[Telemetry] Make page cyclers more telemetric.

tools/perf/perf_tools/page_cycler.py

Index: tools/perf/perf_tools/page_cycler.py
diff --git a/tools/perf/perf_tools/page_cycler.py b/tools/perf/perf_tools/page_cycler.py
index c5a2b18e6a7c6a51f892aae492991501f0d69caf..c29873e64919bf7a0b7e527a73a6690d5f6ede96 100644
--- a/tools/perf/perf_tools/page_cycler.py
+++ b/tools/perf/perf_tools/page_cycler.py
@@ -1,6 +1,21 @@
 # Copyright (c) 2012 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.
+
+"""The page cycler benchmark.
+
+This benchmark registers a window load handler in which is forces a layout and
+then records the value of performance.now(). This call to now() measures the
+time from navigationStart (immediately after the previous page's beforeunload
+event) until after the layout in the page's load event. In addition, two garbage
+collections are performed in between the page loads (in the beforeunload event).
+This extra garbage collection time is not included in the benchmark times.
+
+Finally, various memory and IO statistics are gathered at the very end of
+cycling all pages.
+"""
+
+import os
 import sys
 
 from perf_tools import histogram_measurement
@@ -13,15 +28,36 @@ MEMORY_HISTOGRAMS = [
     {'name': 'V8.MemoryHeapSampleTotalUsed', 'units': 'kb'}]
 
 class PageCycler(page_benchmark.PageBenchmark):
-  def WillNavigateToPage(self, page, tab):
+  def AddCommandLineOptions(self, parser):
+    # The page cyclers should default to 10 iterations. In order to change the
+    # default of an option, we must remove and re-add it.
+    pageset_repeat_option = parser.get_option('--pageset-repeat')
+    pageset_repeat_option.default = 10
+    parser.remove_option('--pageset-repeat')
+    parser.add_option(pageset_repeat_option)
+
+  def WillRunPageSet(self, tab, results):
+    # Avoid paying for a cross-renderer navigation on the first page on legacy
+    # page cyclers which use the filesystem.
+    if tab.browser.http_server:
+      tab.Navigate(tab.browser.http_server.UrlOf('nonexistent.html'))
+
+    with open(os.path.join(os.path.dirname(__file__),
+                           'page_cycler.js'), 'r') as f:
+      self.page_cycler_js = f.read()  # pylint: disable=W0201
+
     # pylint: disable=W0201
     self.start_commit_charge = tab.browser.memory_stats['SystemCommitCharge']
 
-  def DidNavigateToPage(self, page, tab):
     # pylint: disable=W0201
     self.histograms = [histogram_measurement.HistogramMeasurement(
                            h, histogram_measurement.RENDERER_HISTOGRAM)
                        for h in MEMORY_HISTOGRAMS]
+
+  def WillNavigateToPage(self, page, tab):
+    page.script_to_evaluate_on_commit = self.page_cycler_js
+
+  def DidNavigateToPage(self, page, tab):
     for h in self.histograms:
       h.Start(page, tab)
 
@@ -52,120 +88,127 @@ class PageCycler(page_benchmark.PageBenchmark):
 
