dumpsys thermalservice

Syntax

dumpsys thermalservice

Examples

• dumpsys thermalservice

  Throttling severity plus every zone's temperature.

• cat /sys/class/thermal/thermal_zone0/temp

  The kernel's own reading, in thousandths of a degree.

Reading the output

IsStatusOverride: false
Thermal Status: 0
Cached temperatures:
  Temperature{mValue=32.5, mType=2, mName=battery, mStatus=0}
HAL Ready: true
Current temperatures from HAL:
  Temperature{mValue=32.5, mType=2, mName=battery, mStatus=0}
Current cooling devices from HAL:
  CoolingDevice{mValue=0, mType=2, mName=thermal-cpufreq-0}

`Thermal Status` is the phone's global throttling severity, 0 to 6. Below it, two sections describe the same zones twice — the live hardware read and the service's cached copy — so merge them by `mName` rather than listing both, or a zone appears twice at slightly different temperatures. `mValue` on a temperature is already degrees Celsius as a float; nothing needs dividing.

Output fields

Version and vendor notes

• Three temperature scales meet here: this dump prints degrees as a float, `dumpsys battery` prints tenths, and `/sys/class/thermal/*/temp` prints thousandths. Applying one scale's conversion to another's number is a factor-of-ten mistake that looks plausible.
• A severity number Android does not define should be shown as unknown, not rounded up to SHUTDOWN.
• Zone names, coverage and even whether the hardware layer answers at all vary by manufacturer.

Related commands

Commands that turn up in the same session as dumpsys thermalservice.

More System services (dumpsys) commands