Python使用psutil模块监控Linux系统信息

最近在学习psutil模块，就写一个监控Linux系统信息的脚本来试试看…

1、创建监控Linux系统信息脚本

[root@kkk myPython]# cat monSystem.py 
#!/usr/bin/python3

import psutil

"""Monitor Memory"""
def monMem():
	memInfo = psutil.virtual_memory()
#print(memInfo)
	totalMem = memInfo.total
	freeMem = memInfo.free
	avaMem = memInfo.available
	bufMem = memInfo.buffers
	cachedMem = memInfo.cached
	
	print("Memory Info(Byte):")
	print("\tTotalMem: \t" + str(totalMem))
	print("\tFreeMem: \t" + str(freeMem))
	print("\tAvaMem: \t" + str(avaMem))
	print("\tBufMem: \t" + str(bufMem))
	print("\tCachedMem: \t" + str(cachedMem))
 
#监控CPU
def monCpu():
	physical_cpu_count = psutil.cpu_count(logical=False)
	logical_cpu_count = psutil.cpu_count()
	use_cpu_percent = psutil.cpu_percent(interval=1)

	print("Cpu Info: ")
	print("\tPhysical_cpu_count: \t" + str(physical_cpu_count))
	print("\tLogical_cpu_count: \t" + str(logical_cpu_count))
	print("\tUse_cpu_percent: \t" + str(use_cpu_percent))

#监控磁盘
def monDisk():
	#select partiton of disk
	diskInfo = psutil.disk_partitions()
	
	mountPoint = []
	for disk in diskInfo:
		mountPoint.append(disk.mountpoint)
	#print(mountPoint)
	
	for mp in mountPoint:
		print(mp + "'s usage info is: ")
		print("\t Total: \t" + str(psutil.disk_usage(mp).total))
		print("\t Used: \t\t" + str(psutil.disk_usage(mp).used))
		print("\t Free: \t\t" + str(psutil.disk_usage(mp).free))
		print("\t Percent: \t" + str(psutil.disk_usage(mp).percent) + "%")
	
if __name__ == '__main__':
	monMem()
	monCpu()
	monDisk()

#print("The total Mem is: " + str(round(memInfo.total/1024/1024,2)) + 'M')

2、查看监控结果

[root@kkk myPython]# python3 monSystem.py 
Memory Info(Byte):
	TotalMem: 	3966767104
	FreeMem: 	2371059712
	AvaMem: 	3372048384
	BufMem: 	206479360
	CachedMem: 	1098854400
Cpu Info: 
	Physical_cpu_count: 	1
	Logical_cpu_count: 	1
	Use_cpu_percent: 	2.0
/'s usage info is: 
	 Total: 	52710309888
	 Used: 		5861019648
	 Free: 		44148158464
	 Percent: 	11.7%
/media/cdrom's usage info is: 
	 Total: 	4058890240
	 Used: 		4058890240
	 Free: 		0
	 Percent: 	100.0%
/boot's usage info is: 
	 Total: 	1023303680
	 Used: 		155193344
	 Free: 		797646848
	 Percent: 	16.3%
/u01's usage info is: 
	 Total: 	126692687872
	 Used: 		14498979840
	 Free: 		105734479872
	 Percent: 	12.1%
/home's usage info is: 
	 Total: 	10434662400
	 Used: 		43388928
	 Free: 		9837625344
	 Percent: 	0.4%
/var's usage info is: 
	 Total: 	10434662400
	 Used: 		450154496
	 Free: 		9430859776
	 Percent: 	4.6%
/soft's usage info is: 
	 Total: 	52710309888
	 Used: 		1368326144
	 Free: 		48640851968
	 Percent: 	2.7%

这个脚本弄完后还可以做后续处理，比如将监控的信息使用jinja2模块渲染成html的格式定时发送到自己的邮箱…

参考博客：https://blog.csdn.net/qq_38684504/article/details/87956015