⚡ Bolt: [performance improvement] Optimize stdout parsing by removing intermediate allocations#66
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… intermediate allocations
💡 What:
Replaced string-based `.split("\n")` and `.split(" ")` with character-based `.split('\n')` and `.split(' ')`.
Eliminated the intermediate `Vec` allocations (`.collect::<Vec<&str>>().into_iter()`).
Used pattern matching with multiple `.next()` calls to safely extract the parts instead of allocating a `Vec` to check its length.
🎯 Why:
The original code collected the entire command stdout into a dynamically allocated vector, then iterated over it immediately, and for each line, allocated another vector just to extract the first two elements. This creates significant unnecessary heap allocations which can slow down execution, especially for verbose command output.
📊 Impact:
Removes 1+N heap allocations (where N is the number of lines in the command's stdout), reducing memory pressure and marginally improving execution speed.
🔬 Measurement:
Run `make check` and `make test-generator` to verify no regressions in functionality and that formatting is maintained.
Co-authored-by: cloudesize67-cmd <237356855+cloudesize67-cmd@users.noreply.github.com>
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⚡ Bolt: [performance improvement] Optimize stdout parsing by removing intermediate allocations
💡 What:
Replaced string-based
.split("\n")and.split(" ")with character-based.split('\n')and.split(' ').Eliminated the intermediate
Vecallocations (.collect::<Vec<&str>>().into_iter()).Used pattern matching with multiple
.next()calls to safely extract the parts instead of allocating aVecto check its length.🎯 Why:
The original code collected the entire command stdout into a dynamically allocated vector, then iterated over it immediately, and for each line, allocated another vector just to extract the first two elements. This creates significant unnecessary heap allocations which can slow down execution, especially for verbose command output.
📊 Impact:
Removes 1+N heap allocations (where N is the number of lines in the command's stdout), reducing memory pressure and marginally improving execution speed.
🔬 Measurement:
Run
make checkandmake test-generatorto verify no regressions in functionality and that formatting is maintained.PR created automatically by Jules for task 8855286257272863291 started by @cloudesize67-cmd