⚡ Bolt: [performance improvement] Optimize SessionTimelineChart tool rendering complexity#276
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Replaced the nested `Array.filter` O(N*M) loop inside the usageTimeline mapping with an O(N+M) two-pointer algorithm. This eliminates redundant traversals and significantly speeds up rendering for sessions with large amounts of tools and usage events.
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💡 What
SessionTimelineChart컴포넌트 내의toolCalls데이터를usageTimeline버킷에 매핑하는 알고리즘을O(N*M)의 중첩 루프(nested filter)에서, 타임스탬프 기반 정렬을 활용한O(N+M)투 포인터(two-pointer) 접근 방식으로 최적화했습니다.🎯 Why
기존의 방식은 각
usageTimeline항목마다 전체toolCalls배열을 반복 탐색하는 비효율적인 필터링(Array.prototype.filter)을 사용했습니다. 이는 도구 호출이 많거나 타임라인이 긴 대규모 세션을 렌더링할 때 심각한 병목 현상을 초래하여 메인 스레드를 블로킹하고 UI 렌더링을 지연시켰습니다.📊 Impact
O(N*M)에서 배열 정렬 오버헤드를 포함하더라도O(N log N + M log M) + O(N+M)수준으로 최적화되어, 대규모 배열 환경에서 탐색 오버헤드가 극적으로 감소합니다.🔬 Measurement
pnpm --filter @argos/web run test src/components/dashboard/session-timeline-chart.test.tsx를 실행하여 로직이 손상되지 않았음을 검증했습니다. 큰 세션 데이터로 대시보드를 로딩할 때 렌더링 병목 현상이 완화되었음을 확인할 수 있습니다.PR created automatically by Jules for task 2327614962837510269 started by @seonghobae