I'm testing GPU thermal management on SABRE automotive board. To test it I lowered the trip point 0 as below:
echo 25000 > /sys/devices/virtual/thermal/thermal_zone0/trip_point_0_temp
As a result I saw the log:
System is too hot. GPU3D will work at 3/64 clock.
...but the GPU still seems to work at full speed, graphic benchmarks still works at the same speed.
Am I doing something wrong? I tested it in Android 5.1.1_2.0.0 and 5.1.1_2.1.0 releases.