Python & Ubuntu Get process information

Memo, in fact, is to know the memory condition used by the process.

To get the memory information of the system first:

defMemory_stat ():
" "
Return the memory info
" "
Mem= {}
Stat={}
F=Open ('/proc/meminfo')
Lines=F.readlines ()
for Lineinchlines:
ifLen (line)< 2 : Continue
Name=Line.split (':') [0]
var=Line.split (':')[1].split () [0]
Mem[name]=Long (Var)* 1024.0
stat['memused'] =mem['Memtotal'] -mem['Memfree'] -mem['buffers'] -mem['Cached']
stat['Memtotal'] =mem['Memtotal']
stat['Memfree'] =mem['Memfree']
stat['buffers'] =mem['buffers']
stat['Cached'] =mem['Cached']
returnStat

Because I use the method below to get the process information, you can only know the percentage of memory that the process occupies. Therefore, the total amount of memory must be obtained first.

Next, define a function to get process information.

defProc_stat (PROCID):
Importcommands
Ps_stat=None
Try:
#get memory information for a process
Ps_stat=Commands.getoutput ('PS-FP%s-u' %procid). Split ('\ n')[2].split ()
except:
return {}

ProcInfo= {}

procinfo['PID'] =ProcID

#This calls the memory_stat you just defined to get the total amount of memory,
    #then multiply the percentage of memory that the process occupies, which is the amount of memory used
procinfo['memoryused'] =Memory_stat () ['Memtotal'] *Float (ps_stat[3]) /  -

procinfo['Start'] =ps_stat[8]
procinfo['Startcommand'] =ps_stat[Ten]

returnProcInfo

Then use Ipython, test, start a Python process, assuming the process ID is 2168, then:

fromMachineinfoImportProc_stat

PS=Proc_stat (2168)

Ps

{'memoryused': 3650289.6639999999, #This is done in byte, or you can convert it yourself
 'PID': 2168,
'Start': '21:56',
'Startcommand': 'python'}

The record is complete. over~

Python & Ubuntu Get process information