akovia Posted November 27, 2018 Share Posted November 27, 2018 I'm curious how the CPU temp value is calculated on the MOTD screen when ssh'ing in. Mine is showing 56°C, but if I run the commands: # cat /sys/devices/virtual/thermal/thermal_zone*/temp 45000 44000 48000 44000 41000 # armbianmonitor -m Stop monitoring using [ctrl]-[c] Time big.LITTLE load %cpu %sys %usr %nice %io %irq CPU C.St. 12:16:28: 600/ 600MHz 0.17 1% 0% 0% 0% 0% 0% 45.0°C 0/3 Thanks Link to comment Share on other sites More sharing options...
Igor Posted November 27, 2018 Share Posted November 27, 2018 /etc/update-mot.d/ Sources: https://github.com/armbian/build/tree/master/packages/bsp/common/etc/update-motd.d Link to comment Share on other sites More sharing options...
akovia Posted November 27, 2018 Author Share Posted November 27, 2018 38 minutes ago, Igor said: /etc/update-mot.d/ Sources: https://github.com/armbian/build/tree/master/packages/bsp/common/etc/update-motd.d Thanks @Igor I guess it's over my head. It looks like it's reading from /etc/armbianmonitor/datasources/soctemp which is the same value I was getting from armbianmonitor. Seems I can just ignore the motd value safely. Link to comment Share on other sites More sharing options...
rooted Posted November 28, 2018 Share Posted November 28, 2018 When you are logging into SSH it spins the CPU up for a second which generates heat, after logging in the CPU usage spike goes down as does the temperature. Link to comment Share on other sites More sharing options...
akovia Posted November 28, 2018 Author Share Posted November 28, 2018 7 hours ago, rooted said: When you are logging into SSH it spins the CPU up for a second which generates heat, after logging in the CPU usage spike goes down as does the temperature. Sounds reasonable but don't think that's it. If you run these commands back to back after being logged in, you can see the difference. root@odroidxu4:~# cat /etc/armbianmonitor/datasources/soctemp 44000 root@odroidxu4:~# cat /var/run/motd.dynamic ___ _ _ _ __ ___ _ _ _ / _ \ __| |_ __ ___ (_) __| | \ \/ / | | | || | | | | |/ _` | '__/ _ \| |/ _` | \ /| | | | || |_ | |_| | (_| | | | (_) | | (_| | / \| |_| |__ _| \___/ \__,_|_| \___/|_|\__,_| /_/\_\\___/ |_| Welcome to ARMBIAN 5.60 stable Debian GNU/Linux 9 (stretch) 4.14.69-odroidxu4 System load: 0.01 0.02 0.00 Up time: 12:34 hours Memory usage: 7 % of 1996MB IP: CPU temp: 52°C Link to comment Share on other sites More sharing options...
rooted Posted November 28, 2018 Share Posted November 28, 2018 That is interesting. Link to comment Share on other sites More sharing options...
Recommended Posts