本文实例讲述了python统计cpu利用率的方法。分享给大家供大家参考。具体实现方法如下：

#-*-coding=utf-8-*-
import win32pdh
import time
# Counter paths
PROCESSOR_PERCENT = r\'\\Processor(_Total)\\% Processor Time\'
MEMORY_PERCENT = r\'\\Memory\\% Committed Bytes In Use\'
MEMORY_COMMITTED = r\'\\Memory\\Committed Bytes\'
PROCESS_BYTES = lambda x: r\'\\Process(%s)\\Private Bytes\' % x
class Query:
  def __init__(self):
    self.counters = {}
    self.query = None
    self.query = win32pdh.OpenQuery(None, 0)
  def add_counter(self, path):
    if win32pdh.ValidatePath(path) != 0:
      raise Exception(\'Invalid path: %s\' % path)
    counter = win32pdh.AddCounter(self.query, path, 0)
    self.counters[path] = counter
  def remove_counter(self, path):
    win32pdh.RemoveCounter(self.counters[path])
    del self.counters[path]
  def get_values(self):
    values = {}
    win32pdh.CollectQueryData(self.query)
    for path in self.counters:
      status, value = win32pdh.GetFormattedCounterValue(
          self.counters[path], win32pdh.PDH_FMT_LONG)
      values[path] = value
    return values
sysinfo_query = Query()
sysinfo_query.add_counter(PROCESSOR_PERCENT)
sysinfo_query.add_counter(MEMORY_PERCENT)
sysinfo_query.get_values()
def get_sysinfo():
  \"\"\"Return a tuple (mem_usage, cpu_usage).\"\"\"
  info = sysinfo_query.get_values()
  return info[MEMORY_PERCENT], info[PROCESSOR_PERCENT]
listcpu=[]
while True:
  time.sleep(2)
  x,y=get_sysinfo()
  listcpu.append(y)
  if len(listcpu)==10:
    icount=0
    for c in listcpu:
      if c>4:
        icount+=1
    if icount>5:
      print \"在统计的1分钟内，cpu已经有5次大于4%\"
    listcpu=[]
  print y

希望本文所述对大家的Python程序设计有所帮助。