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# Copyright 2014 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 collections
import page_sets
import re
from core import perf_benchmark
from telemetry import benchmark
from telemetry.core import util
from telemetry.page import action_runner
from telemetry.page import page_test
from telemetry.timeline import async_slice as async_slice_module
from telemetry.timeline import slice as slice_module
from telemetry.value import scalar
from measurements import timeline_controller
from metrics import speedindex
class _ServiceWorkerTimelineMetric(object):
def AddResultsOfCounters(self, process, counter_regex_string, results):
counter_filter = re.compile(counter_regex_string)
for counter_name, counter in process.counters.iteritems():
if not counter_filter.search(counter_name):
continue
total = sum(counter.totals)
# Results objects cannot contain the '.' character, so remove that here.
sanitized_counter_name = counter_name.replace('.', '_')
results.AddValue(scalar.ScalarValue(
results.current_page, sanitized_counter_name, 'count', total))
results.AddValue(scalar.ScalarValue(
results.current_page, sanitized_counter_name + '_avg', 'count',
total / float(len(counter.totals))))
def AddResultsOfEvents(
self, process, thread_regex_string, event_regex_string, results):
thread_filter = re.compile(thread_regex_string)
event_filter = re.compile(event_regex_string)
for thread in process.threads.itervalues():
thread_name = thread.name.replace('/', '_')
if not thread_filter.search(thread_name):
continue
filtered_events = []
for event in thread.IterAllEvents():
event_name = event.name.replace('.', '_')
if event_filter.search(event_name):
filtered_events.append(event)
async_events_by_name = collections.defaultdict(list)
sync_events_by_name = collections.defaultdict(list)
for event in filtered_events:
if isinstance(event, async_slice_module.AsyncSlice):
async_events_by_name[event.name].append(event)
elif isinstance(event, slice_module.Slice):
sync_events_by_name[event.name].append(event)
for event_name, event_group in async_events_by_name.iteritems():
times = [e.duration for e in event_group]
self._AddResultOfEvent(thread_name, event_name, times, results)
for event_name, event_group in sync_events_by_name.iteritems():
times = [e.self_time for e in event_group]
self._AddResultOfEvent(thread_name, event_name, times, results)
def _AddResultOfEvent(self, thread_name, event_name, times, results):
total = sum(times)
biggest_jank = max(times)
# Results objects cannot contain the '.' character, so remove that here.
sanitized_event_name = event_name.replace('.', '_')
full_name = thread_name + '|' + sanitized_event_name
results.AddValue(scalar.ScalarValue(
results.current_page, full_name, 'ms', total))
results.AddValue(scalar.ScalarValue(
results.current_page, full_name + '_max', 'ms', biggest_jank))
results.AddValue(scalar.ScalarValue(
results.current_page, full_name + '_avg', 'ms', total / len(times)))
class _ServiceWorkerMeasurement(page_test.PageTest):
"""Measure Speed Index and TRACE_EVENTs"""
def __init__(self):
super(_ServiceWorkerMeasurement, self).__init__()
self._timeline_controller = timeline_controller.TimelineController()
self._speed_index = speedindex.SpeedIndexMetric()
self._page_open_times = collections.defaultdict(int)
def CustomizeBrowserOptions(self, options):
options.AppendExtraBrowserArgs([
'--enable-experimental-web-platform-features'
])
def WillNavigateToPage(self, page, tab):
self._timeline_controller.SetUp(page, tab)
self._timeline_controller.Start(tab)
self._speed_index.Start(page, tab)
def ValidateAndMeasurePage(self, page, tab, results):
runner = action_runner.ActionRunner(tab)
