# NousResearch/hermes-agent · Desktop serve idle CPU burn from polling loop

## Open now

- Nothing open on GitHub.

A per-session notification poller in desktop \`serve\` calls \`psutil.Process.status()\` roughly twice per second per session, causing CPU usage that scales with the square of open sessions. The cluster covers identifying this idle CPU burn and throttling the bot-delivery poll interval to reduce it.

## TL;DR

- 3 member(s): 0 open issue(s), 1 closed issue(s), 0 open PR(s), 1 merged PR(s), 1 PR(s) closed without merging.
- A fix was merged to main in PR #117063. Verify it addresses your case.
- **Recommended:** read PR #117063 (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-117063`. 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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 `0.67`: 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

- #108005: Desktop \`serve\` burns up to a full core while idle (cost ≈ open sessions²): per-session notification poller sweeps every session lease with \`psutil.Process.status()\` ~2×/s

## Prior & competing PRs

- **#117063: Desktop \`serve\` stops burning a core while idle: the bot-delivery poll runs every 5 s, not 2×/s per session (#108005, salvage #108014)**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`
  - files: `hermes_cli/active_sessions.py`, `tests/hermes_cli/test_active_sessions.py`, `tests/hermes_cli/test_shared_session_attach.py`, `tests/tui_gateway/test_bot_delivery_poll_throttle.py`, `tests/tui_gateway/test_bot_live_owner_delivery.py`, `tui_gateway/session_notifications.py`
- **#108014: fix(tui): throttle idle bot-delivery poll to stop sessions² CPU**. closed without merge
  - maintainer direction: category `merged_via`; implication `superseded`; refs `0caf219aaf`, `#117063`, `#108005`

## Fix status

- Merged to main in PR #117063 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-09-20`.