TORCH/reports/performance/daily-perf-report-2026-02-24.md

Daily Performance Report - 2026-02-24

Summary

Perf-agent executed. Identified a performance bottleneck in dashboard/app.js where the UI was re-rendering synchronously on every incoming WebSocket event. This could lead to UI freezes during high event volume. A fix was applied to debounce rendering and gate it behind visibility checks.

P0/P1 Findings

• High Priority: dashboard/app.js renderLocks() called synchronously in ws.onmessage.
  • Impact: Potential main-thread blocking and wasted CPU when tab is hidden.
  • Action: Implemented scheduleRender using requestAnimationFrame and !document.hidden. Replaced direct calls with this debounced version.
  • Status: Fixed.

Metrics

• Search Hits: See reports/performance/hits-2026-02-24.json for full inventory of performance-sensitive patterns (setInterval, Promise.all, etc.).

Docs Audit

• Status: Skipped. The /content directory was not found in the repository.

PRs / Issues

• Applied fix directly to dashboard/app.js.