intel_pstateドライバにはいくつかの問題があります。
質問1）ターボを無効にすることはできません。以下はBIOSで無効になります。
root@think:~# cat /sys/devices/system/cpu/intel_pstate/no_turbo
1
問題2）最大周波数を制限できません。 「max_perf_pct」は33に設定され、「min_perf_pct」は同じである。 CPU はすべての設定を完全に無視します。
Socket [0] - [physical cores=2, logical cores=4, max online cores ever=2]
TURBO DISABLED on 2 Cores, Hyper Threading ON
Max Frequency without considering Turbo 2893.00 MHz (99.76 x [29])
Max TURBO Multiplier (if Enabled) with 1/2/3/4 Cores is 36x/34x/34x/34x
Real Current Frequency 3227.37 MHz [99.76 x 32.35] (Max of below)
Core [core-id] :Actual Freq (Mult.) C0% Halt(C1)% C3 % C6 %
Core 1 [0]: 3227.37 (32.35x) 44.4 39.2 0 1
Core 2 [2]: 3189.89 (31.98x) 43.3 44.3 1 1
「2コアでTURBOを無効にする」…そうではありませんか？
analyzing CPU 0:
driver: intel_pstate
CPUs which run at the same hardware frequency: 0
CPUs which need to have their frequency coordinated by software: 0
maximum transition latency: 0.97 ms.
hardware limits: 1.20 GHz - 3.60 GHz
available cpufreq governors: performance, powersave
current policy: frequency should be within 1.20 GHz and 3.60 GHz.
The governor "powersave" may decide which speed to use
within this range.
current CPU frequency is 1.20 GHz (asserted by call to hardware).
ありがとう