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
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
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