Print CPU and GPU temperatures on macOS.
It works on following macs.
- arm64 (M3 mac)
- arm64 (M2 mac)
- arm64 (M1 mac)
- x86_64
I took the code from hholtmann/smcFanControl/smc-command and modified it to specialize in temperature acquisition. Some of the sensor values were obtained from the exelban/stats project.
$ git clone https://github.com/narugit/smctemp
$ cd smctemp
$ sudo make install
$ smctemp -c$ smctemp -h
Check Temperature by using Apple System Management Control (Smc) tool 0.5.0
Usage:
./smctemp [options]
-c : list CPU temperatures (Celsius)
-g : list GPU temperatures (Celsius)
-h : help
-i : set interval in milliseconds (e.g. -i25, valid range is 20-1000, default: 1000)
-l : list all keys and values
-f : fail-soft mode. Shows last valid value if current sensor read fails.
-v : version
-n : tries to query the temperature sensors for n times (e.g. -n3) until a valid value is returned
$ smctemp -c
64.2
$ smctemp -g
36.2On M2 Macs, sensor values may be unstable as described in the following issue:
For M2 Macs, using the -n, -i, and -f options can help obtain more stable sensor values.
Try tuning these options to get better results.
The recommended settings are -i25 -n180 -f (See also https://github.com/narugit/smctemp/pull/34/files#r1721025001)