I’m running HAOS as a VM inside Proxmox, running on a Dell micro pc with 8GB RAM and an i5-8500T CPU. I noticed, while still running OS9.5, that updating to the latest core 2023.4.5 caused my CPU to spike to 100% and temps to rapidly climb to 60-65 degrees. Before the Core update, I ran a recorder purge and repack which I’ve started doing, as recent Core updates seem to take an age to complete, and running this before each update seems to help a little.
During this state, the frontend became unresponsive. I reverted to my backup from before the Core update and all was well again. I figured it was maybe my recorder database sorting itself out and doing migrations (aroung 700MB size), so I gave the Core update another try and left it running for an hour. The CPU usage eventually came down gradually to around 20% and temps to 55 degrees - still way higher than they should be. Each VM or host reboot would see high usage again for several minutes before settling to these levels again.
Proxmox processes only showed the main CPU usage coming from the KVM process, and no warnings or errors in the HA logs.
I tried disabling integrations and addons, until they were all disabled, and nothing seemed to affect the CPU usage, even after a vm restart.
Then HAOS v10 was released, so I thought I’d see of updating to that had any impact on the issue.
After several reboots, and just letting it run, the CPU has finally come back down to normal levels - idling around 2 or 3%, with the odd spike that lasts a minute or two, however idle temps are still higher than when running the previously Core version, and sit around 48 degrees, possibly due to the seemingly random processor usage spikes, and so it never gets a chance to get any lower. It used to idle around 38 degrees prior to the Core update.
On OS v10 my Bluetooth seems to all be running fine, using an external USB dongle passed through to the VM, running BTHome for several BLE devices. None of my integrations or addons appear to be broken, like some of the above reports, I’m just left with a higher CPU temp, but feel this is the latest core rather than OS.