{
  "id": "pixel-dash/virtualized-table-for-100k-rows",
  "slug": "virtualized-table-for-100k-rows",
  "title": "Session: virtualized-table-for-100k-rows — 2026-09-24",
  "type": "source",
  "project": "pixel-dash",
  "date": "2026-09-24",
  "started": "2026-09-24T13:40:00+00:00",
  "ended": "2026-09-24T15:52:00+00:00",
  "model": "gemini-2.5-pro",
  "cwd": "/home/dev/code/pixel-dash",
  "git_branch": "perf/table",
  "permission_mode": "default",
  "user_messages": 1,
  "tool_calls": 4,
  "tools_used": [
    "Bash",
    "Edit",
    "Write"
  ],
  "is_subagent": false,
  "wikilinks_out": [
    "Performance",
    "TanStackVirtual",
    "WebWorkers",
    "pixel-dash"
  ],
  "body_text": "Project: pixel-dash · Branch: perf/table · Mode: default · Model: gemini-2.5-pro\n\nSummary\n\nThe events table froze with 100k rows. Replaced it with a virtualized table (TanStack Virtual), moved sorting into a Web Worker and memoized row renderers; scroll stays at 60 fps and initial render dropped from 4.1 s to 120 ms.\n\nConversation\n\nTurn 1 — User\n\nThe events table is unusable with 100k rows.\n\nTurn 1 — Assistant\n\nProfile shows 100k DOM rows and sorting on the main thread. Virtualize rows, sort in a worker, memoize cells.\n\nTools used in this turn:\n\n- Bash: pnpm add @tanstack/react-virtual\n- Write: src/workers/sort.worker.ts\n- Edit: src/tables/EventsTable.tsx\n- Bash: pnpm bench — render 4100 ms → 120 ms\n\nConnections\n\n- pixel-dash\n- TanStackVirtual\n- WebWorkers\n- Performance",
  "sha256": "acac5afdb9d35eb7",
  "source_url": "sessions/pixel-dash/2026-09-24-virtualized-table-for-100k-rows.html"
}