Optimize chunking to tokenize once per document #9
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Instead of calling countTokens() multiple times during binary search for chunk boundaries, tokenize the document once upfront and slice token arrays. This reduces tokenizer calls from O(chunks × iterations) to O(1) per document. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <[email protected]>
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Instead of calling countTokens() multiple times during binary search for chunk boundaries, tokenize the document once upfront and slice token arrays. This reduces tokenizer calls from O(chunks × iterations) to O(1) per document.
Reduces full rechunking on my collections from ~70s to ~20s