-
Notifications
You must be signed in to change notification settings - Fork 104
/
SystemStats.py
651 lines (514 loc) · 19.2 KB
/
SystemStats.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
# -*- coding: utf-8 -*-
#
# Cherokee-admin
#
# Authors:
# Alvaro Lopez Ortega <alvaro@alobbs.com>
#
# Copyright (C) 2001-2014 Alvaro Lopez Ortega
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of version 2 of the GNU General Public
# License as published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301, USA.
#
import os
import popen
import re
import sys
import time
import subprocess
from threading import Thread
#
# Factory function
#
_stats = None
def get_system_stats():
global _stats
if not _stats:
if sys.platform.startswith('linux'):
_stats = System_stats__Linux()
elif sys.platform == 'darwin':
_stats = System_stats__Darwin()
elif sys.platform.startswith ('freebsd'):
_stats = System_stats__FreeBSD()
elif sys.platform.startswith ('openbsd'):
_stats = System_stats__OpenBSD()
elif sys.platform.startswith ('sunos'):
_stats = System_stats__Solaris()
else:
_stats = System_stats()
return _stats
# Base class
class System_stats:
class CPU:
def __init__ (self):
self.user = 0
self.sys = 0
self.idle = 0
self.usage = 0
self.speed = ''
self.num = ''
self.cores = ''
class Memory:
def __init__ (self):
self.total = 0
self.used = 0
self.free = 0
def __init__ (self):
self.cpu = self.CPU()
self.mem = self.Memory()
self.hostname = ''
# MacOS X implementation
class System_stats__Darwin (Thread, System_stats):
CHECK_INTERVAL = 2
def __init__ (self):
Thread.__init__ (self)
System_stats.__init__ (self)
self.daemon = True
# vm_stat (and skip the two first lines)
self.vm_stat_fd = subprocess.Popen ("/usr/bin/vm_stat %d" %(self.CHECK_INTERVAL),
shell=True, stdout = subprocess.PIPE)
line = self.vm_stat_fd.stdout.readline()
self._page_size = int (re.findall("page size of (\d+) bytes", line)[0])
first_line = self.vm_stat_fd.stdout.readline()
if 'comprs' in first_line:
# OSX 10.9, https://developer.apple.com/library/mac/documentation/Darwin/Reference/ManPages/man1/vm_stat.1.html
# free active specul inactive throttle wired prgable faults copy 0fill reactive purged file-backed anonymous cmprssed cmprssor dcomprs comprs pageins pageout swapins swapouts
self.vm_stat_type = 22
elif 'spec' in first_line:
# free active spec inactive wire faults copy 0fill reactive pageins pageout
self.vm_stat_type = 11
else:
# free active inac wire faults copy zerofill reactive pageins pageout
self.vm_stat_type = 10
# I/O stat
self.iostat_fd = subprocess.Popen ("/usr/sbin/iostat -n 0 -w %d" %(self.CHECK_INTERVAL),
shell=True, stdout = subprocess.PIPE)
# Read valid values
self._read_hostname()
self._read_cpu()
self._read_memory()
self._read_profiler()
self.start()
def _read_hostname (self):
ret = popen.popen_sync ("/bin/hostname")
self.hostname = ret['stdout'].split('\n')[0].strip()
def _read_profiler (self):
ret = popen.popen_sync ("/usr/sbin/system_profiler SPHardwareDataType")
# Processor Speed
self.cpu.speed = re.findall (r'Processor Speed: (.*?)\n', ret['stdout'], re.I)[0]
# Number of Processors
tmp = re.findall (r'Number of Processors: (\d+)', ret['stdout'], re.I)
if tmp:
self.cpu.num = tmp[0]
else:
self.cpu.num = re.findall (r'Number of CPUs: (\d+)', ret['stdout'], re.I)[0]
# Number of cores
tmp = re.findall (r'Total Number of Cores: (\d+)', ret['stdout'], re.I)
if tmp:
self.cpu.cores = tmp[0]
else:
self.cpu.cores = 1
def _read_cpu (self):
# Read a new line
line = self.iostat_fd.stdout.readline().rstrip('\n')
# Skip headers
if len(filter (lambda x: x not in " -.0123456789", line)):
return
# Parse
parts = filter (lambda x: x, line.split(' '))
assert len(parts) == 6, parts
self.cpu.user = int(parts[0])
