注：需要安裝psutil庫

源代碼如下：

#!/usr/bin/env python

#

# $Id: iotop.py 1160 2011-10-14 18:50:36Z g.rodola@gmail.com $

#

# Copyright (c) 2009, Jay Loden, Giampaolo Rodola'. All rights reserved.

# Use of this source code is governed by a BSD-style license that can be

# found in the LICENSE file.

# Transplant to NT system by hui.wang, 2012-11-28

# Add function of get cpu state and get memory state by hui.wang,2012-11-29

"""

Shows real-time network statistics.

Author: Giampaolo Rodola'

"""

import sys

import os

import atexit

import time

import psutil

print "Welcome,current system is",os.name," 3 seconds late start to get data..."

time.sleep(3)

line_num = 1

def print_line(str):

print str

#function of Get CPU State

def getCPUstate(interval=1):

return (" CPU: " + str(psutil.cpu_percent(interval)) + "%")

#function of Get Memory

def getMemorystate():

phymem = psutil.phymem_usage()

buffers = getattr(psutil, 'phymem_buffers', lambda: 0)()

cached = getattr(psutil, 'cached_phymem', lambda: 0)()

used = phymem.total - (phymem.free + buffers + cached)

line = " Memory: %5s%% %6s/%s" % (

phymem.percent,

str(int(used / 1024 / 1024)) + "M",

str(int(phymem.total / 1024 / 1024)) + "M"

)

return line

def bytes2human(n):

"""

>>> bytes2human(10000)

'9.8 K'

>>> bytes2human(100001221)

'95.4 M'

"""

symbols = ('K', 'M', 'G', 'T', 'P', 'E', 'Z', 'Y')

prefix = {}

for i, s in enumerate(symbols):

prefix[s] = 1 << (i+1)*10

for s in reversed(symbols):

if n >= prefix[s]:

value = float(n) / prefix[s]

return '%.2f %s' % (value, s)

return '%.2f B' % (n)

def poll(interval):

"""Retrieve raw stats within an interval window."""

tot_before = psutil.network_io_counters()

pnic_before = psutil.network_io_counters(pernic=True)

# sleep some time

time.sleep(interval)

tot_after = psutil.network_io_counters()

pnic_after = psutil.network_io_counters(pernic=True)

# get cpu state

cpu_state = getCPUstate(interval)

# get memory

memory_state = getMemorystate()

return (tot_before, tot_after, pnic_before, pnic_after,cpu_state,memory_state)

def refresh_window(tot_before, tot_after, pnic_before, pnic_after,cpu_state,memory_state):

os.system("cls")

"""Print stats on screen."""

#print current time #cpu state #memory

print_line(time.asctime()+" | "+cpu_state+" | "+memory_state)

# totals

print_line(" NetStates:")

print_line("total bytes: ? ? ? ? ? sent: %-10s ? received: %s" \

% (bytes2human(tot_after.bytes_sent),

bytes2human(tot_after.bytes_recv))

)

print_line("total packets: ? ? ? ? sent: %-10s ? received: %s" \

% (tot_after.packets_sent, tot_after.packets_recv)

)

# per-network interface details: let's sort network interfaces so

# that the ones which generated more traffic are shown first

print_line("")

nic_names = pnic_after.keys()

nic_names.sort(key=lambda x: sum(pnic_after[x]), reverse=True)

for name in nic_names:

stats_before = pnic_before[name]

stats_after = pnic_after[name]

templ = "%-15s %15s %15s"

print_line(templ % (name, "TOTAL", "PER-SEC"))

print_line(templ % (

"bytes-sent",

bytes2human(stats_after.bytes_sent),

bytes2human(stats_after.bytes_sent - stats_before.bytes_sent) + '/s',

))

print_line(templ % (

"bytes-recv",

bytes2human(stats_after.bytes_recv),

bytes2human(stats_after.bytes_recv - stats_before.bytes_recv) + '/s',

))

print_line(templ % (

"pkts-sent",

stats_after.packets_sent,

stats_after.packets_sent - stats_before.packets_sent,

))

print_line(templ % (

"pkts-recv",

stats_after.packets_recv,

stats_after.packets_recv - stats_before.packets_recv,

))

print_line("")

try:

interval = 0

while 1:

args = poll(interval)

refresh_window(*args)

interval = 1

except (KeyboardInterrupt, SystemExit):

pass

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