On Sat, 2022-12-17 at 10:31 +0000, Maciej Koszanski wrote: > Hi Rui, > > Attached is the output from turbostat. I managed to get the system > down to about 16W when I configured APM/HDD spindown. I am using an > external power meter. The CPU Package power is around 2.44W according to the RAPL energy counter, with 90%+ PC2 and no PC3 and deeper. CPU is not the main problem of your high idle power. You can try with https://github.com/intel/S0ixSelftestTool to see if you can enable deeper Package Cstate or even S0ix on your platform or not, that may save 1W ~ 2W if you succeed. thanks, rui