self.cpu.sys = int(parts[1])
self.cpu.idle = int(parts[2])
self.cpu.usage = 100 - self.cpu.idle
def _read_memory (self):
def to_int (x):
if x[-1] == 'K':
return long(x[:-1]) * 1024
return long(x)
line = self.vm_stat_fd.stdout.readline().rstrip('\n')
# Skip headers
if len(filter (lambda x: x not in " -.0123456789K", line)):
return
# Parse
tmp = filter (lambda x: x, line.split(' '))
values = [(to_int(x) * self._page_size) / 1024 for x in tmp]
if self.vm_stat_type == 22:
# free active specul inactive throttle wired prgable faults copy 0fill reactive purged file-backed anonymous cmprssed cmprssor dcomprs comprs pageins pageout swapins swapouts
free, active, spec, inactive, throttle, wired, prgable, faults, copy, fill, reactive, purged, filebacked, anonymous, cmprssed, cmprssor, dcomprs, comprs, pageins, pageout, swapins, swapouts = values
self.mem.total = free + active + spec + inactive + wired
elif self.vm_stat_type == 11:
# free active spec inactive wire faults copy 0fill reactive pageins pageout
free, active, spec, inactive, wired, faults, copy, fill, reactive, pageins, pageout = values
self.mem.total = free + active + spec + inactive + wired
elif self.vm_stat_type == 10:
# free active inac wire faults copy zerofill reactive pageins pageout
free, active, inactive, wired, faults, copy, fill, reactive, pageins, pageout = values
self.mem.total = free + active + inactive + wired
self.mem.free = (free + inactive)
self.mem.used = self.mem.total - self.mem.free
def run (self):
while True:
self._read_cpu()
self._read_memory()
# Linux implementation
class System_stats__Linux (Thread, System_stats):
CHECK_INTERVAL = 2
def __init__ (self):
Thread.__init__ (self)
System_stats.__init__ (self)
self.daemon = True
self.cpu._user_prev = 0
self.cpu._sys_prev = 0
self.cpu._nice_prev = 0
self.cpu._idle_prev = 0
# Read valid values
self._read_hostname()
self._read_cpu()
self._read_memory()
self._read_cpu_info()
self.start()
def _read_hostname (self):
# Read /etc/hostname
if os.access ("/etc/hostname", os.R_OK):
fd = open ("/etc/hostname", 'r')
self.hostname = fd.readline().strip()
fd.close()
return
# Execute /bin/hostname
ret = popen.popen_sync ("/bin/hostname")
self.hostname = ret['stdout'].split('\n')[0].strip()
def _read_cpu_info (self):
fd = open("/proc/cpuinfo", 'r')
tmp = fd.read()
fd.close()
# Cores
cores = re.findall(r'cpu cores.+?(\d+)\n', tmp)
if cores:
self.cpu.cores = cores[0]
# Processors
processors = re.findall (r'processor.+?:.+?(\d+)\n', tmp, re.I)
if processors:
self.cpu.num = str (len(processors))
else:
processors = re.findall (r'Processor[\t ]+:', tmp, re.I)
self.cpu.num = str (len(processors))
# Speed
hz = re.findall (r'model name.+?([\d. ]+GHz)\n', tmp)
if not hz:
hz = re.findall (r'model name.+?([\d. ]+MHz)\n', tmp)
if not hz:
hz = re.findall (r'model name.+?([\d. ]+THz)\n', tmp)
if hz:
self.cpu.speed = hz[0]
else:
mhzs = re.findall (r'cpu MHz.+?([\d.]+)\n', tmp)
if mhzs:
self.cpu.speed = '%s MHz' %(' + '.join(mhzs))
if self.cpu.speed:
return
# Last option: BogoMIPS
bogomips = re.findall (r'BogoMIPS[\t ]+:[\t ]+(\d+)', tmp)
if bogomips:
self.cpu.speed = '%s BogoMIPS' %(bogomips[0])
def _read_cpu (self):
fd = open("/proc/stat", 'r')
fields = fd.readline().split()
fd.close()
user = float(fields[1])
sys = float(fields[2])
nice = float(fields[3])
idle = float(fields[4])
total = ((user - self.cpu._user_prev) + (sys - self.cpu._sys_prev) + (nice - self.cpu._nice_prev) + (idle - self.cpu._idle_prev))
self.cpu.usage = int(100.0 * ((user + sys + nice) - (self.cpu._user_prev + self.cpu._sys_prev + self.cpu._nice_prev)) / (total + 0.001) + 0.5)
if (self.cpu.usage > 100):
self.cpu.usage = 100
self.cpu.idle = 100 - self.cpu.usage
self.cpu._user_prev = user
self.cpu._sys_prev = sys
