fusion/.changeset/dashboard-task-list-perf-100plus.md at 757d304a1ae1fd1ed7c4837d99cc5d65d3d69547

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gsxdsm 8dcf25c53a perf(dashboard): index tasks.column/updatedAt and debounce detail fetches

Speeds up task-list load and interaction for projects with 100+ tasks.

- Migration 59 adds idxTasksColumn and idxTasksUpdatedAt; listTasks()
  filters by "column" on every board load and SSE/refresh paths sort by
  updatedAt, so each query was previously a full table scan plus a temp
  B-tree sort.
- Debounce handleEmbeddedOpenDetail in ListView so rapid keyboard/mouse
  navigation no longer fires a heavy /tasks/:id (log + comments) per
  selection; stale-target requests short-circuit.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

2026-05-03 01:06:18 -07:00

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@runfusion/fusion

@runfusion/fusion
patch

Speed up dashboard load and interaction for projects with 100+ tasks.

Two cheap fixes that together cover the dominant hot paths:

DB indexes on tasks.column and tasks.updatedAt (migration 59 in packages/core/src/db.ts). listTasks() filters by "column" on every board load, and the SSE/refresh paths sort by updatedAt; neither column had an index, so each query did a full table scan plus a temp B-tree sort. With 100+ tasks this becomes the dominant cost on initial load.
Debounce embedded detail-pane fetches (packages/dashboard/app/components/ListView.tsx). handleEmbeddedOpenDetail previously fired a full fetchTaskDetail (which pulls log + comments) synchronously on every selection change, so rapid keyboard/mouse navigation through a long list would issue a burst of heavy requests. Fetches are now debounced to 200 ms and stale-target requests short-circuit before hitting the server and before applying state.

986 B Raw Blame History

986 B

Raw Blame History