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
|
# Copyright The OpenTelemetry Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# type: ignore
import io
from typing import Generator, Iterable, List
from unittest import TestCase
from unittest.mock import Mock, patch
from opentelemetry.context import Context
from opentelemetry.metrics import CallbackOptions, Instrument, Observation
from opentelemetry.sdk.metrics import MeterProvider
from opentelemetry.sdk.metrics._internal.measurement import Measurement
# FIXME Test that the instrument methods can be called concurrently safely.
TEST_TIMESTAMP = 1_234_567_890
TEST_CONTEXT = Context()
@patch(
"opentelemetry.sdk.metrics._internal.instrument.time_ns",
Mock(return_value=TEST_TIMESTAMP),
)
class TestCpuTimeIntegration(TestCase):
"""Integration test of scraping CPU time from proc stat with an observable
counter"""
procstat_str = """\
cpu 8549517 4919096 9165935 1430260740 1641349 0 1646147 623279 0 0
cpu0 615029 317746 594601 89126459 129629 0 834346 42137 0 0
cpu1 588232 349185 640492 89156411 124485 0 241004 41862 0 0
intr 4370168813 38 9 0 0 1639 0 0 0 0 0 2865202 0 152 0 0 0 0 0 0 0 0 0 0 0 0 7236812 5966240 4501046 6467792 7289114 6048205 5299600 5178254 4642580 6826812 6880917 6230308 6307699 4699637 6119330 4905094 5644039 4700633 10539029 5365438 6086908 2227906 5094323 9685701 10137610 7739951 7143508 8123281 4968458 5683103 9890878 4466603 0 0 0 8929628 0 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
ctxt 6877594077
btime 1631501040
processes 2557351
procs_running 2
procs_blocked 0
softirq 1644603067 0 166540056 208 309152755 8936439 0 1354908 935642970 13 222975718\n"""
@staticmethod
def create_measurements_expected(
instrument: Instrument,
) -> List[Measurement]:
return [
Measurement(
6150.29,
TEST_TIMESTAMP,
instrument=instrument,
context=TEST_CONTEXT,
attributes={"cpu": "cpu0", "state": "user"},
),
Measurement(
3177.46,
TEST_TIMESTAMP,
instrument=instrument,
context=TEST_CONTEXT,
attributes={"cpu": "cpu0", "state": "nice"},
),
Measurement(
5946.01,
TEST_TIMESTAMP,
instrument=instrument,
context=TEST_CONTEXT,
attributes={"cpu": "cpu0", "state": "system"},
),
Measurement(
891264.59,
TEST_TIMESTAMP,
instrument=instrument,
context=TEST_CONTEXT,
attributes={"cpu": "cpu0", "state": "idle"},
),
Measurement(
1296.29,
TEST_TIMESTAMP,
instrument=instrument,
context=TEST_CONTEXT,
attributes={"cpu": "cpu0", "state": "iowait"},
),
Measurement(
0.0,
TEST_TIMESTAMP,
instrument=instrument,
context=TEST_CONTEXT,
attributes={"cpu": "cpu0", "state": "irq"},
),
Measurement(
8343.46,
TEST_TIMESTAMP,
instrument=instrument,
context=TEST_CONTEXT,
attributes={"cpu": "cpu0", "state": "softirq"},
),
Measurement(
421.37,
TEST_TIMESTAMP,
instrument=instrument,
context=TEST_CONTEXT,
attributes={"cpu": "cpu0", "state": "guest"},
),
Measurement(
0,
TEST_TIMESTAMP,
instrument=instrument,
context=TEST_CONTEXT,
attributes={"cpu": "cpu0", "state": "guest_nice"},
),
Measurement(
5882.32,
TEST_TIMESTAMP,
instrument=instrument,
context=TEST_CONTEXT,
attributes={"cpu": "cpu1", "state": "user"},
),
Measurement(
3491.85,
TEST_TIMESTAMP,
instrument=instrument,
context=TEST_CONTEXT,
attributes={"cpu": "cpu1", "state": "nice"},
),
Measurement(
6404.92,
TEST_TIMESTAMP,
instrument=instrument,
context=TEST_CONTEXT,
attributes={"cpu": "cpu1", "state": "system"},
),
Measurement(
891564.11,
TEST_TIMESTAMP,
instrument=instrument,
context=TEST_CONTEXT,
attributes={"cpu": "cpu1", "state": "idle"},
),
Measurement(
1244.85,
