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"
因此只是核心, 0,2,4,6 are turned on
我尝试过更改为governor,performance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 …