For CPU usage at 100% I use
'StabilityTest (ROOT optional)' => classic test
I determine the values every ~1 second.
First 15 minutes (starting the 'classic test' after ~1/2 minute):
The SoC runs at 4 cores at 1.8GHz for ~14 minutes till it reaches 105°C. Unbelievable!
Then it begins to throttle. But not at 4 cores, no no, only at ONE core to 0.816GHz. Yes, the other 3 cores are at 1.8GHZ... and not all the time the one core throttles to 0.816GHz and not even the same one...
The next both 15 minutes:
During this time the SoC sometimes also throttles at TWO cores but not really often. Here an example:
104 816000 103 1800000 104 1800000 104 816000 104 1800000 104 816000 103 1800000 105 1800000 104 816000 103 1800000 104 1800000 105 1800000 103 816000 102 1800000 103 1800000 105 1800000 103 816000 102 1800000 103 1800000 104 1800000 103 816000 102 1200000 103 1800000 103 1800000 104 1800000 103 816000 102 1800000 103 1800000 104 1800000 103 1800000 104 816000 103 1800000 103 816000 103 1800000 103 1800000 104 816000 105 1800000 105 1800000 105 1800000 106 1800000 103 1800000 104 1800000 104 1800000 105 1800000 103 1800000 102 1800000 101 1800000 103 1800000 103 1800000 104 1800000 105 1800000 103 816000
Post Stress Test cool down (the next 15 minutes (stopped the 'classic test' after ~1/2 minute)):
All done at 106K4...
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