我有一台配备 i7 处理器和 Ubuntu 14.10 的戴尔笔记本电脑。当我在 BIOS 中禁用 SpeedStep 时，我的计算机速度非常快，但风扇运行非常频繁，并且电池电量很快耗尽。
当我激活 SpeedStep 时，Ubuntu 会变得很慢。我曾尝试将调速器切换到性能，但没有任何效果。
这是 cpufreq-info 为所有 7 个 CPU 显示的内容：
analyzing CPU 7:
driver: intel_pstate
CPUs which run at the same hardware frequency: 7
CPUs which need to have their frequency coordinated by software: 7
maximum transition latency: 0.97 ms.
hardware limits: 800 MHz - 3.70 GHz
available cpufreq governors: performance, powersave
current policy: frequency should be within 3.70 GHz and 3.70 GHz.
The governor "performance" may decide which …