowercase strings for common words. - Added `Vec::with_capacity` heuristic to reduce reallocations. - Verified with existing tests and custom benchmark (approx 1.2x speedup on small inputs). Co-authored-by: myaple <10523487+myaple@users.noreply.github.com>
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myaple
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perf/optimize-keyword-extraction-3310153023293674752
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Optimized the
extract_keywordsfunction insrc/repo_context.rsto reduce memory allocations and improve performance. The original implementation involved cloning the title, concatenating the description, converting the entire text to lowercase, and allocating strings for every word before filtering. The new implementation iterates over the original text slices, checks for common words using case-insensitive comparison without allocation, and only allocates memory for valid keywords. This results in reduced GC pressure and improved CPU efficiency.PR created automatically by Jules for task 3310153023293674752 started by @myaple