     # Browser
     if 'VM' in memory['Browser']:
-      results.Add('vm_size_f_b', 'bytes', memory['Browser']['VM'],
-                  chart_name='vm_size_final_b', data_type='unimportant')
+      results.AddSummary('vm_size_f_b', 'bytes', memory['Browser']['VM'],
+                         chart_name='vm_size_final_b', data_type='unimportant')
     if 'VMPeak' in memory['Browser']:
-      results.Add('vm_pk_b', 'bytes', memory['Browser']['VMPeak'],
-                  chart_name='vm_peak_b', data_type='unimportant')
+      results.AddSummary('vm_pk_b', 'bytes', memory['Browser']['VMPeak'],
+                         chart_name='vm_peak_b', data_type='unimportant')
     if 'WorkingSetSize' in memory['Browser']:
-      results.Add('vm_%s_f_b' % metric, 'bytes',
-                  memory['Browser']['WorkingSetSize'],
-                  chart_name='vm_%s_final_b' % metric, data_type='unimportant')
+      results.AddSummary('vm_%s_f_b' % metric, 'bytes',
+                         memory['Browser']['WorkingSetSize'],
+                         chart_name='vm_%s_final_b' % metric,
+                         data_type='unimportant')
     if 'WorkingSetSizePeak' in memory['Browser']:
-      results.Add('%s_pk_b' % metric, 'bytes',
-                  memory['Browser']['WorkingSetSizePeak'],
-                  chart_name='%s_peak_b' % metric, data_type='unimportant')
+      results.AddSummary('%s_pk_b' % metric, 'bytes',
+                         memory['Browser']['WorkingSetSizePeak'],
+                         chart_name='%s_peak_b' % metric,
+                         data_type='unimportant')
     if 'PrivateDirty' in memory['Browser']:
-      results.Add('vm_private_dirty_f_b', 'bytes',
-                  memory['Browser']['PrivateDirty'],
-                  chart_name='vm_private_dirty_final_b',
-                  data_type='unimportant')
+      results.AddSummary('vm_private_dirty_f_b', 'bytes',
+                         memory['Browser']['PrivateDirty'],
+                         chart_name='vm_private_dirty_final_b',
+                         data_type='unimportant')
     if 'ProportionalSetSize' in memory['Browser']:
-      results.Add('vm_pss_f_b', 'bytes',
-                  memory['Browser']['ProportionalSetSize'],
-                  chart_name='vm_pss_final_b', data_type='unimportant')
+      results.AddSummary('vm_pss_f_b', 'bytes',
+                         memory['Browser']['ProportionalSetSize'],
+                         chart_name='vm_pss_final_b', data_type='unimportant')
 
     # Renderer
     if 'VM' in memory['Renderer']:
-      results.Add('vm_size_f_r', 'bytes', memory['Renderer']['VM'],
-                  chart_name='vm_size_final_r', data_type='unimportant')
+      results.AddSummary('vm_size_f_r', 'bytes', memory['Renderer']['VM'],
+                         chart_name='vm_size_final_r', data_type='unimportant')
     if 'VMPeak' in memory['Renderer']:
-      results.Add('vm_pk_r', 'bytes', memory['Browser']['VMPeak'],
-                  chart_name='vm_peak_r', data_type='unimportant')
+      results.AddSummary('vm_pk_r', 'bytes', memory['Browser']['VMPeak'],
+                         chart_name='vm_peak_r', data_type='unimportant')
     if 'WorkingSetSize' in memory['Renderer']:
-      results.Add('vm_%s_f_r' % metric, 'bytes',
-                  memory['Renderer']['WorkingSetSize'],
-                  chart_name='vm_%s_final_r' % metric, data_type='unimportant')
+      results.AddSummary('vm_%s_f_r' % metric, 'bytes',
+                         memory['Renderer']['WorkingSetSize'],
+                         chart_name='vm_%s_final_r' % metric,
+                         data_type='unimportant')
     if 'WorkingSetSizePeak' in memory['Renderer']:
-      results.Add('%s_pk_r' % metric, 'bytes',
-                  memory['Browser']['WorkingSetSizePeak'],
-                  chart_name='%s_peak_r' % metric, data_type='unimportant')
+      results.AddSummary('%s_pk_r' % metric, 'bytes',
+                         memory['Browser']['WorkingSetSizePeak'],
+                         chart_name='%s_peak_r' % metric,
+                         data_type='unimportant')
     if 'PrivateDirty' in memory['Renderer']:
-      results.Add('vm_private_dirty_f_r', 'bytes',
-                  memory['Renderer']['PrivateDirty'],
-                  chart_name='vm_private_dirty_final_r',
-                  data_type='unimportant')
+      results.AddSummary('vm_private_dirty_f_r', 'bytes',
+                         memory['Renderer']['PrivateDirty'],
+                         chart_name='vm_private_dirty_final_r',
+                         data_type='unimportant')
     if 'ProportionalSetSize' in memory['Renderer']:
-      results.Add('vm_pss_f_r', 'bytes',
-                  memory['Renderer']['ProportionalSetSize'],
-                  chart_name='vm_pss_final_r', data_type='unimportant')
+      results.AddSummary('vm_pss_f_r', 'bytes',
+                         memory['Renderer']['ProportionalSetSize'],
+                         chart_name='vm_pss_final_r', data_type='unimportant')
 
