So my first time seeing this today. I tired to do a back up to the cloud it failed . Did a hub shutdown and got these messages. Any idea ? I only have 104 devices and maybe 15 apps. How can I tell if I really have to much going on ?
I’m looking at app stats now
Hub load is severe message is not unusual at start up. If it clears in 5-10 minutes normally nothing to worry about.
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What do you mean if it clears , it’s still there
Reboot again, on rare occasion it seems like something gets stuck on reboot.
The you can manually do a cloud backup to clear the warning about the failed backup.
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Hey thanks after the shutdown I successfully did a cloud backup . Everything seems to be running quickly. Not having any issues with delays or anything like that. How can I tell if I’m pushing my hub to hard? I only have like 104 devices and 17 - 20 apps. I have read posts where people are running hundreds of devices and apps . Far as I know hubitat doesn’t have cpu and ram percentage without a 3rd party app.
Try http://<hubIPAdress/hub/advanced/freeOSMemoryLast
You’ll get a readout that looks something like:
Date/time,Free OS,5m CPU avg
01-22 19:40:08,340996,0.16
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Unfortunately it didn’t work tried it two times
lol know idea what that means
First is the Date/Time, the next number is the amount of free memory, and the last number is the CPU Load. Load is a value, normally between 0 and 1, that gives you an indication of the number of process threads that are running or waiting. Given that the hub has 4 cores a value of 4 would say that the number of threads is enough occupy the entire hub. (The value can exceed 4 if you have a threads that are waiting.) If you want a percentage take the load value, divide by 4 and multiply by 100 - thus the 0.16 above would end up being approximately 4.0% load.
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Hey thanks for the input , i appreciate your help this is what im getting (see SC) . So i guess it would be around 8% cpu usage? Does that sound right to you ?
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Yes the 0.33 load is around 8% CPU use for 4 cores.
You are totally fine.
What can really eat up a lot of hub resources is multiple LAN/IP integrations, especially poorly made ones or if you have the polling set way too low.
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I can control the polling correct? That's in the device settings ?
Thanks @thebearmay and @jtp10181 for the explanation looks like it dropped even more . Now im around 6%
At what percentage should i start to be worried? I have no idea how much the c8 can handle , im guessing alot.
If its a device that needs to be polled then yes it is often in the settings for the device or the integration app. Some drivers may not poll at all on their own and you have to setup an app or rule to do it for you. Many devices will report state updates without polling.
If it was consistently over 1.0 load (~25% CPU) I would be concerned.
My C8 hub floats between 8% - 12% most of the time.
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Thanks for explaining this to me . Appreciate it !!
@jtp10181 so what information is the log app stats actually telling me? Is it just showing which apps are processing the most?
If you look at action tiles and the virtual dryer seems they are eating up a lot of resources , any way to make them chill out?
Are those statistics with a C-8 or a C-8 Pro?
