The value for bapm can be provided as a module parameter (see here). Keep in mind that CPU power is also shared with GPU, so you'll almost never get the highest frequency available if GPU is also in use. You should get a kernel panic boost working now. To enable it, open this file, find this line: pi->enable_bapm = false Ĭhange false to true, then compile and install new kernel. It's located in drivers/gpu/drm/radeon/trinity_dpm.c and it's (at the time of writing) enabled only for MSI boards, because of stability issues. turbostatĮDIT: It seems like Trinity series processors have it's own BAPM switch in source. More tests (ran with ondemand scheduler and 3 instances of ffmpeg decoding 1920x1080 H.264 video in background): turbostat]$ sudo cpupower monitorģ| 99,18| 0,82| 1808|| 0,00| 0,00| turbostat]$ sudo. Here is output of cpupower frequency-info, notice Active: no under boost state support: analyzing CPU 0:ĬPUs which run at the same hardware frequency: 0ĬPUs which need to have their frequency coordinated by software: 0Īvailable frequency steps: 1.90 GHz, 1.80 GHz, 1.70 GHz, 1.60 GHz, 1.40 GHzĪvailable cpufreq governors: conservative, ondemand, userspace, powersave, performanceĬurrent policy: frequency should be within 1.90 GHz and 1.90 GHz. Everything works on Windows, however, on Linux CPU frequency can't get past 1.9 GHz (checked with cpufreq-aperf). I'm using Ubuntu 14.04 (3.13.0-24-generic kernel) on AMD A8-4500m based laptop, and I've recently noticed, that AMD Turbo Core is not working at all.

How to enable turbo boost on ryzen 7