NousResearch/hermes-agent

Desktop warm session switch CPU spike fix

Cluster 95595. Data as of 2026-10-30 11:57 UTC

Nothing open on GitHub. Fix merged in #101931 on 3 Sep 2026. Check it covers your case.

open issues

open PRs

items grouped

Known?: Yes. 3 related items grouped here, 1 issue already closed.
Fix event: A fix was merged to main in PR #101931. Check it covers your case. No release data is tracked.
Tracker: The maintainers' tracker marks this resolved, deciding PR #101931. That is separate from the fix event.
Still open: Nothing open on GitHub.

Next step: read #101931, then check it covers your case.

Read #101931 Pick up a Lab task

A performance issue where switching to a warm session caused the renderer main thread to run at ~100% CPU for several seconds was identified and addressed. The cluster includes the original bug report and two related fix attempts.

Open issues0

No open issues.

Open PRs0

No open pull requests.

Fixes on record

Merged to main. A stamp counts the issues a fix is linked to.

#101931 fix(desktop): warm session switch no longer pegs the renderer main thread (salvage #95690)

merged to main

files: apps/desktop/src/app/chat/index.tsx, apps/desktop/src/app/chat/right-rail/preview-file.tsx, apps/desktop/src/app/chat/transcript-window.test.ts, apps/desktop/src/app/chat/transcript-window.ts, apps/desktop/src/app/session/hooks/use-session-actions/index.ts, apps/desktop/src/app/session/hooks/use-session-actions/utils.test.ts, apps/desktop/src/app/session/hooks/use-session-actions/utils.ts, apps/desktop/src/components/assistant-ui/thread/index.test.tsx, apps/desktop/src/components/chat/shiki-block.test.tsx, apps/desktop/src/components/chat/shiki-block.tsx, apps/desktop/src/components/chat/shiki-config.ts, apps/desktop/src/components/chat/shiki-highlight-cache.test.ts, apps/desktop/src/components/chat/shiki-highlight-cache.ts, apps/desktop/src/components/chat/shiki-highlighter.tsx

1 PR closed without merging

From the close comments: superseded by another PR 1

#95690 fix(desktop): warm session switch pegs renderer main thread at ~100% CPU · superseded by another PR → #101931

Closed issues · 1

Closed#95595Desktop: switching to a warm session pegs renderer main thread at ~100% CPU for seconds

How this cluster was grouped

Link evidence (structural links throughout): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.
Pairwise link density 1.00: the share of item 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.

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At a glance

Merged PRs: #101931
Closed issues: 1
Attempts: 1 PR closed without merging
Fix link checked: 3 Sep 2026

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