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1. #
2. # Copyright (c) 2014, Lambo Wang, All rights reserved.
3. # Use of this source code is governed by a GNU v2 license that can be
4. # found in the LICENSE file.
5. #
6. # Logs:
7. # Transplant to NT system by Lambo Wang, 2012-11-28
8. # Add function of get cpu state and get memory state by Lambo Wang,2012-11-29
9. # first add to Git of OSChina,2014-10-24 by Lambo Wang
10. """
11. Shows real-time NT system statistics.
12. Author: Lambo Wang <lambo.wang@icloud.com>
13. """
15. import sys
16. import os
18. import atexit
19. import time
20. import psutil
22. #print "Welcome,current system is",os.name," 3 seconds late start to get data..."
23. time.sleep(3)
25. line_num = 1
27. #function of Get CPU State
28. def getCPUstate(interval=1):
29. return (" CPU: " + str(psutil.cpu_percent(interval)) + "%")
30. #function of Get Memory
31. def getMemorystate():
32. phymem = psutil.phymem_usage()
33. buffers = getattr(psutil, 'phymem_buffers', lambda: 0)()
34. cached = getattr(psutil, 'cached_phymem', lambda: 0)()
35. used = phymem.total - (phymem.free + buffers + cached)
36. line = " Memory: %5s%% %6s/%s" % (
37. phymem.percent,
38. str(int(used / 1024 / 1024)) + "M",
39. str(int(phymem.total / 1024 / 1024)) + "M"
40. )
41. return line
42. def bytes2human(n):
43. """
44. >>> bytes2human(10000)
45. '9.8 K'
46. >>> bytes2human(100001221)
47. '95.4 M'
48. """
49. symbols = ('K', 'M', 'G', 'T', 'P', 'E', 'Z', 'Y')
50. prefix = {}
51. for i, s in enumerate(symbols):
52. prefix[s] = 1 << (i+1)*10
53. for s in reversed(symbols):
54. if n >= prefix[s]:
55. value = float(n) / prefix[s]
56. return '%.2f %s' % (value, s)
57. return '%.2f B' % (n)
60. def poll(interval):
61. """Retrieve raw stats within an interval window."""
62. tot_before = psutil.network_io_counters()
63. pnic_before = psutil.network_io_counters(pernic=True)
64. # sleep some time
65. time.sleep(interval)
66. tot_after = psutil.network_io_counters()
67. pnic_after = psutil.network_io_counters(pernic=True)
68. # get cpu state
69. cpu_state = getCPUstate(interval)
70. # get memory
71. memory_state = getMemorystate()
72. return (tot_before, tot_after, pnic_before, pnic_after,cpu_state,memory_state)
74. def refresh_window(tot_before, tot_after, pnic_before, pnic_after,cpu_state,memory_state):
75. os.system("cls")
76. """Print stats on screen."""
79. #print current time #cpu state #memory
80. print(time.asctime()+" | "+cpu_state+" | "+memory_state)
82. # totals
83. print(" NetStates:")
84. print("total bytes: sent: %-10s received: %s" % (bytes2human(tot_after.bytes_sent),
85. bytes2human(tot_after.bytes_recv))
86. )
87. print("total packets: sent: %-10s received: %s" % (tot_after.packets_sent,
88. tot_after.packets_recv)
89. )
90. # per-network interface details: let's sort network interfaces so
91. # that the ones which generated more traffic are shown first
92. print("")
93. nic_names = pnic_after.keys()
94. #nic_names.sort(key=lambda x: sum(pnic_after[x]), reverse=True)
95. for name in nic_names:
96. stats_before = pnic_before[name]
97. stats_after = pnic_after[name]
98. templ = "%-15s %15s %15s"
99. print(templ % (name, "TOTAL", "PER-SEC"))
100. print(templ % (
101. "bytes-sent",
102. bytes2human(stats_after.bytes_sent),
103. bytes2human(stats_after.bytes_sent - stats_before.bytes_sent) + '/s',
104. ))
105. print(templ % (
106. "bytes-recv",
107. bytes2human(stats_after.bytes_recv),
108. bytes2human(stats_after.bytes_recv - stats_before.bytes_recv) + '/s',
109. ))
110. print(templ % (
111. "pkts-sent",
112. stats_after.packets_sent,
113. stats_after.packets_sent - stats_before.packets_sent,
114. ))
115. print(templ % (
116. "pkts-recv",
117. stats_after.packets_recv,
118. stats_after.packets_recv - stats_before.packets_recv,
119. ))
120. print("")
122. try:
123. interval = 0
124. while 1:
125. args = poll(interval)
126. refresh_window(*args)
127. interval = 1
128. except (KeyboardInterrupt, SystemExit):
129. pass