设置核心速度 – linux

Architecture:
**AMD** Opteron quad-core using 2 CPUs --- Numa system

Processor : x86_64 Operating System: GNU/Linux

我试图在核心的一个核心上将核心频率设置为2.2GHz(即最大值).另一个模具完全关闭.

sudo sh -c "echo 0 > /sys/devices/system/cpu/cpu1/online"
sudo sh -c "echo 0 > /sys/devices/system/cpu/cpu3/online"
sudo sh -c "echo 0 > /sys/devices/system/cpu/cpu5/online"
sudo sh -c "echo 0 > /sys/devices/system/cpu/cpu7/online"

因此,仅打开核心0,2,4,6

我已经尝试将调控器更改为性能,但是当其他任何线程运行时,它会改变其他内核的频率.
例如：

if thread one runs on core 0: then its freq is 2.2GHz

when thread two starts to run on core 2: it gets it as 2.2GHz - Where as I am expecting it to work as 0.8GHz.

是否有一种特殊的方法可以永久地设置一个核心的频率.