+ Niklas On Wed, Jun 12, 2019 at 03:20:51PM +0100, Biju Das wrote: > This series aims to enhance thermal support by adding cpu-map, > capacity-dmips-mhz,thermal zone to support IPA and also adding > dynamic power coefficients. > > For CPU capacity-dmips-mhz calculation > ------------------------------------- > dhrystone cross complied using the command [1]. > [1] $CC -O3 -DTIME -fno-inline -fno-builtin-printf -Wno-implicit > -march=armv8-a dhry_1.c dhry_2.c -o exe-dry > > dhrystone is executed(with a loop value of 80000000) and took the average > value for 5 iterations > of CA57 and CA53. > > IPA testing > ---------- > > 1)Enable THERMAL_WRITABLE_TRIPS and THERMAL_STATISTICS in kernel > > 2) Check the current temperature(36.5 C) and check the cooling stats on > device0 and device 1 > > Execute the below applications on an ssh session > > 3) while true; do touch pic-`date +%s`.jpg;done & will give almost 0.5 C > jump on each instance > > 4) Executing dhrystone will give 3-4 C jump(runs through the benchmark: > 800000000) > > 5) Now the current temperature is around 46.0 C and there is no change in > cooling stats on device0 and device 1 > > 6) Now change the passive trip temperature to 42 C, At this time CPUFreq > started kicking in trying to limit the temperature, which you can see through > the cooling stats on device0 and device1. You can see the system trying to > maintain the temperature around 42 C. > > 7) Without changing the load, Now change the passive trip temperature to > 100 C, the temperature rises back to 46 C again.
... Thanks, This looks fine to me but I will wait to see if there are other reviews before applying. Reviewed-by: Simon Horman <[email protected]>
