最近天气炎热,我家里的 Linux 服务器 CPU 占用率似乎随着温度好像变高了很多,不知道是什么原因
$ sensors
coretemp-isa-0000
Adapter: ISA adapter
Package id 0:  +63.0 C  (high = +80.0 C, crit = +100.0 C)
Core 0:        +47.0 C  (high = +80.0 C, crit = +100.0 C)
Core 4:        +50.0 C  (high = +80.0 C, crit = +100.0 C)
Core 8:        +54.0 C  (high = +80.0 C, crit = +100.0 C)
Core 12:       +56.0 C  (high = +80.0 C, crit = +100.0 C)
Core 16:       +63.0 C  (high = +80.0 C, crit = +100.0 C)
Core 20:       +61.0 C  (high = +80.0 C, crit = +100.0 C)
Core 24:       +52.0 C  (high = +80.0 C, crit = +100.0 C)
Core 28:       +55.0 C  (high = +80.0 C, crit = +100.0 C)
Core 36:       +47.0 C  (high = +80.0 C, crit = +100.0 C)
Core 37:       +47.0 C  (high = +80.0 C, crit = +100.0 C)
Core 38:       +47.0 C  (high = +80.0 C, crit = +100.0 C)
Core 39:       +47.0 C  (high = +80.0 C, crit = +100.0 C)
|  |      1opengps      2023-07-07 15:43:19 +08:00  1 温度过高确实会降频,但我并不知道降频是否会提高占用率 | 
|  |      4mineralsalt      2023-07-07 16:15:40 +08:00 温度高到降频, 会极大影响速度 | 
|      5renfei      2023-07-07 16:20:17 +08:00  2 我的观察,我的 macbook pro ,如果周围气温炎热,确实容易高温,一旦高温就会出现一个叫 kernel_task 的进程开始大量占用 CPU ,让 CPU 冷静下来 | 
|  |      6dw2693734d OP @renfei 我的 macbook 也是,老是有个 kernel_task 来占用我的 cpu😂 | 
|  |      7ysc3839      2023-07-07 17:22:31 +08:00 via Android  3 | 
|  |      9veike      2023-07-07 17:42:34 +08:00 10 年期前的笔记本,不开空调用一会就直接黑屏关机了。 | 
|  |      10iugo      2023-07-07 17:52:16 +08:00  1 @renfei 你的观察在 https://support.apple.com/en-us/HT207359 知识库中得到了验证. |