New page set added to include pathologically bad and janky sites.

tools/perf/page_sets/tough_scheduling_cases.py

Index: tools/perf/page_sets/tough_scheduling_cases.py
diff --git a/tools/perf/page_sets/tough_scheduling_cases.py b/tools/perf/page_sets/tough_scheduling_cases.py
index 96574e031a7e36fada615f1fecee5dda9f453b6d..40c0c2b6ee71c09db2aba0e52f99137b18a569f1 100644
--- a/tools/perf/page_sets/tough_scheduling_cases.py
+++ b/tools/perf/page_sets/tough_scheduling_cases.py
@@ -22,106 +22,106 @@ class ToughSchedulingCasesPage(page_module.Page):
 
 class Page1(ToughSchedulingCasesPage):
 
-  """ Why: Simulate oversubscribed main thread """
+  """Why: Simulate oversubscribed main thread."""
 
   def __init__(self, page_set):
     super(Page1, self).__init__(
-      url='file://tough_scheduling_cases/simple_text_page.html?main_busy',
-      page_set=page_set)
+        url='file://tough_scheduling_cases/simple_text_page.html?main_busy',
+        page_set=page_set)
 
     self.synthetic_delays = {'cc.BeginMainFrame': {'target_duration': 0.008}}
 
 
 class Page2(ToughSchedulingCasesPage):
 
-  """ Why: Simulate oversubscribed main thread """
+  """Why: Simulate oversubscribed main thread."""
 
   def __init__(self, page_set):
     super(Page2, self).__init__(
-      # pylint: disable=C0301
-      url='file://tough_scheduling_cases/simple_text_page.html?main_very_busy',
-      page_set=page_set)
+        # pylint: disable=C0301
+        url='file://tough_scheduling_cases/simple_text_page.html?main_very_busy',
+        page_set=page_set)
 
     self.synthetic_delays = {'cc.BeginMainFrame': {'target_duration': 0.024}}
 
 
 class Page3(ToughSchedulingCasesPage):
 
-  """ Why: Simulate a page with a a few graphics layers """
+  """Why: Simulate a page with a a few graphics layers."""
 
   def __init__(self, page_set):
     super(Page3, self).__init__(
-      # pylint: disable=C0301
-      url='file://tough_scheduling_cases/simple_text_page.html?medium_layers',
-      page_set=page_set)
+        # pylint: disable=C0301
+        url='file://tough_scheduling_cases/simple_text_page.html?medium_layers',
+        page_set=page_set)
 
     self.synthetic_delays = {
-      'cc.DrawAndSwap': {'target_duration': 0.004},
-      'gpu.PresentingFrame': {'target_duration': 0.004},
-      'cc.BeginMainFrame': {'target_duration': 0.004}
+        'cc.DrawAndSwap': {'target_duration': 0.004},
+        'gpu.PresentingFrame': {'target_duration': 0.004},
+        'cc.BeginMainFrame': {'target_duration': 0.004}
     }
 
 
 class Page4(ToughSchedulingCasesPage):
 
-  """ Why: Simulate a page with many graphics layers """
+  """Why: Simulate a page with many graphics layers."""
 
   def __init__(self, page_set):
     super(Page4, self).__init__(
-      # pylint: disable=C0301
-      url='file://tough_scheduling_cases/simple_text_page.html?many_layers',
-      page_set=page_set)
+        # pylint: disable=C0301
+        url='file://tough_scheduling_cases/simple_text_page.html?many_layers',
+        page_set=page_set)
 
     self.synthetic_delays = {
-      'cc.DrawAndSwap': {'target_duration': 0.012},
-      'gpu.PresentingFrame': {'target_duration': 0.012},
-      'cc.BeginMainFrame': {'target_duration': 0.012}
+        'cc.DrawAndSwap': {'target_duration': 0.012},
+        'gpu.PresentingFrame': {'target_duration': 0.012},
+        'cc.BeginMainFrame': {'target_duration': 0.012}
     }
 
 
 class Page5(ToughSchedulingCasesPage):
 
-  """ Why: Simulate a page with expensive recording and rasterization """
+  """Why: Simulate a page with expensive recording and rasterization."""
 
