mirror of
https://github.com/classilla/tenfourfox.git
synced 2024-09-11 02:56:06 +00:00
143 lines
5.1 KiB
Python
143 lines
5.1 KiB
Python
# This Source Code Form is subject to the terms of the Mozilla Public
|
|
# License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
|
|
|
|
from __future__ import print_function
|
|
|
|
from distutils.version import StrictVersion
|
|
|
|
from mach.decorators import (
|
|
Command,
|
|
CommandArgument,
|
|
CommandProvider,
|
|
)
|
|
from mozbuild.base import (
|
|
MachCommandBase,
|
|
MachCommandConditions as conditions,
|
|
)
|
|
|
|
|
|
def is_osx_10_10_or_greater(cls):
|
|
import platform
|
|
release = platform.mac_ver()[0]
|
|
return release and StrictVersion(release) >= StrictVersion('10.10')
|
|
|
|
|
|
@CommandProvider
|
|
class MachCommands(MachCommandBase):
|
|
'''
|
|
Get system power consumption and related measurements.
|
|
'''
|
|
def __init__(self, context):
|
|
MachCommandBase.__init__(self, context)
|
|
|
|
@Command('power', category='misc',
|
|
conditions=[is_osx_10_10_or_greater],
|
|
description='Get system power consumption and related measurements for '
|
|
'all running browsers. Available only on Mac OS X 10.10 and above. '
|
|
'Requires root access.')
|
|
@CommandArgument('-i', '--interval', type=int, default=30000,
|
|
help='The sample period, measured in milliseconds. Defaults to 30000.')
|
|
def power(self, interval):
|
|
import os
|
|
import re
|
|
import subprocess
|
|
|
|
rapl = os.path.join(self.topobjdir, 'dist', 'bin', 'rapl')
|
|
|
|
interval = str(interval)
|
|
|
|
# Run a trivial command with |sudo| to gain temporary root privileges
|
|
# before |rapl| and |powermetrics| are called. This ensures that |rapl|
|
|
# doesn't start measuring while |powermetrics| is waiting for the root
|
|
# password to be entered.
|
|
try:
|
|
subprocess.check_call(['sudo', 'true'])
|
|
except:
|
|
print('\nsudo failed; aborting')
|
|
return 1
|
|
|
|
# This runs rapl in the background because nothing in this script
|
|
# depends on the output. This is good because we want |rapl| and
|
|
# |powermetrics| to run at the same time.
|
|
subprocess.Popen([rapl, '-n', '1', '-i', interval])
|
|
|
|
lines = subprocess.check_output(['sudo', 'powermetrics',
|
|
'--samplers', 'tasks',
|
|
'--show-process-coalition',
|
|
'--show-process-gpu',
|
|
'-n', '1',
|
|
'-i', interval])
|
|
|
|
# When run with --show-process-coalition, |powermetrics| groups outputs
|
|
# into process coalitions, each of which has a leader.
|
|
#
|
|
# For example, when Firefox runs from the dock, its coalition looks
|
|
# like this:
|
|
#
|
|
# org.mozilla.firefox
|
|
# firefox
|
|
# plugin-container
|
|
#
|
|
# When Safari runs from the dock:
|
|
#
|
|
# com.apple.Safari
|
|
# Safari
|
|
# com.apple.WebKit.Networking
|
|
# com.apple.WebKit.WebContent
|
|
# com.apple.WebKit.WebContent
|
|
#
|
|
# When Chrome runs from the dock:
|
|
#
|
|
# com.google.Chrome
|
|
# Google Chrome
|
|
# Google Chrome Helper
|
|
# Google Chrome Helper
|
|
#
|
|
# In these cases, we want to print the whole coalition.
|
|
#
|
|
# Also, when you run any of them from the command line, things are the
|
|
# same except that the leader is com.apple.Terminal and there may be
|
|
# non-browser processes in the coalition, e.g.:
|
|
#
|
|
# com.apple.Terminal
|
|
# firefox
|
|
# plugin-container
|
|
# <and possibly other, non-browser processes>
|
|
#
|
|
# Also, the WindowServer and kernel coalitions and processes are often
|
|
# relevant.
|
|
#
|
|
# We want to print all these but omit uninteresting coalitions. We
|
|
# could do this by properly parsing powermetrics output, but it's
|
|
# simpler and more robust to just grep for a handful of identifying
|
|
# strings.
|
|
|
|
print() # blank line between |rapl| output and |powermetrics| output
|
|
|
|
for line in lines.splitlines():
|
|
# Search for the following things.
|
|
#
|
|
# - '^Name' is for the columns headings line.
|
|
#
|
|
# - 'firefox' and 'plugin-container' are for Firefox
|
|
#
|
|
# - 'Safari\b' and 'WebKit' are for Safari. The '\b' excludes
|
|
# SafariCloudHistoryPush, which is a process that always
|
|
# runs, even when Safari isn't open.
|
|
#
|
|
# - 'Chrome' is for Chrome.
|
|
#
|
|
# - 'Terminal' is for the terminal. If no browser is running from
|
|
# within the terminal, it will show up unnecessarily. This is a
|
|
# minor disadvantage of this very simple parsing strategy.
|
|
#
|
|
# - 'WindowServer' is for the WindowServer.
|
|
#
|
|
# - 'kernel' is for the kernel.
|
|
#
|
|
if re.search(r'(^Name|firefox|plugin-container|Safari\b|WebKit|Chrome|Terminal|WindowServer|kernel)', line):
|
|
print(line)
|
|
|
|
return 0
|