Windows下的电源计划自动控制

代码部分

之前搞了一套E5扔在角落里吃灰，这几天想起来准备当nas用。不过在最高频率下运行功率实在恐怖（140w+），在Windows下限制CPU频率最简单的就是电源计划了，话不多说

import subprocess
import psutil
import time

BALANCE='381b4222-f694-41f0-9685-ff5bb260df2e'
HIGH_PERFORMANCE='8c5e7fda-e8bf-4a96-9a85-a6e23a8c635c'
ENERGY_SAVER='a1841308-3541-4fab-bc81-f71556f20b4a'
def change_power_plan(plan):
    subprocess.run(f'powercfg /S {plan}')
    
def get_power_plan():
    output = subprocess.run("powercfg /GETACTIVESCHEME", shell=True, stdout=subprocess.PIPE).stdout.decode("GBK")
    return output.split(" ")[-3]

while True:
    cpu_percent = psutil.cpu_percent(interval=1)
    current_time = time.localtime().tm_hour
    plan = get_power_plan()
    #print(plan)
    if current_time >= 23 or current_time <= 6:
        if plan != ENERGY_SAVER:
            print(current_time+"：切换到节能模式")
            change_power_plan(ENERGY_SAVER)
    elif cpu_percent > 90:
        if plan != HIGH_PERFORMANCE:
            print(current_time+"：切换到高性能模式")
            change_power_plan(HIGH_PERFORMANCE)
    else:
        if plan != BALANCE:
            print(current_time+"：切换到平衡模式")
            change_power_plan(BALANCE)
    time.sleep(60)

其中，这一部分需要自己获取

1
2
3

BALANCE='381b4222-f694-41f0-9685-ff5bb260df2e'
HIGH_PERFORMANCE='8c5e7fda-e8bf-4a96-9a85-a6e23a8c635c'
ENERGY_SAVER='a1841308-3541-4fab-bc81-f71556f20b4a'

使用powercfg /GETACTIVESCHEME获取电源计划GUID并填入