   def __init__(self, page_set):
     super(Page5, self).__init__(
-      # pylint: disable=C0301
-      url='file://tough_scheduling_cases/simple_text_page.html?medium_raster',
-      page_set=page_set)
+        # pylint: disable=C0301
+        url='file://tough_scheduling_cases/simple_text_page.html?medium_raster',
+        page_set=page_set)
 
     self.synthetic_delays = {
-      'cc.RasterRequiredForActivation': {'target_duration': 0.004},
-      'cc.BeginMainFrame': {'target_duration': 0.004},
-      'gpu.AsyncTexImage': {'target_duration': 0.004}
+        'cc.RasterRequiredForActivation': {'target_duration': 0.004},
+        'cc.BeginMainFrame': {'target_duration': 0.004},
+        'gpu.AsyncTexImage': {'target_duration': 0.004}
     }
 
 
 class Page6(ToughSchedulingCasesPage):
 
-  """ Why: Simulate a page with expensive recording and rasterization """
+  """Why: Simulate a page with expensive recording and rasterization."""
 
   def __init__(self, page_set):
     super(Page6, self).__init__(
-      # pylint: disable=C0301
-      url='file://tough_scheduling_cases/simple_text_page.html?heavy_raster',
-      page_set=page_set)
+        # pylint: disable=C0301
+        url='file://tough_scheduling_cases/simple_text_page.html?heavy_raster',
+        page_set=page_set)
 
     self.synthetic_delays = {
-      'cc.RasterRequiredForActivation': {'target_duration': 0.024},
-      'cc.BeginMainFrame': {'target_duration': 0.024},
-      'gpu.AsyncTexImage': {'target_duration': 0.024}
+        'cc.RasterRequiredForActivation': {'target_duration': 0.024},
+        'cc.BeginMainFrame': {'target_duration': 0.024},
+        'gpu.AsyncTexImage': {'target_duration': 0.024}
     }
 
 
 class Page7(ToughSchedulingCasesPage):
 
-  """ Why: Medium cost touch handler """
+  """Why: Medium cost touch handler."""
 
   def __init__(self, page_set):
     super(Page7, self).__init__(
-      # pylint: disable=C0301
-      url='file://tough_scheduling_cases/touch_handler_scrolling.html?medium_handler',
-      page_set=page_set)
+        # pylint: disable=C0301
+        url='file://tough_scheduling_cases/touch_handler_scrolling.html?medium_handler',
+        page_set=page_set)
 
     self.synthetic_delays = {'blink.HandleInputEvent':
                              {'target_duration': 0.008}}
@@ -129,13 +129,13 @@ class Page7(ToughSchedulingCasesPage):
 
 class Page8(ToughSchedulingCasesPage):
 
-  """ Why: Slow touch handler """
+  """Why: Slow touch handler."""
 
   def __init__(self, page_set):
     super(Page8, self).__init__(
-      # pylint: disable=C0301
-      url='file://tough_scheduling_cases/touch_handler_scrolling.html?slow_handler',
-      page_set=page_set)
+        # pylint: disable=C0301
+        url='file://tough_scheduling_cases/touch_handler_scrolling.html?slow_handler',
+        page_set=page_set)
 
     self.synthetic_delays = {'blink.HandleInputEvent':
                              {'target_duration': 0.024}}
@@ -143,13 +143,13 @@ class Page8(ToughSchedulingCasesPage):
 
 class Page9(ToughSchedulingCasesPage):
 
-  """ Why: Touch handler that often takes a long time """
+  """Why: Touch handler that often takes a long time."""
 
   def __init__(self, page_set):
     super(Page9, self).__init__(
-      # pylint: disable=C0301
-      url='file://tough_scheduling_cases/touch_handler_scrolling.html?janky_handler',
-      page_set=page_set)
+        # pylint: disable=C0301
+        url='file://tough_scheduling_cases/touch_handler_scrolling.html?janky_handler',
+        page_set=page_set)
 
     self.synthetic_delays = {'blink.HandleInputEvent':
                              {'target_duration': 0.024, 'mode': 'alternating'}
@@ -158,13 +158,13 @@ class Page9(ToughSchedulingCasesPage):
 
 class Page10(ToughSchedulingCasesPage):
 