     # Total
     if 'VM' in memory['Browser'] and 'VM' in memory['Renderer']:
-      results.Add('vm_size_f_t', 'bytes',
-                  memory['Browser']['VM'] + memory['Renderer']['VM'],
-                  chart_name='vm_size_final_t', data_type='unimportant')
+      results.AddSummary('vm_size_f_t', 'bytes',
+                         memory['Browser']['VM'] + memory['Renderer']['VM'],
+                         chart_name='vm_size_final_t', data_type='unimportant')
     if ('WorkingSetSize' in memory['Browser'] and
         'WorkingSetSize' in memory['Renderer']):
-      results.Add('vm_%s_f_t' % metric, 'bytes',
-                  memory['Browser']['WorkingSetSize'] +
-                  memory['Renderer']['WorkingSetSize'],
-                  chart_name='vm_%s_final_t' % metric, data_type='unimportant')
+      results.AddSummary('vm_%s_f_t' % metric, 'bytes',
+                         memory['Browser']['WorkingSetSize'] +
+                         memory['Renderer']['WorkingSetSize'],
+                         chart_name='vm_%s_final_t' % metric,
+                         data_type='unimportant')
     if ('PrivateDirty' in memory['Browser'] and
         'PrivateDirty' in memory['Renderer']):
-      results.Add('vm_private_dirty_f_t', 'bytes',
-                  memory['Browser']['PrivateDirty'] +
-                  memory['Renderer']['PrivateDirty'],
-                  chart_name='vm_private_dirty_final_t',
-                  data_type='unimportant')
+      results.AddSummary('vm_private_dirty_f_t', 'bytes',
+                         memory['Browser']['PrivateDirty'] +
+                         memory['Renderer']['PrivateDirty'],
+                         chart_name='vm_private_dirty_final_t',
+                         data_type='unimportant')
     if ('ProportionalSetSize' in memory['Browser'] and
         'ProportionalSetSize' in memory['Renderer']):
-      results.Add('vm_pss_f_t', 'bytes',
-                  memory['Browser']['ProportionalSetSize'] +
-                  memory['Renderer']['ProportionalSetSize'],
-                  chart_name='vm_pss_final_t', data_type='unimportant')
+      results.AddSummary('vm_pss_f_t', 'bytes',
+                         memory['Browser']['ProportionalSetSize'] +
+                         memory['Renderer']['ProportionalSetSize'],
+                         chart_name='vm_pss_final_t', data_type='unimportant')
 
-    results.Add('cc', 'kb',
-                memory['SystemCommitCharge'] - self.start_commit_charge,
-                chart_name='commit_charge', data_type='unimportant')
-    results.Add('proc_', 'count', memory['ProcessCount'],
-                chart_name='processes', data_type='unimportant')
+    results.AddSummary('cc', 'kb',
+                       memory['SystemCommitCharge'] - self.start_commit_charge,
+                       chart_name='commit_charge', data_type='unimportant')
+    results.AddSummary('proc_', 'count', memory['ProcessCount'],
+                       chart_name='processes', data_type='unimportant')
 
