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
|
# -*- coding: utf-8 -*-
# Copyright 2016 OpenMarket Ltd
#
# 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.
from twisted.internet import defer
from synapse.util.logcontext import LoggingContext
import synapse.metrics
from functools import wraps
import logging
logger = logging.getLogger(__name__)
metrics = synapse.metrics.get_metrics_for(__name__)
block_timer = metrics.register_distribution(
"block_timer",
labels=["block_name"]
)
block_ru_utime = metrics.register_distribution(
"block_ru_utime", labels=["block_name"]
)
block_ru_stime = metrics.register_distribution(
"block_ru_stime", labels=["block_name"]
)
block_db_txn_count = metrics.register_distribution(
"block_db_txn_count", labels=["block_name"]
)
block_db_txn_duration = metrics.register_distribution(
"block_db_txn_duration", labels=["block_name"]
)
def measure_func(name):
def wrapper(func):
@wraps(func)
@defer.inlineCallbacks
def measured_func(self, *args, **kwargs):
with Measure(self.clock, name):
r = yield func(self, *args, **kwargs)
defer.returnValue(r)
return measured_func
return wrapper
class Measure(object):
__slots__ = [
"clock", "name", "start_context", "start", "new_context", "ru_utime",
"ru_stime", "db_txn_count", "db_txn_duration", "created_context"
]
def __init__(self, clock, name):
self.clock = clock
self.name = name
self.start_context = None
self.start = None
self.created_context = False
def __enter__(self):
self.start = self.clock.time_msec()
self.start_context = LoggingContext.current_context()
if not self.start_context:
self.start_context = LoggingContext("Measure")
self.start_context.__enter__()
self.created_context = True
self.ru_utime, self.ru_stime = self.start_context.get_resource_usage()
self.db_txn_count = self.start_context.db_txn_count
self.db_txn_duration = self.start_context.db_txn_duration
def __exit__(self, exc_type, exc_val, exc_tb):
if isinstance(exc_type, Exception) or not self.start_context:
return
duration = self.clock.time_msec() - self.start
block_timer.inc_by(duration, self.name)
context = LoggingContext.current_context()
if context != self.start_context:
logger.warn(
"Context has unexpectedly changed from '%s' to '%s'. (%r)",
self.start_context, context, self.name
)
return
if not context:
logger.warn("Expected context. (%r)", self.name)
return
ru_utime, ru_stime = context.get_resource_usage()
block_ru_utime.inc_by(ru_utime - self.ru_utime, self.name)
block_ru_stime.inc_by(ru_stime - self.ru_stime, self.name)
block_db_txn_count.inc_by(
context.db_txn_count - self.db_txn_count, self.name
)
block_db_txn_duration.inc_by(
context.db_txn_duration - self.db_txn_duration, self.name
)
if self.created_context:
self.start_context.__exit__(exc_type, exc_val, exc_tb)
|