self.cpu._nice_prev = nice
self.cpu._idle_prev = idle
def _read_memory (self):
fd = open("/proc/meminfo", "r")
lines = fd.readlines()
fd.close()
total = 0
used = 0
cached = 0
buffers = 0
for line in lines:
parts = line.split()
if parts[0] == 'MemTotal:':
total = int(parts[1])
elif parts[0] == 'MemFree:':
used = int(parts[1])
elif parts[0] == 'Cached:':
cached = int(parts[1])
elif parts[0] == 'Buffers:':
buffers = int(parts[1])
self.mem.total = total
self.mem.used = total - (used + cached + buffers)
self.mem.free = total - self.mem.used
def run (self):
while True:
self._read_cpu()
self._read_memory()
time.sleep (self.CHECK_INTERVAL)
# Solaris
class System_stats__Solaris (Thread, System_stats):
CHECK_INTERVAL = 1
def __init__ (self):
Thread.__init__ (self)
System_stats.__init__ (self)
self.daemon = True
# vmstat
self.vmstat_fd = subprocess.Popen ("/usr/bin/vmstat %d" %(self.CHECK_INTERVAL),
shell=True, stdout=subprocess.PIPE, close_fds=True)
# CPUs and Mem
self._read_mem_info()
self._read_cpu_info()
self._read_hostname()
# Initial values
self._read_cpu_and_memory()
self.start()
def _read_mem_info (self):
ret = popen.popen_sync ("/usr/sbin/prtconf")
tmp = re.findall ("Memory size.* (\d+) Megabytes", ret['stdout'], re.I)
if tmp:
self.mem.total = int(tmp[0]) * 1024
def _read_cpu_info (self):
ret = popen.popen_sync ("/usr/sbin/psrinfo -v")
tmp = re.findall ("^Status of.+processor", ret['stdout'], re.I)
self.cpu.num = len(tmp)
tmp = re.findall ("operates at (\d+) MHz", ret['stdout'], re.I)
if tmp:
self.cpu.speed = '%s MHz' %(max([int(x) for x in tmp]))
def _read_hostname (self):
ret = popen.popen_sync ("/bin/hostname")
self.hostname = ret['stdout'].split('\n')[0].strip()
def _read_cpu_and_memory (self):
for tries in range(3):
# Read a new line
line = self.vmstat_fd.stdout.readline().rstrip('\n')
# Skip headers
if len(filter (lambda x: x not in " -.0123456789", line)):
if tries == 2:
return
continue
break
# Parse
fields = filter (lambda x: x, line.split(' '))
# CPU
user = int(fields[-3])
sys = int(fields[-2])
idle = int(fields[-1])
self.cpu.usage = min(user + sys, 100)
self.cpu.idle = idle
# Memory
free = int(fields[4])
self.mem.free = free
self.mem.used = self.mem.total - self.mem.free
def run (self):
while True:
self._read_cpu_and_memory()
time.sleep (self.CHECK_INTERVAL)
# FreeBSD implementation
class System_stats__FreeBSD (Thread, System_stats):
CHECK_INTERVAL = 2
def __init__ (self):
Thread.__init__ (self)
System_stats.__init__ (self)
self.daemon = True
self.vmstat_fd = subprocess.Popen ("/usr/bin/vmstat -H -w%d" %(self.CHECK_INTERVAL),
shell=True, stdout=subprocess.PIPE, close_fds=True )
# Single read values
self._read_info_hostname()
self._read_info_cpu_and_mem()
# Initial status info
self._read_cpu_and_memory()
self.start()
def _read_info_hostname (self):
# First try: uname()
self.hostname = os.uname()[1]
if self.hostname:
return
# Second try: sysctl()
ret = popen.popen_sync ("/sbin/sysctl -n kern.hostname")
self.hostname = ret['stdout'].rstrip()
if self.hostname:
return
# Could not figure it out
self.hostname = "Unknown"
def _read_info_cpu_and_mem (self):
# cpu related
ncpus = 0
vcpus = 0
clock = ''
# mem related
psize = 0
pcount = 0
# Execute sysctl. Depending on the version of FreeBSD some of
# these keys might not exist. Thus, /sbin/sysctl is executed
# with a single key, so in case one were not supported the
# rest would not be ignored. (~ Reliability for efficiency)
#
for key in ("hw.ncpu", "hw.clockrate", "hw.pagesize",
"kern.threads.virtual_cpu", "vm.stats.vm.v_page_count"):
ret = popen.popen_sync ("/sbin/sysctl %s"%(key))
lines = filter (lambda x: x, ret['stdout'].split('\n'))
for line in lines:
parts = line.split()
if parts[0] == 'hw.ncpu:':
ncpus = int(parts[1])
