python实现监控linux性能及进程消耗性能的方法
本文以实例形式实现了python监控linux性能以及进程消耗性能的方法，具体实现代码如下：
#-*-coding:utf-8-*-
"""
CreatedonTueJun1010:20:132014
@author:lifeix
"""
fromcollectionsimportOrderedDict
importtime
importos
defcpuinfo():
lines=open('/proc/stat').readlines()
forlineinlines:
ln=line.split()
ifln[0].startswith('cpu'):
returnln;
return[]
W=cpuinfo()
one_cpuTotal=long(W[1])+long(W[2])+long(W[3])+long(W[4])+long(W[5])+long(W[6])+long(W[7])
one_cpuused=long(W[1])+long(W[2])+long(W[3])
defCPUinfo():
'''Returntheinformationin/proc/CPUinfo
asadictionaryinthefollowingformat:
CPU_info['proc0']={...}
CPU_info['proc1']={...}
'''
CPUinfo=OrderedDict()
procinfo=OrderedDict()
nprocs=0
f=open('/proc/cpuinfo')
forlineinf.readlines():
ifnotline.strip():
#endofoneprocessor
CPUinfo['proc%s'%nprocs]=procinfo
nprocs=nprocs+1
#Reset
procinfo=OrderedDict()
else:
iflen(line.split(':'))==2:
procinfo[line.split(':')[0].strip()]=line.split(':')[1].strip()
else:
procinfo[line.split(':')[0].strip()]=''
returnCPUinfo
defmeminfo():
'''Returntheinformationin/proc/meminfo
asadictionary'''
meminfo=OrderedDict()
f=open('/proc/meminfo')
forlineinf.readlines():
meminfo[line.split(':')[0]]=line.split(':')[1].strip()
returnmeminfo
f=open("sysinfo.log",'a')
deflogSysInfo(cpu,mem,line):
f.write('\ncpu:%s-------mem:%s------mongocpu:%s'%(cpu,mem,line))
f.flush();
defprocess_info():
#获取drm_processes的进程号
textlist=os.popen('top-bcn1-p12023').readlines()
line=''
fortintextlist:
ift.find('12023'):
line=t
line=line.split('')
#此处的值按照自己的需求去取
returnline[15]
if__name__=='__main__':
CPUinfo=CPUinfo()
forprocessorinCPUinfo.keys():
print(CPUinfo[processor]['modelname'])
f.write("cpu:%s"%CPUinfo[processor]['modelname'])
#meminfo=meminfo()
#print('Totalmemory:{0}'.format(meminfo['MemTotal']))
try:
whileTrue:
line=process_info()
time.sleep(2)
mi=meminfo()
print('Freememory:{0}'.format(mi['MemFree']))
W=cpuinfo()
two_cpuTotal=long(W[1])+long(W[2])+long(W[3])+long(W[4])+long(W[5])+long(W[6])+long(W[7])
two_cpuused=long(W[1])+long(W[2])+long(W[3])
cpuused=float(two_cpuused-one_cpuused)/(two_cpuTotal-one_cpuTotal)
print('%.2f%%'%(cpuused*100))
printline
cpu='%.2f%%'%(cpuused*100)
logSysInfo(cpu,format(mi['MemFree']),line)
exceptKeyboardInterrupt,e:
print("\ncpumonitexited")
f.close()
f.close()