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results.py
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results.py
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#!/usr/bin/env 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/.
"""
objects and methods for parsing and serializing Talos results
see https://wiki.mozilla.org/Buildbot/Talos/DataFormat
"""
from __future__ import absolute_import, print_function
import csv
import json
import os
import re
from talos import output, utils, filter
class TalosResults(object):
"""Container class for Talos results"""
def __init__(self):
self.results = []
self.extra_options = []
def add(self, test_results):
self.results.append(test_results)
def add_extra_option(self, extra_option):
self.extra_options.append(extra_option)
def output(self, output_formats):
"""
output all results to appropriate URLs
- output_formats: a dict mapping formats to a list of URLs
"""
try:
for key, urls in output_formats.items():
_output = output.Output(self, Results)
results = _output()
for url in urls:
_output.output(results, url)
except utils.TalosError as e:
# print to results.out
try:
_output = output.GraphserverOutput(self)
results = _output()
_output.output(
'file://%s' % os.path.join(os.getcwd(), 'results.out'),
results
)
except Exception:
pass
print('\nFAIL: %s' % str(e).replace('\n', '\nRETURN:'))
raise e
class TestResults(object):
"""container object for all test results across cycles"""
def __init__(self, test_config, global_counters=None, framework=None):
self.results = []
self.test_config = test_config
self.format = None
self.global_counters = global_counters or {}
self.all_counter_results = []
self.framework = framework
self.using_xperf = False
def name(self):
return self.test_config['name']
def mainthread(self):
return self.test_config['mainthread']
def add(self, results, counter_results=None):
"""
accumulate one cycle of results
- results : TalosResults instance or path to browser log
- counter_results : counters accumulated for this cycle
"""
# convert to a results class via parsing the browser log
format_pagename = True
if not self.test_config['format_pagename']:
format_pagename = False
browserLog = BrowserLogResults(
results,
format_pagename=format_pagename,
counter_results=counter_results,
global_counters=self.global_counters
)
results = browserLog.results()
self.using_xperf = browserLog.using_xperf
# ensure the results format matches previous results
if self.results:
if not results.format == self.results[0].format:
raise utils.TalosError("Conflicting formats for results")
else:
self.format = results.format
self.results.append(results)
if counter_results:
self.all_counter_results.append(counter_results)
class Results(object):
def filter(self, testname, filters):
"""
filter the results set;
applies each of the filters in order to the results data
filters should be callables that take a list
the last filter should return a scalar (float or int)
returns a list of [[data, page], ...]
"""
retval = []
for result in self.results:
page = result['page']
data = result['runs']
remaining_filters = []
# ignore* functions return a filtered set of data
for f in filters:
if f.func.__name__.startswith('ignore'):
data = f.apply(data)
else:
remaining_filters.append(f)
# apply the summarization filters
for f in remaining_filters:
if f.func.__name__ == "v8_subtest":
# for v8_subtest we need to page for reference data
data = filter.v8_subtest(data, page)
else:
data = f.apply(data)
summary = {
'filtered': data, # backward compatibility with perfherder
'value': data
}
retval.append([summary, page])
return retval
def raw_values(self):
return [(result['page'], result['runs']) for result in self.results]
def values(self, testname, filters):
"""return filtered (value, page) for each value"""
return [[val, page] for val, page in self.filter(testname, filters)
if val['filtered'] > -1]
class TsResults(Results):
"""
results for Ts tests
"""
format = 'tsformat'
def __init__(self, string, counter_results=None, format_pagename=True):
self.counter_results = counter_results
string = string.strip()
lines = string.splitlines()
# gather the data
self.results = []
index = 0
# Case where one test iteration may report multiple event values i.e. ts_paint
if string.startswith('{'):
jsonResult = json.loads(string)
result = {'runs': {}}
result['index'] = index
result['page'] = 'NULL'
for event_label in jsonResult:
result['runs'][str(event_label)] = [jsonResult[event_label]]
self.results.append(result)
# Case where we support a pagename in the results
if not self.results:
for line in lines:
result = {}
r = line.strip().split(',')
r = [i for i in r if i]
if len(r) <= 1:
continue
result['index'] = index
result['page'] = r[0]
# note: if we have len(r) >1, then we have pagename,raw_results
result['runs'] = [float(i) for i in r[1:]]
self.results.append(result)
index += 1
# Original case where we just have numbers and no pagename
if not self.results:
result = {}
result['index'] = index
result['page'] = 'NULL'
result['runs'] = [float(val) for val in string.split('|')]
self.results.append(result)
class PageloaderResults(Results):
"""
results from a browser_dump snippet
https://wiki.mozilla.org/Buildbot/Talos/DataFormat#browser_output.txt
"""
format = 'tpformat'
def __init__(self, string, counter_results=None, format_pagename=True):
"""
- string : string of relevent part of browser dump
- counter_results : counter results dictionary
"""
self.counter_results = counter_results
string = string.strip()
lines = string.splitlines()
# currently we ignore the metadata on top of the output (e.g.):
# _x_x_mozilla_page_load
# _x_x_mozilla_page_load_details
# |i|pagename|runs|
lines = [line for line in lines if ';' in line]
# gather the data
self.results = []
for line in lines:
result = {}
r = line.strip('|').split(';')
r = [i for i in r if i]
if len(r) <= 2:
continue
result['index'] = int(r[0])
result['page'] = r[1]
result['runs'] = [float(i) for i in r[2:]]
# fix up page
if format_pagename:
result['page'] = self.format_pagename(result['page'])
self.results.append(result)
def format_pagename(self, page):
"""
fix up the page for reporting
"""
page = page.rstrip('/')
if '/' in page:
if 'base_page' in page or 'ref_page' in page:
# for base vs ref type test, the page name is different format, i.e.
# base_page_1_http://localhost:53309/tests/perf-reftest/bloom-basic.html
page = page.split('/')[-1]
else:
page = page.split('/')[0]
return page
class BrowserLogResults(object):
"""parse the results from the browser log output"""
# tokens for the report types
report_tokens = [
('tsformat', ('__start_report', '__end_report')),
('tpformat', ('__start_tp_report', '__end_tp_report'))
]
# tokens for timestamps, in order (attribute, (start_delimeter,
# end_delimter))
time_tokens = [
('startTime', ('__startTimestamp', '__endTimestamp')),
('beforeLaunchTime', ('__startBeforeLaunchTimestamp',
'__endBeforeLaunchTimestamp')),
('endTime', ('__startAfterTerminationTimestamp',
'__endAfterTerminationTimestamp'))
]
# regular expression for failure case if we can't parse the tokens
RESULTS_REGEX_FAIL = re.compile('__FAIL(.*?)__FAIL',
re.DOTALL | re.MULTILINE)
# regular expression for responsiveness results
RESULTS_RESPONSIVENESS_REGEX = re.compile(
'MOZ_EVENT_TRACE\ssample\s\d*?\s(\d*\.?\d*)$',
re.DOTALL | re.MULTILINE
)
# classes for results types
classes = {'tsformat': TsResults,
'tpformat': PageloaderResults}
# If we are using xperf, we do not upload the regular results, only
# xperf counters
using_xperf = False
def __init__(self, results_raw, format_pagename=True, counter_results=None,
global_counters=None):
"""
- shutdown : whether to record shutdown results or not
"""
self.counter_results = counter_results
self.global_counters = global_counters
self.format_pagename = format_pagename
self.results_raw = results_raw
# parse the results
try:
match = self.RESULTS_REGEX_FAIL.search(self.results_raw)
if match:
self.error(match.group(1))
raise utils.TalosError(match.group(1))
self.parse()
except utils.TalosError:
# TODO: consider investigating this further or adding additional
# information
raise # reraise failing exception
# accumulate counter results
self.counters(self.counter_results, self.global_counters)
def error(self, message):
"""raise a TalosError for bad parsing of the browser log"""
raise utils.TalosError(message)
def parse(self):
position = -1
# parse the report
for format, tokens in self.report_tokens:
report, position = self.get_single_token(*tokens)
if report is None:
continue
self.browser_results = report
self.format = format
previous_tokens = tokens
break
else:
self.error("Could not find report in browser output: %s"
% self.report_tokens)
# parse the timestamps
for attr, tokens in self.time_tokens:
# parse the token contents
value, _last_token = self.get_single_token(*tokens)
# check for errors
if not value:
self.error("Could not find %s in browser output: (tokens: %s)"
% (attr, tokens))
try:
value = int(value)
except ValueError:
self.error("Could not cast %s to an integer: %s"
% (attr, value))
if _last_token < position:
self.error("%s [character position: %s] found before %s"
" [character position: %s]"
% (tokens, _last_token, previous_tokens, position))
# process
setattr(self, attr, value)
position = _last_token
previous_tokens = tokens
def get_single_token(self, start_token, end_token):
"""browser logs should only have a single instance of token pairs"""
try:
parts, last_token = utils.tokenize(self.results_raw,
start_token, end_token)
except AssertionError as e:
self.error(str(e))
if not parts:
return None, -1 # no match
if len(parts) != 1:
self.error("Multiple matches for %s,%s" % (start_token, end_token))
return parts[0], last_token
def results(self):
"""return results instance appropriate to the format detected"""
if self.format not in self.classes:
raise utils.TalosError(
"Unable to find a results class for format: %s"
% repr(self.format)
)
return self.classes[self.format](self.browser_results,
format_pagename=self.format_pagename)
# methods for counters
def counters(self, counter_results=None, global_counters=None):
"""accumulate all counters"""
if global_counters is not None:
if 'responsiveness' in global_counters:
global_counters['responsiveness'].extend(self.responsiveness())
self.xperf(global_counters)
def xperf(self, counter_results):
"""record xperf counters in counter_results dictionary"""
session_store_counter = 'time_to_session_store_window_restored_ms'
counters = ['main_startup_fileio',
'main_startup_netio',
'main_normal_fileio',
'main_normal_netio',
'nonmain_startup_fileio',
'nonmain_normal_fileio',
'nonmain_normal_netio',
session_store_counter,
]
mainthread_counter_keys = ['readcount', 'readbytes', 'writecount',
'writebytes']
mainthread_counters = ['_'.join(['mainthread', counter_key])
for counter_key in mainthread_counter_keys]
self.mainthread_io(counter_results)
if not set(counters).union(set(mainthread_counters))\
.intersection(counter_results.keys()):
# no xperf counters to accumulate
return
filename = 'etl_output_thread_stats.csv'
if not os.path.exists(filename):
print("Warning: we are looking for xperf results file %s, and"
" didn't find it" % filename)
return
contents = open(filename).read()
lines = contents.splitlines()
reader = csv.reader(lines)
header = None
for row in reader:
# Read CSV
row = [i.strip() for i in row]
if not header:
# We are assuming the first row is the header and all other
# data is counters
header = row
continue
values = dict(zip(header, row))
# Format for talos
thread = values['thread']
counter = values['counter'].rsplit('_io_bytes', 1)[0]
counter_name = '%s_%s_%sio' % (thread, values['stage'], counter)
value = float(values['value'])
# Accrue counter
if counter_name in counter_results:
counter_results.setdefault(counter_name, []).append(value)
self.using_xperf = True
if (set(mainthread_counters).intersection(counter_results.keys())):
filename = 'etl_output.csv'
if not os.path.exists(filename):
print("Warning: we are looking for xperf results file"
" %s, and didn't find it" % filename)
return
contents = open(filename).read()
lines = contents.splitlines()
reader = csv.reader(lines)
header = None
for row in reader:
row = [i.strip() for i in row]
if not header:
# We are assuming the first row is the header and all
# other data is counters
header = row
continue
values = dict(zip(header, row))
for i, mainthread_counter in enumerate(mainthread_counters):
if int(values[mainthread_counter_keys[i]]) > 0:
counter_results.setdefault(mainthread_counter, [])\
.append([int(values[mainthread_counter_keys[i]]),
values['filename']])
if session_store_counter in counter_results.keys():
filename = 'etl_output_session_restore_stats.csv'
# This file is a csv but it only contains one field, so we'll just
# obtain the value by converting the second line in the file.
with open(filename, 'r') as contents:
lines = contents.read().splitlines()
value = float(lines[1].strip())
counter_results.setdefault(session_store_counter, []).append(value)
def mainthread_io(self, counter_results):
"""record mainthread IO counters in counter_results dictionary"""
# we want to measure mtio on xperf runs.
# this will be shoved into the xperf results as we ignore those
SCRIPT_DIR = \
os.path.abspath(os.path.realpath(os.path.dirname(__file__)))
filename = os.path.join(SCRIPT_DIR, 'mainthread_io.json')
try:
contents = open(filename).read()
counter_results.setdefault('mainthreadio', []).append(contents)
self.using_xperf = True
except Exception:
# silent failure is fine here as we will only see this on tp5n runs
pass
def responsiveness(self):
return self.RESULTS_RESPONSIVENESS_REGEX.findall(self.results_raw)