⚡ Bolt: [performance improvement]#61
Conversation
Optimize intermediate iterator allocations in Python builder when formatting stdout.
Removes string-based `.split("\n")` overhead and replaces vector allocations
for `.split(" ").collect::<Vec<_>>()` with direct pattern matching on
iterator elements (`.next()`).
Co-authored-by: cloudesize67-cmd <237356855+cloudesize67-cmd@users.noreply.github.com>
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💡 What: The optimization implements pattern matching directly on
Iterator::next()for word extraction from log lines, completely eliminating heap allocations (.collect::<Vec<_>>().into_iter()) previously used during stdout parsing. Additionally, changes string-based.split("\n")to character-based.split('\n').🎯 Why: Generating Python SDKs spawns subprocesses that generate stdout logs, and allocating multiple
Vecbuffers per log line (for splitting words/lines) creates significant heap pressure. This improves script performance directly.📊 Impact: Reduces heap allocations inside the nested loop from O(N) strings/vectors per character to O(1) by utilizing iterators and matching.
🔬 Measurement: Verify with
make check(clippy) andmake test-generator. Tests show no semantic change while avoiding unnecessary vector collection overhead.PR created automatically by Jules for task 11717631840885431241 started by @cloudesize67-cmd