I recently added System Monitor integration in hopes of getting more information out of my system. Things like CPU, memory, usage etc…
When I was going around the integrations and services I found that Home Assistant Supervisor has most of the statistics already at hand.
Is there a reason why I should still use System Monitor over HAS? Performance? Accuracy? I feel like it offers most of what I need and I like to have things cleaned up so, the less items installed the better
The HA supervisor integration does not supply sensors for core processor or memory use, only for add-ons.
The system monitor integration has these and many more, like disk and network use.
Good afternoon, thank you for prompt reply. What are the items in the screenshot below then please? Can’t I just enable them and start using them on my dashboards normally?
Yes you can
Huh. I did not realise those were in there.
They do have some differences:
I was thinking the System monitor was total CPU use while Core was only the HA core processes. But that can’t be right as core > system. Maybe the system is just averaged?
For the long term average it certainly looks like core (from the supervisor integration) is less than the total system metrics:
I forgot I had both.
So yeah using the Supervisor integration will not tell you the whole story. Only what the core processes are using. System monitor will give you the overall picture.
Thank you for your investigation and honesty, appreciated.
In that case I can use both. The ‘overall usage’ using System Monitor, and ‘core usage’ to show how much of that overall usage is being used by Core. I think that makes sense
