Increase update interval of system monitor

Archive Month of "What the heck?!" (2020)
1

I would want to see faster (and customizable) update intervals for the integration systemmonitor, particularly the network throughput in/out.

Currently, it updates at 30 second intervals. Personally I would like to set this to 10 second intervals.

2

do you not know about scan interval? All sensors can take this option.

sensor:
  - platform: systemmonitor
    scan_interval: 10
    resources:
      - type: disk_use_percent
        arg: /home
      - type: memory_free
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3

I know about scan_interval but definitely did not know that it applied to all sensors.

Are there other options like this that apply to large scopes but aren’t documented as such?

4

That’s not 100% true, but it should be. The updater component, for example, has a hardcoded update time of 24 hours. The Synology DSM sensor used to have a hard coded 15 minute update time for years (since 0.32 anyway), and only got fixed 3 months ago.

According to the docs, any platform that requires polling should support the scan_interval option, but there are probably some lingering ones out there that still have this hardcoded.

1 Like