树莓派系列（第一篇）:用python代码查看树莓派的温度、cpu使用率、内存占用情况 |
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树莓派系列（第一篇）:用python代码查看树莓派的温度、cpu使用率、内存占用情况
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夏天快到了，用树莓派3b挂载硬盘做pt下载机，温度可能会比较高，写个python脚本查看下树莓派的温度、cpu利用率、内存利用率，方便在合适的时候插上树莓派自带的小风扇。 树莓派系统版本 Stretch python代码查询树莓派使用情况代码如下 import os # Return CPU temperature as a character string def getCPUtemperature(): res = os.popen('vcgencmd measure_temp').readline() return(res.replace("temp=","").replace("'C\n","")) # Return RAM information (unit=kb) in a list # Index 0: total RAM # Index 1: used RAM # Index 2: free RAM def getRAMinfo(): p = os.popen('free') i = 0 while 1: i = i + 1 line = p.readline() if i==2: return(line.split()[1:4]) # Return % of CPU used by user as a character string def getCPUuse(): return(str(os.popen("top -n1 | awk '/Cpu\(s\):/ {print $2}'").readline().strip())) # Return information about disk space as a list (unit included) # Index 0: total disk space # Index 1: used disk space # Index 2: remaining disk space # Index 3: percentage of disk used def getDiskSpace(): p = os.popen("df -h /") i = 0 while 1: i = i +1 line = p.readline() if i==2: return(line.split()[1:5]) # CPU informatiom CPU_temp = getCPUtemperature() CPU_usage = getCPUuse() # RAM information # Output is in kb, here I convert it in Mb for readability RAM_stats = getRAMinfo() RAM_total = round(int(RAM_stats[0]) / 1000,1) RAM_used = round(int(RAM_stats[1]) / 1000,1) RAM_free = round(int(RAM_stats[2]) / 1000,1) # Disk information DISK_stats = getDiskSpace() DISK_total = DISK_stats[0] DISK_used = DISK_stats[1] DISK_perc = DISK_stats[3] if __name__ == '__main__': print('------------') print('CPU Temperature = '+CPU_temp) print('CPU Use = '+CPU_usage) print('------------') print('RAM Total = '+str(RAM_total)+' MB') print('RAM Used = '+str(RAM_used)+' MB') print('RAM Free = '+str(RAM_free)+' MB') print('------------') print('DISK Total Space = '+str(DISK_total)+'B') print('DISK Used Space = '+str(DISK_used)+'B') print('DISK Used Percentage = '+str(DISK_perc)) 登录树莓派，创建写入python文件 vi get.py复制--粘贴代码 保存 使用树莓派自带的python3环境运行文件，查询信息
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