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
|
#!/usr/bin/env python
# Copyright (c) 2011 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import os
import sys
import time
import pyauto_functional # Must be imported before pyauto
import pyauto
import test_utils
class MemoryTest(pyauto.PyUITest):
"""Tests for memory usage of Chrome-related processes.
These tests are meant to be used manually, not as part of the continuous
test cycle. This is because each test starts up and periodically
measures/records the memory usage of a relevant Chrome process, doing so
repeatedly until the test is manually killed. Currently, this script only
works in Linux and ChromeOS, as it uses a Linux shell command to query the
system for process memory usage info (test_utils.GetMemoryUsageOfProcess()).
The tests in this suite produce the following output files (relative to the
current working directory):
testTabRendererProcessMemoryUsage: 'renderer_process_mem.txt'
testExtensionProcessMemoryUsage: 'extension_process_mem.txt'
"""
# Constants for all tests in this suite.
NUM_SECONDS_BETWEEN_MEASUREMENTS = 10
MEASUREMENT_LOG_MESSAGE_TEMPLATE = '[%s] %.2f MB (pid: %d)'
LOG_TO_OUTPUT_FILE = True
# Constants for testTabRendererProcessMemoryUsage.
RENDERER_PROCESS_URL = 'http://chrome.angrybirds.com'
RENDERER_PROCESS_OUTPUT_FILE = 'renderer_process_mem.txt'
# Constants for testExtensionProcessMemoryUsage.
EXTENSION_LOCATION = os.path.abspath(os.path.join(
pyauto.PyUITest.DataDir(), 'extensions', 'google_talk.crx'))
EXTENSION_PROCESS_NAME = 'Google Talk'
EXTENSION_PROCESS_OUTPUT_FILE = 'extension_process_mem.txt'
def _GetPidOfExtensionProcessByName(self, name):
"""Identifies the process ID of an extension process, given its name.
Args:
name: The string name of an extension process, as returned by the function
GetBrowserInfo().
Returns:
The integer process identifier (PID) for the specified process, or
None if the PID cannot be identified.
"""
info = self.GetBrowserInfo()['extension_views']
pid = [x['pid'] for x in info if x['name'] == '%s' % name]
if pid:
return pid[0]
return None
def _LogMessage(self, log_file, msg):
"""Logs a message to the screen, and to a log file if necessary.
Args:
log_file: The string name of a log file to which to write.
msg: The message to log.
"""
print msg
sys.stdout.flush()
if self.LOG_TO_OUTPUT_FILE:
print >>open(log_file, 'a'), msg
def testTabRendererProcessMemoryUsage(self):
"""Test the memory usage of the renderer process for a tab.
This test periodically queries the system for the current memory usage
of a tab's renderer process. The test will take measurements forever; you
must manually kill the test to terminate it.
"""
if (self.LOG_TO_OUTPUT_FILE and
os.path.exists(self.RENDERER_PROCESS_OUTPUT_FILE)):
os.remove(self.RENDERER_PROCESS_OUTPUT_FILE)
self.NavigateToURL(self.RENDERER_PROCESS_URL)
self._LogMessage(
self.RENDERER_PROCESS_OUTPUT_FILE,
'Memory usage for renderer process of a tab navigated to: "%s"' % (
self.RENDERER_PROCESS_URL))
# A user must manually kill this test to terminate the following loop.
while True:
pid = self.GetBrowserInfo()['windows'][0]['tabs'][0]['renderer_pid']
usage = test_utils.GetMemoryUsageOfProcess(pid)
current_time = time.asctime(time.localtime(time.time()))
self._LogMessage(
self.RENDERER_PROCESS_OUTPUT_FILE,
self.MEASUREMENT_LOG_MESSAGE_TEMPLATE % (current_time, usage, pid))
time.sleep(self.NUM_SECONDS_BETWEEN_MEASUREMENTS)
def testExtensionProcessMemoryUsage(self):
"""Test the memory usage of an extension process.
This test periodically queries the system for the current memory usage
of an extension process. The test will take measurements forever; you
must manually kill the test to terminate it.
"""
if (self.LOG_TO_OUTPUT_FILE and
os.path.exists(self.EXTENSION_PROCESS_OUTPUT_FILE)):
os.remove(self.EXTENSION_PROCESS_OUTPUT_FILE)
self.InstallExtension(self.EXTENSION_LOCATION)
# The PID is 0 until the extension has a chance to start up.
self.WaitUntil(
lambda: self._GetPidOfExtensionProcessByName(
self.EXTENSION_PROCESS_NAME) not in [0, None])
self._LogMessage(
self.EXTENSION_PROCESS_OUTPUT_FILE,
'Memory usage for extension process with name: "%s"' % (
self.EXTENSION_PROCESS_NAME))
# A user must manually kill this test to terminate the following loop.
while True:
pid = self._GetPidOfExtensionProcessByName(self.EXTENSION_PROCESS_NAME)
usage = test_utils.GetMemoryUsageOfProcess(pid)
current_time = time.asctime(time.localtime(time.time()))
self._LogMessage(
self.EXTENSION_PROCESS_OUTPUT_FILE,
self.MEASUREMENT_LOG_MESSAGE_TEMPLATE % (current_time, usage, pid))
time.sleep(self.NUM_SECONDS_BETWEEN_MEASUREMENTS)
if __name__ == '__main__':
pyauto_functional.Main()
|