TEST_TIMESTAMP,
instrument=instrument,
context=TEST_CONTEXT,
attributes={"cpu": "cpu1", "state": "iowait"},
),
Measurement(
0,
TEST_TIMESTAMP,
instrument=instrument,
context=TEST_CONTEXT,
attributes={"cpu": "cpu1", "state": "irq"},
),
Measurement(
2410.04,
TEST_TIMESTAMP,
instrument=instrument,
context=TEST_CONTEXT,
attributes={"cpu": "cpu1", "state": "softirq"},
),
Measurement(
418.62,
TEST_TIMESTAMP,
instrument=instrument,
context=TEST_CONTEXT,
attributes={"cpu": "cpu1", "state": "guest"},
),
Measurement(
0,
TEST_TIMESTAMP,
instrument=instrument,
context=TEST_CONTEXT,
attributes={"cpu": "cpu1", "state": "guest_nice"},
),
]
def test_cpu_time_callback(self):
def cpu_time_callback(
options: CallbackOptions,
) -> Iterable[Observation]:
procstat = io.StringIO(self.procstat_str)
procstat.readline() # skip the first line
for line in procstat:
if not line.startswith("cpu"):
break
cpu, *states = line.split()
yield Observation(
int(states[0]) / 100, {"cpu": cpu, "state": "user"}
)
yield Observation(
int(states[1]) / 100, {"cpu": cpu, "state": "nice"}
)
yield Observation(
int(states[2]) / 100, {"cpu": cpu, "state": "system"}
)
yield Observation(
int(states[3]) / 100, {"cpu": cpu, "state": "idle"}
)
yield Observation(
int(states[4]) / 100, {"cpu": cpu, "state": "iowait"}
)
yield Observation(
int(states[5]) / 100, {"cpu": cpu, "state": "irq"}
)
yield Observation(
int(states[6]) / 100, {"cpu": cpu, "state": "softirq"}
)
yield Observation(
int(states[7]) / 100, {"cpu": cpu, "state": "guest"}
)
yield Observation(
int(states[8]) / 100, {"cpu": cpu, "state": "guest_nice"}
)
meter = MeterProvider().get_meter("name")
observable_counter = meter.create_observable_counter(
"system.cpu.time",
callbacks=[cpu_time_callback],
unit="s",
description="CPU time",
)
measurements = list(observable_counter.callback(CallbackOptions()))
self.assertEqual(
measurements, self.create_measurements_expected(observable_counter)
)
def test_cpu_time_generator(self):
def cpu_time_generator() -> Generator[
Iterable[Observation], None, None
]:
options = yield
while True:
self.assertIsInstance(options, CallbackOptions)
measurements = []
procstat = io.StringIO(self.procstat_str)
procstat.readline() # skip the first line
for line in procstat:
if not line.startswith("cpu"):
break
cpu, *states = line.split()
measurements.append(
Observation(
int(states[0]) / 100,
{"cpu": cpu, "state": "user"},
)
)
measurements.append(
Observation(
int(states[1]) / 100,
{"cpu": cpu, "state": "nice"},
)
)
measurements.append(
Observation(
int(states[2]) / 100,
{"cpu": cpu, "state": "system"},
)
)
measurements.append(
Observation(
int(states[3]) / 100,
{"cpu": cpu, "state": "idle"},
)
)
measurements.append(
Observation(
int(states[4]) / 100,
{"cpu": cpu, "state": "iowait"},
)
)
measurements.append(
Observation(
int(states[5]) / 100, {"cpu": cpu, "state": "irq"}
)
)
measurements.append(
Observation(
int(states[6]) / 100,
{"cpu": cpu, "state": "softirq"},
)
)
measurements.append(
Observation(
int(states[7]) / 100,
{"cpu": cpu, "state": "guest"},
)
)
measurements.append(
Observation(
int(states[8]) / 100,
{"cpu": cpu, "state": "guest_nice"},
)
)
options = yield measurements
meter = MeterProvider().get_meter("name")
observable_counter = meter.create_observable_counter(
"system.cpu.time",
callbacks=[cpu_time_generator()],
unit="s",
description="CPU time",
)
measurements = list(observable_counter.callback(CallbackOptions()))
self.assertEqual(
measurements, self.create_measurements_expected(observable_counter)
)
maxDiff = None
|
