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sudo apt-get install procps

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sudo apt-get install sysstat

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ps aux

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sudo service servicename stop

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cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor

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echo performance | sudo tee /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor

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free -m

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sudo vim /etc/sysctl.conf

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vm.swappiness = 5

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sudo sysctl -p

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import os

def get_cpu_usage():
    result = os.popen("sar -u 1 1 | grep Average")
    lines = result.readlines()
    if len(lines) > 0:
        tokens = lines[0].split()
        if len(tokens) > 0:
            return float(tokens[-1])
    return 0

def optimize_cpu_usage(threshold):
    cpu_usage = get_cpu_usage()
    if cpu_usage > threshold:
        # °´Ðè×èÖ¹²»ÐëÒªµÄЧÀͺÍÀú³Ì
        os.system("sudo service servicename stop")
        # Çл»µ½performanceµ÷ÀíÕ½ÂÔ
        os.system("echo performance | sudo tee /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor")

# ÉèÖÃCPUʹÓÃÂʵÄãÐֵΪ80%
threshold = 80

# Ò»Á¬¾ÙÐÐÐÔÄÜÓÅ»¯
while True:
    optimize_cpu_usage(threshold)

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