https://bugzilla.kernel.org/show_bug.cgi?id=62861 --- Comment #5 from Kertesz Laszlo <laszlo.kertesz@xxxxxxxxx> --- I reverted commit 4076a65544e2de310cbf4eaadb13ee15bbfaaf4f. Reverting this commit changed back the CPU voltage handling as it was before. It seems that the CPU power management is best for APUs in its latest form - if dpm is not used or with 4076a65544e2de310cbf4eaadb13ee15bbfaaf4f reverted and dpm activated, the CPU is scaled with voltages between 0.9 and 1.34, using all frequencies, but if all cores are used, after a while (sometimes after a few seconds) the CPU becomes throttled (no obvious reasons) and the effective frequencies go down to around ~3 GHz or even lower, in some cases even ~ 2GHz or lower (temps go as high as 60C withut dpm and ~56C with dpm). With the new code we have ~0.65 - 1.22 volts, the frequencies are maxed out at 3.168GHz (rarely 3.2) coupled with a lower max temperature(max 51C, mostly 49), but the frequencies are stable, i can compile a whole kernel with 4 threads and there is absolutely no throttling. Only thing is missing its the highest voltage level (1.34) which enables turbo mode. -- You are receiving this mail because: You are the assignee for the bug. -- To unsubscribe from this list: send the line "unsubscribe cpufreq" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
