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TMU values are floating a lot, when cpu is under load

Question asked by john-s-84 on Apr 11, 2018

While capturing greyscale images, we can meassure a temperature value around 35.0 to 42.0 °C. The values changes a little, but are continous. When doing some calculations on the image and producing a high cpu load >80%, the tmu values start floating between 25.0 to 120.0 °C.

 

PID   PPID   USER   STAT   VSZ      %VSZ   %CPU   COMMAND

227   224      root       S         132m   145%    83%      ./myApp

 

I can confirm, that the tmu-driver works correct, cause this does not happen in idle meassurement.

 

Can you reproduce these behaviour?

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