# timeline_controller requires creation of at least a single interaction
# record. service_worker should be refactored to follow the
# timeline_based_measurement or it should not re-use timeline_controller
# logic for start & stop tracing.
with runner.CreateInteraction('_DummyInteraction'):
pass
tab.WaitForDocumentReadyStateToBeComplete(40)
self._timeline_controller.Stop(tab, results)
# Retrieve TRACE_EVENTs
timeline_metric = _ServiceWorkerTimelineMetric()
browser_process = self._timeline_controller.model.browser_process
filter_text = '(RegisterServiceWorker|'\
'UnregisterServiceWorker|'\
'ProcessAllocate|'\
'FindRegistrationForDocument|'\
'DispatchFetchEvent)'
timeline_metric.AddResultsOfEvents(
browser_process, 'IOThread', filter_text , results)
# Record Speed Index
def SpeedIndexIsFinished():
return self._speed_index.IsFinished(tab)
util.WaitFor(SpeedIndexIsFinished, 60)
self._speed_index.Stop(page, tab)
# Distinguish the first and second load from the subsequent loads
url = str(page)
chart_prefix = 'page_load'
self._page_open_times[url] += 1
if self._page_open_times[url] == 1:
chart_prefix += '_1st'
elif self._page_open_times[url] == 2:
chart_prefix += '_2nd'
else:
chart_prefix += '_later'
self._speed_index.AddResults(tab, results, chart_prefix)
class _ServiceWorkerMicroBenchmarkMeasurement(page_test.PageTest):
"""Measure JS land values and TRACE_EVENTs"""
def __init__(self):
super(_ServiceWorkerMicroBenchmarkMeasurement, self).__init__()
self._timeline_controller = timeline_controller.TimelineController()
def CustomizeBrowserOptions(self, options):
options.AppendExtraBrowserArgs([
'--enable-experimental-web-platform-features'
])
def WillNavigateToPage(self, page, tab):
self._timeline_controller.SetUp(page, tab)
self._timeline_controller.Start(tab)
def ValidateAndMeasurePage(self, page, tab, results):
runner = action_runner.ActionRunner(tab)
# timeline_controller requires creation of at least a single interaction
# record. service_worker should be refactored to follow the
# timeline_based_measurement or it should not re-use timeline_controller
# logic for start & stop tracing.
with runner.CreateInteraction('_DummyInteraction'):
pass
tab.WaitForJavaScriptExpression('window.done', 40)
self._timeline_controller.Stop(tab, results)
# Measure JavaScript-land
json = tab.EvaluateJavaScript('window.results || {}')
for key, value in json.iteritems():
results.AddValue(scalar.ScalarValue(
results.current_page, key, value['units'], value['value']))
# Retrieve TRACE_EVENTs
timeline_metric = _ServiceWorkerTimelineMetric()
browser_process = self._timeline_controller.model.browser_process
filter_text = '(RegisterServiceWorker|'\
'UnregisterServiceWorker|'\
'ProcessAllocate|'\
'FindRegistrationForDocument|'\
'DispatchFetchEvent)'
timeline_metric.AddResultsOfEvents(
browser_process, 'IOThread', filter_text , results)
class ServiceWorkerPerfTest(perf_benchmark.PerfBenchmark):
"""Performance test on public applications using ServiceWorker"""
test = _ServiceWorkerMeasurement
page_set = page_sets.ServiceWorkerPageSet
@classmethod
def Name(cls):
return 'service_worker.service_worker'
# Disabled due to redness on the tree. crbug.com/442752
# TODO(horo): Enable after the reference build newer than M39 will be rolled.
@benchmark.Disabled('reference')
class ServiceWorkerMicroBenchmarkPerfTest(perf_benchmark.PerfBenchmark):
"""This test measures the performance of pages using ServiceWorker.
As a page set, two benchamrk pages (many registration, many concurrent
fetching) and one application (Trained-to-thrill:
https://jakearchibald.github.io/trained-to-thrill/) are included. Execution
time of these pages will be shown as Speed Index, and TRACE_EVENTs are
subsidiary information to know more detail performance regression.
"""
test = _ServiceWorkerMicroBenchmarkMeasurement
page_set = page_sets.ServiceWorkerMicroBenchmarkPageSet
@classmethod
def Name(cls):
return 'service_worker.service_worker_micro_benchmark'
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