⚡ [performance improvement] Memoize getAirlineOps in loop#6
⚡ [performance improvement] Memoize getAirlineOps in loop#6TargetMisser wants to merge 2 commits intomainfrom
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Memoizes the lookups of getAirlineOps with a locally scoped cache to prevent repeatedly scanning through the AIRLINE_OPS array inside an iterative loop. This provides a measurable reduction in CPU execution time when scheduling notifications. Co-authored-by: TargetMisser <52361977+TargetMisser@users.noreply.github.com>
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Memoizes the lookups of getAirlineOps with a locally scoped cache to prevent repeatedly scanning through the AIRLINE_OPS array inside an iterative loop. This provides a measurable reduction in CPU execution time when scheduling notifications. Also updates `package-lock.json` to resolve `npm ci` failures. Co-authored-by: TargetMisser <52361977+TargetMisser@users.noreply.github.com>
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💡 What: Added a local map
opsCacheto memoize the lookups togetAirlineOps(airline)inside the iteration loopfor (const item of shiftDepartures)insrc/utils/autoNotifications.ts.🎯 Why: To prevent repeatedly linearly scanning through$O(1)$ lookup time for each already-observed airline in the shift loop.
AIRLINE_OPSin the inner loop of checking notifications for many flights. The dictionary/map provides an amortized📊 Measured Improvement:
Created a focused benchmark isolating
getAirlineOps()loop executions. Executed 100,000 iterations over 10 repeated flight strings:Baseline:
Without cache: ~125.29 ms
Optimized:
With cache: ~16.80 ms
The lookup execution time over 100k iterations reduced by ~86% (-108ms on Node, which will result in improved responsiveness when fetching from the slower JS context inside Expo React Native).
PR created automatically by Jules for task 578460865552011361 started by @TargetMisser