   def MeasureIO(self, tab, results):
     io_stats = tab.browser.io_stats
     if not io_stats['Browser']:
       return
-    results.Add('r_op_b', '', io_stats['Browser']['ReadOperationCount'],
-                chart_name='read_op_b', data_type='unimportant')
-    results.Add('w_op_b', '', io_stats['Browser']['WriteOperationCount'],
-                chart_name='write_op_b', data_type='unimportant')
-    results.Add('r_b', 'kb', io_stats['Browser']['ReadTransferCount'] / 1024,
-                chart_name='read_byte_b', data_type='unimportant')
-    results.Add('w_b', 'kb', io_stats['Browser']['WriteTransferCount'] / 1024,
-                chart_name='write_byte_b', data_type='unimportant')
-    results.Add('r_op_r', '', io_stats['Renderer']['ReadOperationCount'],
-                chart_name='read_op_r', data_type='unimportant')
-    results.Add('w_op_r', '', io_stats['Renderer']['WriteOperationCount'],
-                chart_name='write_op_r', data_type='unimportant')
-    results.Add('r_r', 'kb', io_stats['Renderer']['ReadTransferCount'] / 1024,
-                chart_name='read_byte_r', data_type='unimportant')
-    results.Add('w_r', 'kb', io_stats['Renderer']['WriteTransferCount'] / 1024,
-                chart_name='write_byte_r', data_type='unimportant')
+    results.AddSummary('r_op_b', '', io_stats['Browser']['ReadOperationCount'],
+                       chart_name='read_op_b', data_type='unimportant')
+    results.AddSummary('w_op_b', '', io_stats['Browser']['WriteOperationCount'],
+                       chart_name='write_op_b', data_type='unimportant')
+    results.AddSummary('r_b', 'kb',
+                       io_stats['Browser']['ReadTransferCount'] / 1024,
+                       chart_name='read_byte_b', data_type='unimportant')
+    results.AddSummary('w_b', 'kb',
+                       io_stats['Browser']['WriteTransferCount'] / 1024,
+                       chart_name='write_byte_b', data_type='unimportant')
+    results.AddSummary('r_op_r', '', io_stats['Renderer']['ReadOperationCount'],
+                       chart_name='read_op_r', data_type='unimportant')
+    results.AddSummary('w_op_r', '',
+                       io_stats['Renderer']['WriteOperationCount'],
+                       chart_name='write_op_r', data_type='unimportant')
+    results.AddSummary('r_r', 'kb',
+                       io_stats['Renderer']['ReadTransferCount'] / 1024,
+                       chart_name='read_byte_r', data_type='unimportant')
+    results.AddSummary('w_r', 'kb',
+                       io_stats['Renderer']['WriteTransferCount'] / 1024,
+                       chart_name='write_byte_r', data_type='unimportant')
 
   def MeasurePage(self, page, tab, results):
     def _IsDone():
-      return tab.GetCookieByName('__pc_done') == '1'
-    util.WaitFor(_IsDone, 1200, poll_interval=5)
-    print 'Pages: [%s]' % tab.GetCookieByName('__pc_pages')
-
-    self.MeasureMemory(tab, results)
-    self.MeasureIO(tab, results)
+      return bool(tab.GetCookieByName('__pc_load_time'))
+    util.WaitFor(_IsDone, 1200)
 
     for h in self.histograms:
       h.GetValue(page, tab, results)
 
-    def _IsNavigatedToReport():
-      return tab.GetCookieByName('__navigated_to_report') == '1'
-    util.WaitFor(_IsNavigatedToReport, 60, poll_interval=5)
-    timings = tab.EvaluateJavaScript('__get_timings()').split(',')
-    results.Add('t', 'ms', [int(t) for t in timings], chart_name='times')
+    results.Add('t', 'ms', int(float(tab.GetCookieByName('__pc_load_time'))),
+                chart_name='times')
+
+  def DidRunPageSet(self, tab, results):
+    self.MeasureMemory(tab, results)
+    self.MeasureIO(tab, results)