High cpu usage in CORE

[sd_dracula]

I am getting some crazy high cpu usage and it seems to be due to something on core but no idea how I can pinpoint what it is, nothing blatantly obvious in the usual HA log in the root.
Restarting HA fixes it temporarily:

The core log is underneath but it doesn’t seem to be the full one, I see this a few times there, not sure it’s the cause of the high cpu.

File "/usr/local/lib/python3.13/site-packages/pychromecast/dial.py", line 42, in get_host_from_service
    service_info = zconf.get_service_info("_googlecast._tcp.local.", service.name)
  File "/usr/local/lib/python3.13/site-packages/zeroconf/_core.py", line 289, in get_service_info
    if info.request(self, timeout, question_type):
       ~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "src/zeroconf/_services/info.py", line 800, in zeroconf._services.info.ServiceInfo.request
AssertionError: Zeroconf instance loop must be running, was it already stopped?
[Master bedroom display(192.168.0.164):8009] Unhandled exception in worker thread, attempting reconnect
Traceback (most recent call last):
  File "/usr/local/lib/python3.13/site-packages/pychromecast/socket_client.py", line 548, in run
    if self._run_once() == 1:
       ~~~~~~~~~~~~~~^^
  File "/usr/local/lib/python3.13/site-packages/pychromecast/socket_client.py", line 568, in _run_once
    if not self._check_connection():
           ~~~~~~~~~~~~~~~~~~~~~~^^
  File "/usr/local/lib/python3.13/site-packages/pychromecast/socket_client.py", line 690, in _check_connection
    self.initialize_connection()
    ~~~~~~~~~~~~~~~~~~~~~~~~~~^^
  File "/usr/local/lib/python3.13/site-packages/pychromecast/socket_client.py", line 310, in initialize_connection
    host, port, service_info = get_host_from_service(
                               ~~~~~~~~~~~~~~~~~~~~~^
        service, self.zconf
        ^^^^^^^^^^^^^^^^^^^
    )

Any idea how I can troubleshoot this issue, it seems to be getting worse

[Sir_Goodenough ((SG) WhatAreWeFixing.Today)]

You may have a sim-behavibg integration.
See if you can find it with this.

2024.5+: Tracking down instability issues caused by integrations

If you find your system unstable because of a misbehaving integration, there are a few methods for identifying and recovering from the problem. It is recommended to use Home Assistant’s built-in debug mode in conjunction with asyncio debug mode. Using Home Assistant's built-in debug mode in 2024.5.x or later (preferred) Enabling asyncio debug mode at run time (preferred) Enabling asyncio debug mode before startup (fallback plan) Manually enabling safe mode (last resort) Integration blocki…

[sd_dracula]

Thanks I will go through that post looks very handy.
I did also notice this in my logs, wonder if related:

2025-03-20 16:36:05.135 WARNING (MainThread) [homeassistant.util.loop] Detected blocking call to open with args ('/config/custom_components/solarman/inverter_definitions/deye_hybrid.yaml',) inside the event loop by custom integration 'solarman' at custom_components/solarman/solarman.py, line 31: with open(self.path + self.lookup_file) as f: (offender: /config/custom_components/solarman/solarman.py, line 31: with open(self.path + self.lookup_file) as f:), please create a bug report at https://github.com/StephanJoubert/home_assistant_solarman/issues
For developers, please see https://developers.home-assistant.io/docs/asyncio_blocking_operations/#open
Traceback (most recent call last):
  File "<frozen runpy>", line 198, in _run_module_as_main
  File "<frozen runpy>", line 88, in _run_code
  File "/usr/src/homeassistant/homeassistant/__main__.py", line 227, in <module>
    sys.exit(main())
  File "/usr/src/homeassistant/homeassistant/__main__.py", line 213, in main
    exit_code = runner.run(runtime_conf)
  File "/usr/src/homeassistant/homeassistant/runner.py", line 154, in run
    return loop.run_until_complete(setup_and_run_hass(runtime_config))
  File "/usr/local/lib/python3.13/asyncio/base_events.py", line 712, in run_until_complete
    self.run_forever()
  File "/usr/local/lib/python3.13/asyncio/base_events.py", line 683, in run_forever
    self._run_once()
  File "/usr/local/lib/python3.13/asyncio/base_events.py", line 2040, in _run_once
    handle._run()
  File "/usr/local/lib/python3.13/asyncio/events.py", line 89, in _run
    self._context.run(self._callback, *self._args)
  File "/usr/src/homeassistant/homeassistant/config_entries.py", line 898, in async_setup_locked
    await self.async_setup(hass, integration=integration)
  File "/usr/src/homeassistant/homeassistant/config_entries.py", line 664, in async_setup
    await self.__async_setup_with_context(hass, integration)
  File "/usr/src/homeassistant/homeassistant/config_entries.py", line 753, in __async_setup_with_context
    result = await component.async_setup_entry(hass, self)
  File "/config/custom_components/solarman/__init__.py", line 18, in async_setup_entry
    await hass.config_entries.async_forward_entry_setups(entry, PLATFORMS)
  File "/usr/src/homeassistant/homeassistant/config_entries.py", line 2573, in async_forward_entry_setups
    await self._async_forward_entry_setups_locked(entry, platforms)
  File "/usr/src/homeassistant/homeassistant/config_entries.py", line 2584, in _async_forward_entry_setups_locked
    await asyncio.gather(
  File "/usr/src/homeassistant/homeassistant/config_entries.py", line 2586, in <genexpr>
    create_eager_task(
  File "/usr/src/homeassistant/homeassistant/util/async_.py", line 45, in create_eager_task
    return Task(coro, loop=loop, name=name, eager_start=True)
  File "/usr/src/homeassistant/homeassistant/config_entries.py", line 2665, in _async_forward_entry_setup
    await entry.async_setup(self.hass, integration=integration)
  File "/usr/src/homeassistant/homeassistant/config_entries.py", line 664, in async_setup
    await self.__async_setup_with_context(hass, integration)
  File "/usr/src/homeassistant/homeassistant/config_entries.py", line 753, in __async_setup_with_context
    result = await component.async_setup_entry(hass, self)
  File "/usr/src/homeassistant/homeassistant/components/sensor/__init__.py", line 96, in async_setup_entry
    return await hass.data[DATA_COMPONENT].async_setup_entry(entry)
  File "/usr/src/homeassistant/homeassistant/helpers/entity_component.py", line 193, in async_setup_entry
    return await self._platforms[key].async_setup_entry(config_entry)
  File "/usr/src/homeassistant/homeassistant/helpers/entity_platform.py", line 349, in async_setup_entry
    return await self._async_setup_platform(async_create_setup_awaitable)
  File "/usr/src/homeassistant/homeassistant/helpers/entity_platform.py", line 379, in _async_setup_platform
    awaitable = create_eager_task(awaitable, loop=hass.loop)
  File "/usr/src/homeassistant/homeassistant/util/async_.py", line 45, in create_eager_task
    return Task(coro, loop=loop, name=name, eager_start=True)
  File "/config/custom_components/solarman/sensor.py", line 89, in async_setup_entry
    _do_setup_platform(hass, entry.options, async_add_entities)
  File "/config/custom_components/solarman/sensor.py", line 54, in _do_setup_platform
    inverter = Inverter(path, inverter_sn, inverter_host, inverter_port, inverter_mb_slaveid, lookup_file)
  File "/config/custom_components/solarman/solarman.py", line 31, in __init__
    with open(self.path + self.lookup_file) as f:

[davidrapan (David Rapaň)]

No it’s not. You are just using old (not adapted to recent HA) version of the mentioned integration.