mymbpfan is a Linux fan speed controller for MacBookPro12,1 that considers both applesmc and coretemp readings.
Most of custom fan controllers use just coretemp, which eventually results in overheating and thermal throttling.
$ git clone https://github.com/r00tman/mymbpfan
$ cd mymbpfan && cargo install --path . --forceThe binary will be placed at ~/.cargo/bin/mymbpfan. After that you can add it to your init system, e.g., as a systemd unit.
Code is tested only with MacBookPro12,1. But it needs just paths to applesmc and to coretemp. So, if you change them accordingly, this project should work well.
Also, since MBP12,1 has just one fan, you might need to update set_manual and set_speed functions, if you need to control two fans.