High processor usage of python3, drives processor to high temps

krash · May 13, 2020, 9:37pm

Hey guys,

I have HA installed on ubuntu + docker laptop with an old i3 cpu.

It’s generally running ok, but every now and then i hear the fan going up.
I check the hassio cpu usage and it’s low, 25-30% as usual

If i go to Glances though, i get a 100+% usage from python 3.

Which, i have no idea how to troubleshoot (not a savvy here, just installed using the documentation).
It goes away with a restart or reboot.

Any pointers on how to start troubleshooting?
Thanks in advance.

Edit:
My whole glances page:

bdraco · May 13, 2020, 10:01pm

Please post a py-spy recording.

krash · May 13, 2020, 10:09pm

Excuse my noobness but:

I ssh’d to my laptop’s ubuntu
ran apt-get update , apt-get upgrade
sudo apt install python-pip
pip install py-spy

Then which py-spy do you want to see?
~~And how do i run it, py-spy gives me a command not found~~
~~py-spy --pid 12053 (which is the pid from glances), also returns command not found~~
~~Do i need to enter python3 first?~~

After a quick reply from the developer (kudos for his quick repsonse), i had to use sudo /home/username/.local/bin/py-spy record -o profile.svg --pid 12053 and it works OK.

@bdraco let me know what exactly you want to see.

bdraco · May 13, 2020, 11:11pm

Please post the recording .svg file

krash · May 13, 2020, 11:25pm

uhm, how?

I got this:

bdraco · May 13, 2020, 11:26pm

scp the profile.svg file to local computer and post it.

Or… put it in /config/www/ and then access https://YOURHASS:8123/local/profile.svg

If /config/www doesn’t exist you may need to mkdir it

krash · May 13, 2020, 11:36pm

So first one was during my testing (with high temps):

second one is once i asked HA to reboot and it froze (no idea about temps):

edit: Updated links

bdraco · May 13, 2020, 11:52pm

Both of those recordings look nice and clean. Is it possible you caught it after the problem had already subsided ? It likely takes a bit to heat up the cpu so it might have been over by the time the recording started

krash · May 14, 2020, 12:01am

I had to reboot as it was unresponsive (after i took the second reading)
Next time it fires up, what should i do with py-spy, to get a better picture?

bdraco · May 14, 2020, 12:02am

Try to start the recording as soon as you begin to notice the issue. Maybe setup an alert when the cpu temp starts to rise?

krash · May 14, 2020, 12:03am

Okie, will try and report back.
Thanks for sticking around

andreaconfa · July 7, 2020, 9:11pm

Hi all,
i’m currently having the same issue: HA runs ok for about 13 hour and then become unresponsive and very very slow.
Htop shows 100+ usage on python3 home assistant.

Tried to disable all the plugins and integrations without success. Default_config is not present in my config.yaml

I runned a py-spy and this is the result:

Can anyone help me to read the data on the image?

I’m running hassio in docker on a ubuntu server machine hosted in a vmware esxi server.

Thanks

Joe3 · June 12, 2023, 4:19pm

After installing 2023.6.1 I have high cpu usage also.
Windows 10
VirtualBox

Even after restarts.