memoria-info.py

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#!/usr/bin/python
import subprocess
import re
# Obter informações sobre processo
ps = subprocess.Popen(['ps', '-caxm', '-orss,comm'], stdout=subprocess.PIPE).communicate()[0]
vm = subprocess.Popen(['vm_stat'], stdout=subprocess.PIPE).communicate()[0]
# Interação com os processos
processLines = ps.split('\n')
sep = re.compile('[\s]+')
rssTotal = 0 # kB
for row in range(1,len(processLines)):
 rowText = processLines[row].strip()
 rowElements = sep.split(rowText)
 try:
 rss = float(rowElements[0]) * 1024
 except:
 rss = 0 # ignore...
 rssTotal += rss
# processo vm_stat
vmLines = vm.split('\n')
sep = re.compile(':[\s]+')
vmStats = {}
for row in range(1,len(vmLines)-2):
 rowText = vmLines[row].strip()
 rowElements = sep.split(rowText)
 vmStats[(rowElements[0])] = int(rowElements[1].strip('\.')) * 4096
print 'Memória Wired:\t\t%d MB' % ( vmStats["Pages wired down"]/1024/1024 )
print 'Memória Ativa:\t\t%d MB' % ( vmStats["Pages active"]/1024/1024 )
print 'Memória inativa:\t%d MB' % ( vmStats["Pages inactive"]/1024/1024 )
print 'Memória livre:\t\t%d MB' % ( vmStats["Pages free"]/1024/1024 )
print 'Total (ps):\t%.3f MB' % ( rssTotal/1024/1024 )