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231 lines
7.8 KiB
Python
Executable File
231 lines
7.8 KiB
Python
Executable File
#!c:/Python24/python.exe
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#
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# ***** BEGIN LICENSE BLOCK *****
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# Version: MPL 1.1/GPL 2.0/LGPL 2.1
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#
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# The contents of this file are subject to the Mozilla Public License Version
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# 1.1 (the "License"); you may not use this file except in compliance with
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# the License. You may obtain a copy of the License at
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# http://www.mozilla.org/MPL/
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#
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# Software distributed under the License is distributed on an "AS IS" basis,
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# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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# for the specific language governing rights and limitations under the
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# License.
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#
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# The Original Code is standalone Firefox Windows performance test.
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#
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# The Initial Developer of the Original Code is Google Inc.
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# Portions created by the Initial Developer are Copyright (C) 2006
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# the Initial Developer. All Rights Reserved.
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#
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# Contributor(s):
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# Annie Sullivan <annie.sullivan@gmail.com> (original author)
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#
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# Alternatively, the contents of this file may be used under the terms of
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# either the GNU General Public License Version 2 or later (the "GPL"), or
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# the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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# in which case the provisions of the GPL or the LGPL are applicable instead
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# of those above. If you wish to allow use of your version of this file only
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# under the terms of either the GPL or the LGPL, and not to allow others to
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# use your version of this file under the terms of the MPL, indicate your
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# decision by deleting the provisions above and replace them with the notice
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# and other provisions required by the GPL or the LGPL. If you do not delete
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# the provisions above, a recipient may use your version of this file under
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# the terms of any one of the MPL, the GPL or the LGPL.
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#
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# ***** END LICENSE BLOCK *****
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"""A set of functions to run the Tp test.
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The Tp test measures page load times in Firefox. It does this with a
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JavaScript script that opens a new window and cycles through page loads
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from the local disk, timing each one. The script dumps the sum of the
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mean times to open each page, and the standard deviation, to standard out.
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We can also measure performance attributes during the test. See
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http://technet2.microsoft.com/WindowsServer/en/Library/86b5d116-6fb3-427b-af8c-9077162125fe1033.mspx?mfr=true
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for a description of what can be measured.
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"""
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__author__ = 'annie.sullivan@gmail.com (Annie Sullivan)'
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import os
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import re
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import shutil
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import time
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import win32pdh
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import win32pdhutil
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import ffprocess
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import ffprofile
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import paths
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# Regular expression to get stats for page load test (Tp)
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TP_REGEX = re.compile('__start_page_load_report(.*)__end_page_load_report',
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re.DOTALL | re.MULTILINE)
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def AddCounter(counter_name):
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"""Adds a pdh query and counter of the given name to Firefox.
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Args: counter_name: The name of the counter to add, i.e. "% Processor Time"
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Returns:
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(query handle, counter handle)
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"""
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path = win32pdh.MakeCounterPath( (None,
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'process',
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'firefox',
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None,
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-1,
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counter_name) )
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hq = win32pdh.OpenQuery()
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try:
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hc = win32pdh.AddCounter(hq, path)
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except:
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win32pdh.CloseQuery(hq)
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return hq, hc
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def CleanupCounter(hq, hc):
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"""Cleans up a counter after it is no longer needed.
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Args:
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hq: handle to the query for the counter
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hc: handle to the counter
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"""
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try:
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win32pdh.RemoveCounter(hc)
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win32pdh.CloseQuery(hq)
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except:
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# Sometimes we get unexpected win32 errors. Not much can be done.
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pass
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def GetCounterValue(hq, hc):
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"""Returns the current value of the given counter
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Args:
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hq: Handle of the query for the counter
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hc: Handle of the counter
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Returns:
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The current value of the counter
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"""
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try:
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win32pdh.CollectQueryData(hq)
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type, val = win32pdh.GetFormattedCounterValue(hc, win32pdh.PDH_FMT_LONG)
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return val
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except:
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return None
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def RunPltTests(source_profile_dir,
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profile_configs,
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num_cycles,
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counters,
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resolution):
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"""Runs the Page Load tests with profiles created from the given
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base diectory and list of configuations.
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Args:
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source_profile_dir: Full path to base directory to copy profile from.
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profile_configs: Array of configuration options for each profile.
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These are of the format:
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[{prefname:prevalue,prefname2:prefvalue2},
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{extensionguid:path_to_extension}],[{prefname...
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num_cycles: Number of times to cycle through all the urls on each test.
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counters: Array of counters ("% Processor Time", "Working Set", etc)
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See http://technet2.microsoft.com/WindowsServer/en/Library/86b5d116-6fb3-427b-af8c-9077162125fe1033.mspx?mfr=true
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for a list of available counters and their descriptions.
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resolution: Time (in seconds) between collecting counters
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Returns:
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A tuple containing:
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An array of plt results for each run. For example:
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["mean: 150.30\nstdd:34.2", "mean 170.33\nstdd:22.4"]
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An array of counter data from each run. For example:
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[{"counter1": [1, 2, 3], "counter2":[4,5,6]},
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{"counter1":[1,3,5], "counter2":[2,4,6]}]
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"""
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counter_data = []
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plt_results = []
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for config in profile_configs:
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# Create the new profile
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profile_dir = ffprofile.CreateTempProfileDir(source_profile_dir,
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config[0],
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config[1])
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# Run Firefox once with new profile so initializing it doesn't cause
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# a performance hit, and the second Firefox that gets created is properly
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# terminated.
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ffprofile.InitializeNewProfile(config[2], profile_dir)
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ffprocess.SyncAndSleep()
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# Run the plt test for this profile
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timeout = 300
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total_time = 0
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output = ''
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url = paths.TP_URL + '?cycles=' + str(num_cycles)
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command_line = ffprocess.GenerateFirefoxCommandLine(config[2], profile_dir, url)
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handle = os.popen(command_line)
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# PDH might need to be "refreshed" if it has been queried while
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# Firefox is closed.
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win32pdh.EnumObjects(None, None, 0, 1)
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# Initialize counts
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counts = {}
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counter_handles = {}
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for counter in counters:
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counts[counter] = []
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counter_handles[counter] = AddCounter(counter)
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while total_time < timeout:
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# Sleep for [resolution] seconds
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time.sleep(resolution)
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total_time += resolution
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# Get the output from all the possible counters
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for count_type in counters:
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val = GetCounterValue(counter_handles[count_type][0],
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counter_handles[count_type][1])
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if (val):
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# Sometimes the first sample can be None, or PLT test will have
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# closed Firefox by this point. Only count real values.
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counts[count_type].append(val)
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# Check to see if page load times were outputted
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(bytes, current_output) = ffprocess.NonBlockingReadProcessOutput(handle)
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output += current_output
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match = TP_REGEX.search(output)
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if match:
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plt_results.append(match.group(1))
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break;
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# Cleanup counters
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for counter in counters:
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CleanupCounter(counter_handles[counter][0], counter_handles[counter][1])
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# Firefox should have exited cleanly, but close it if it doesn't
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# after 2 seconds.
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time.sleep(2)
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ffprocess.TerminateAllProcesses("firefox")
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ffprocess.SyncAndSleep()
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# Delete the temp profile directory Make it writeable first,
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# because every once in a while Firefox seems to drop a read-only
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# file into it.
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ffprofile.MakeDirectoryContentsWritable(profile_dir)
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shutil.rmtree(profile_dir)
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counter_data.append(counts)
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return (plt_results, counter_data)
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