Hi Everyone, I wanted to report this error to see if I can get some help in resolving it. I reviewed all other similar messages on this forum, and have tried a few of the suggestions without success.
Over the last 2 months my C8 hub (Platform Version 2.3.7.140) has been reporting "Severe hub CPU load detected" daily. If I reboot my hub through settings, the light will stay blue until I pull the power cable and plug it back in. After the hub is back online the Sever CPU load message comes back after 12 hours. If I reboot the hub, within that 12 hours, before the Severe CPU load message is given, the hub will reboot fine without the need to pull the power cable.
If I had to pinpoint when this issue started, it would be after the update to Platform Version 2.3.6.144. I was previously on PV 2.3.5.152 without issues. I have added no new devices or apps/automations since long before the update to 2.3.6.144. After discovering the issue I have been updating to the latest PV, when available to see if the next update would fix this issue, but so far it has not helped.
I only have the Zwave radio turned on, Zigbee and Matter are disabled.
I have tried a few things to try and figure out if an app or Device has been the source of the issue, but none of these steps have helped resolve the error.
- Fixed 2 broken rules in Rule Machine 5.1
- Backed up and restored the hub through the settings and rebooted.
- Deactivated Apps that had a high busy % (Primarily apps that monitor power usage for notifications)
- Deactivated Devices that report power usage
- Removed all devices from Maker API
- Logged out and back in on my mobile devices. I tried this because the Mobile App Manager was at some point running at over 30% usage in the App Stats
I have not yet tried a soft restart through the diagnostics tool, or tried to restore to a previous version. I wanted to see if I can figure out what the root cause may be, before reverting back to a previous version.
Are there any other steps I should take to try and resolve this issue, before doing a soft reset and/or reverting back to a previous platform version?
/hub/advanced/freeOSMemoryHistory
Date/time,Free OS,5m CPU avg
12-25 21:07:31,693896,1.37
12-25 21:12:31,665548,0.66
12-25 21:17:31,661240,0.14
12-25 21:22:31,658500,0.19
12-25 21:27:31,654448,0.11
12-25 21:32:31,653300,0.05
12-25 21:37:31,649748,0.16
...
12-26 03:12:46,627468,0.12
12-26 03:17:46,628152,0.04
12-26 03:22:47,627840,0.12
12-26 03:27:47,628220,0.15
12-26 03:32:47,627932,0.12
12-26 03:37:47,627028,0.08
...
12-26 07:57:57,620884,0.12
12-26 08:02:57,621032,0.1
12-26 08:07:59,624928,0.04
12-26 08:12:59,623140,0.07
12-26 08:17:59,623496,0.66
12-26 08:22:59,623476,3.86
12-26 08:27:59,620348,4.1
12-26 08:33:01,619580,4.12
12-26 08:38:01,618088,4.12
12-26 08:43:02,618404,4
12-26 08:48:03,618044,4.04
12-26 08:53:04,616632,4.01
12-26 08:58:04,617252,4.04
12-26 09:03:05,616284,4.02
12-26 09:08:09,621508,4.05
12-26 09:13:10,619552,4.11
12-26 09:18:11,619708,4.12
12-26 09:23:11,620176,4.03
