# NousResearch/hermes-agent · GlyphSpinner performance: reduce React and style recalcs

## Open now

- Nothing open on GitHub.

These issues and PRs focus on GlyphSpinner causing excessive React commits and document-scale style recalculations in Desktop sessions. The work explores moving spinner animation off React and onto the compositor to reduce rendering overhead.

## TL;DR

- 7 member(s): 0 open issue(s), 1 closed issue(s), 0 open PR(s), 2 merged PR(s), 4 PR(s) closed without merging.
- A fix was merged to main in PR #78266. Verify it addresses your case.
- **Recommended:** read PR #78266 (and any competing PRs below) before filing. Confirm the merged change covers your symptom.

## Maintainer resolution verdict

- Internal-tracker verdict over this cluster's issue members: `resolved` · deciding PR(s): `pr-91473`. This is distinct from the fix status above. Weigh it yourself.

## How this cluster was grouped

- Link evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.
- Pairwise link density `0.43`: the share of member pairs that carry a link, counting a structural link in full and a relevance-only link at 0.36. `1.00` means every pair is linked.

## Closed / duplicate issues

- #72844: \[Bug\]: GlyphSpinner causes ~12.6 React commits/s in busy-but-silent Desktop sessions

## Prior & competing PRs

- **#78266: perf(desktop): keep GlyphSpinner frames out of React commits (#74357 salvage)**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`; implication `superseded`
  - files: `apps/desktop/src/components/ui/glyph-spinner.test.tsx`, `apps/desktop/src/components/ui/glyph-spinner.tsx`
- **#91473: perf(desktop): spinners animate on the compositor — no more document-scale recalcs (salvage #89869)**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`; implication `superseded`
  - files: `apps/desktop/e2e/glyph-spinner.spec.ts`, `apps/desktop/scripts/run-short-session-hang-repro.mjs`, `apps/desktop/src/app/chat/chat-swap-overlay.test.tsx`, `apps/desktop/src/app/chat/chat-swap-overlay.tsx`, `apps/desktop/src/components/assistant-ui/thread/assistant-message.tsx`, `apps/desktop/src/components/assistant-ui/thread/inter-agent-collapse.test.tsx`, `apps/desktop/src/components/assistant-ui/thread/preview-embeds.test.tsx`, `apps/desktop/src/components/assistant-ui/thread/status-invalidation-scope.test.tsx`, `apps/desktop/src/components/ui/glyph-spinner.css`, `apps/desktop/src/components/ui/glyph-spinner.test.tsx`, `apps/desktop/src/components/ui/glyph-spinner.tsx`, `apps/desktop/src/styles.css`
- **#73033: fix(desktop): stop GlyphSpinner React churn**. closed without merge
  - maintainer direction: category `uncategorized`; implication `needs_llm`; refs `#74357`
- **#74357: perf(desktop): keep GlyphSpinner frames out of React commits**. closed without merge
  - maintainer direction: category `superseded_by_pr`; implication `superseded`; refs `#73033`, `#78266`
- **#89805: perf(desktop): eliminate GlyphSpinner-driven document-scale style recalcs**. closed without merge
  - maintainer direction: category `superseded_by_pr`; implication `superseded`; refs `#89869`, `#89869`
- **#89869: perf(desktop): eliminate GlyphSpinner-driven document-scale style recalcs**. closed without merge
  - maintainer direction: category `merged_via`; implication `superseded`; refs `#91473`

## Fix status

- Merged to main in PR #78266 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-08-21`.
- Subsystem: `apps/desktop`