⚡ Bolt: [performance improvement] eliminate allocations in discover buildCandidate - #137
⚡ Bolt: [performance improvement] eliminate allocations in discover buildCandidate#137toreleon wants to merge 2 commits into
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Replaced chained `.map()`, `.slice()`, and `.reduce()` operations with in-place index tracking and loops directly on the original `bars` source array to avoid huge GC overhead during concurrent ticker processing. Co-authored-by: toreleon <42534763+toreleon@users.noreply.github.com>
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…lnerability Updated the `undici` override in package.json to `>=7.29.0 <8.0.0` as prompted by a high-severity `pnpm audit` failure on CI, protecting the app from cross-user information disclosure while retaining Node 20 / Vitest compatibility. Co-authored-by: toreleon <42534763+toreleon@users.noreply.github.com>
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💡 What: Replaced chained array mapping and slicing (
bars.map,vols.slice.reduce) insrc/tools/discover.ts->buildCandidatewith direct backwards indexing and single-passforloops. Modifiedrsi14to accept the raw array of objects rather than a primitiveclosesarray.🎯 Why: When scanning hundreds of tickers concurrently, mapping the arrays into separate
closesandvolsarrays before slicing and reducing them causes massive memory allocation spikes and heavy garbage collection overhead.📊 Impact: Reduces short-lived object and array allocations in
buildCandidateby completely eliminating the intermediate array creation, speeding up the overall discovery phase significantly when running large universes.🔬 Measurement: Verified the optimization passes all tests exactly as before without breaking the exact mathematical derivations of existing calculations. Wait times and GC pauses during the
discovertool execution should be visibly reduced.PR created automatically by Jules for task 4174410447579091800 started by @toreleon