这个问题困扰了我几个星期,我似乎无法弄清楚真正的问题可能是什么。
问题是 CPU 频率在负载下急剧下降。我的意思是,例如,当打开网络浏览器时,CPU 频率约为 400 MHz,而当没有负载时,频率会回升。(不是很高,但仍然不是静态行为)。这真的让我发疯。
一些可能有帮助的进一步信息:
联想thinkpad T15:
CPU:英特尔I7-10510U
=> 基本时钟:1.8GHz
=> 升压时钟:4.9GHz
发行版:Ubuntu 20.04.1 LTS
内核:5.4.0-52-generic
? cpupower frequency-info
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: Cannot determine or is not supported.
hardware limits: 400 MHz - 4.90 GHz
available cpufreq governors: performance powersave
current policy: frequency should be within 400 MHz and 4.90 …
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