elif parts[0] == 'hw.clockrate:':
clock = parts[1]
elif parts[0] == 'kern.threads.virtual_cpu:':
vcpus = parts[1]
elif parts[0] == 'vm.stats.vm.v_page_count:':
pcount = int(parts[1])
elif parts[0] == 'hw.pagesize:':
psize = int(parts[1])
# Deal with cores
if vcpus:
self.cpu.num = str (int(vcpus) / int(ncpus))
self.cpu.cores = vcpus
else:
self.cpu.num = int (ncpus)
self.cpu.cores = int (ncpus)
# Global speed
self.cpu.speed = '%s MHz' %(clock)
# Physical mem
self.mem.total = (psize * pcount) / 1024
def _read_cpu_and_memory (self):
# Read a new line
line = self.vmstat_fd.stdout.readline().rstrip('\n')
# Skip headers
if len(filter (lambda x: x not in " -.0123456789", line)):
return
# Parse
parts = filter (lambda x: x, line.split(' '))
# Memory
self.mem.free = int(parts[4])
self.mem.used = self.mem.total - self.mem.free
# CPU
self.cpu.idle = int(parts[-1])
self.cpu.usage = 100 - self.cpu.idle
def run (self):
while True:
self._read_cpu_and_memory()
time.sleep (self.CHECK_INTERVAL)
# OpenBSD implementation
class System_stats__OpenBSD (Thread, System_stats):
CHECK_INTERVAL = 2
def __init__ (self):
Thread.__init__ (self)
System_stats.__init__ (self)
self.daemon = True
self.vmstat_fd = subprocess.Popen ("/usr/bin/vmstat -w%d" %(self.CHECK_INTERVAL),
shell=True, stdout = subprocess.PIPE, close_fds=True )
# Read valid values
self._read_hostname()
self._read_cpu()
self._read_memory()
self._read_cpu_and_mem_info()
self.start()
def _read_hostname (self):
# First try: uname()
self.hostname = os.uname()[1]
if self.hostname:
return
# Second try: sysctl()
ret = popen.popen_sync ("/sbin/sysctl -n kern.hostname")
self.hostname = ret['stdout'].rstrip()
if self.hostname:
return
# Could not figure it out
self.hostname = "Unknown"
def _read_cpu_and_mem_info (self):
# Execute sysctl
ret = popen.popen_sync ("/sbin/sysctl hw.ncpufound hw.ncpu hw.cpuspeed hw.physmem")
lines = filter (lambda x: x, ret['stdout'].split('\n'))
# Parse output
# cpu related
ncpus = 0
vcpus = 0
clock = ''
# mem related
pmem = 0
for line in lines:
parts = line.split("=")
if parts[0] == 'hw.ncpufound':
ncpus = int(parts[1])
elif parts[0] == 'hw.ncpu':
vcpus = parts[1]
elif parts[0] == 'hw.cpuspeed':
clock = parts[1]
elif parts[0] == 'hw.physmem':
pmem = parts[1]
# Deal with cores
if vcpus:
self.cpu.num = ncpus
self.cpu.cores = vcpus
else:
self.cpu.num = int (ncpus)
self.cpu.cores = int (ncpus)
# Global speed
self.cpu.speed = '%s MHz' %(clock)
# Physical mem
self.mem.total = int (pmem) / 1024
def _read_cpu (self):
# Read a new line
line = self.vmstat_fd.stdout.readline().rstrip('\n')
# Skip headers
if len(filter (lambda x: x not in " -.0123456789", line)):
return
# Parse
parts = filter (lambda x: x, line.split(' '))
# For OpenBSD there are 19 fields output from vmstat
if not len(parts) == 19:
return
self.cpu.idle = int(parts[18])
self.cpu.usage = 100 - self.cpu.idle
def _read_memory (self):
# Read a new line
line = self.vmstat_fd.stdout.readline().rstrip('\n')
# Skip headers
if len(filter (lambda x: x not in " -.0123456789", line)):
return
# Parse
values = filter (lambda x: x, line.split(' '))
if not len(values) == 19:
return
self.mem.free = int(values[4])
self.mem.used = self.mem.total - self.mem.free
def run (self):
while True:
self._read_cpu()
self._read_memory()
time.sleep (self.CHECK_INTERVAL)
if __name__ == '__main__':
sys_stats = get_system_stats()
print "Hostname:", sys_stats.hostname
print "Speed:", sys_stats.cpu.speed
print "Processors:", sys_stats.cpu.num
print "Cores:", sys_stats.cpu.cores
while True:
print "CPU:",
print 'used', sys_stats.cpu.usage,
print 'idle', sys_stats.cpu.idle
print "MEMORY:",
print 'total', sys_stats.mem.total,
print 'used', sys_stats.mem.used,
print 'free', sys_stats.mem.free
time.sleep(1)