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…ons and iteration - Replaces `records.reduce()` in `statsFromRecords` (`src/tui/hooks/useAgentStream.ts`) to avoid object allocations in a hot path. - Replaces `snap.positions.reduce()` in `markToMarket` (`src/agent/backtestRunner.ts`) to eliminate function allocation. - Consolidates three `.reduce()` calls into a single `for` loop in `runBacktestSession` summary stats generation to convert O(3N) iteration to O(N). Co-authored-by: toreleon <42534763+toreleon@users.noreply.github.com>
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💡 What: Replaced several instances of
Array.prototype.reduce()with explicitforloops in hot paths likeuseAgentStream.tsandbacktestRunner.ts. InrunBacktestSession, three separate.reduce()iterations over the same array were consolidated into a single loop.🎯 Why: Using
.reduce()to accumulate objects in hot paths creates unnecessary object allocations and causes garbage collection (GC) overhead. Additionally, chaining.reduce()calls sequentially over the same array iterates O(N*K) times.📊 Impact: Reduces GC pauses for large chat sessions by skipping object allocations during session record parsing. Reduces array iteration for backtest summary generation from O(3N) to O(N).
🔬 Measurement: Verified that
pnpm typecheckandpnpm testpass. The tests enforce correctness, showing that mathematical accuracy and application logic are completely preserved.PR created automatically by Jules for task 10740336878523753329 started by @toreleon