-  """ Why: Touch handler that occasionally takes a long time """
+  """Why: Touch handler that occasionally takes a long time."""
 
   def __init__(self, page_set):
     super(Page10, self).__init__(
-      # pylint: disable=C0301
-      url='file://tough_scheduling_cases/touch_handler_scrolling.html?occasionally_janky_handler',
-      page_set=page_set)
+        # pylint: disable=C0301
+        url='file://tough_scheduling_cases/touch_handler_scrolling.html?occasionally_janky_handler',
+        page_set=page_set)
 
     self.synthetic_delays = {'blink.HandleInputEvent':
                              {'target_duration': 0.024, 'mode': 'oneshot'}}
@@ -172,15 +172,14 @@ class Page10(ToughSchedulingCasesPage):
 
 class Page11(ToughSchedulingCasesPage):
 
-  """ Why: Super expensive touch handler causes browser to scroll after a
-  timeout.
-  """
+  """Why: Super expensive touch handler causes browser to scroll after a
+  timeout."""
 
   def __init__(self, page_set):
     super(Page11, self).__init__(
-      # pylint: disable=C0301
-      url='file://tough_scheduling_cases/touch_handler_scrolling.html?super_slow_handler',
-      page_set=page_set)
+        # pylint: disable=C0301
+        url='file://tough_scheduling_cases/touch_handler_scrolling.html?super_slow_handler',
+        page_set=page_set)
 
     self.synthetic_delays = {'blink.HandleInputEvent':
                              {'target_duration': 0.2}}
@@ -188,69 +187,69 @@ class Page11(ToughSchedulingCasesPage):
 
 class Page12(ToughSchedulingCasesPage):
 
-  """ Why: Super expensive touch handler that only occupies a part of the page.
+  """Why: Super expensive touch handler that only occupies a part of the page.
   """
 
   def __init__(self, page_set):
     super(Page12, self).__init__(
-      url='file://tough_scheduling_cases/div_touch_handler.html',
-      page_set=page_set)
+        url='file://tough_scheduling_cases/div_touch_handler.html',
+        page_set=page_set)
 
     self.synthetic_delays = {'blink.HandleInputEvent': {'target_duration': 0.2}}
 
 
 class Page13(ToughSchedulingCasesPage):
 
-  """ Why: Test a moderately heavy requestAnimationFrame handler """
+  """Why: Test a moderately heavy requestAnimationFrame handler."""
 
   def __init__(self, page_set):
     super(Page13, self).__init__(
-      url='file://tough_scheduling_cases/raf.html?medium_handler',
-      page_set=page_set)
+        url='file://tough_scheduling_cases/raf.html?medium_handler',
+        page_set=page_set)
 
     self.synthetic_delays = {
-      'cc.RasterRequiredForActivation': {'target_duration': 0.004},
-      'cc.BeginMainFrame': {'target_duration': 0.004},
-      'gpu.AsyncTexImage': {'target_duration': 0.004}
+        'cc.RasterRequiredForActivation': {'target_duration': 0.004},
+        'cc.BeginMainFrame': {'target_duration': 0.004},
+        'gpu.AsyncTexImage': {'target_duration': 0.004}
     }
 
 
 class Page14(ToughSchedulingCasesPage):
 
-  """ Why: Test a moderately heavy requestAnimationFrame handler """
+  """Why: Test a moderately heavy requestAnimationFrame handler."""
 
   def __init__(self, page_set):
     super(Page14, self).__init__(
-      url='file://tough_scheduling_cases/raf.html?heavy_handler',
-      page_set=page_set)
+        url='file://tough_scheduling_cases/raf.html?heavy_handler',
+        page_set=page_set)
 
     self.synthetic_delays = {
-      'cc.RasterRequiredForActivation': {'target_duration': 0.024},
-      'cc.BeginMainFrame': {'target_duration': 0.024},
-      'gpu.AsyncTexImage': {'target_duration': 0.024}
+        'cc.RasterRequiredForActivation': {'target_duration': 0.024},
+        'cc.BeginMainFrame': {'target_duration': 0.024},
+        'gpu.AsyncTexImage': {'target_duration': 0.024}
     }
 
 
 class Page15(ToughSchedulingCasesPage):
 
-  """ Why: Simulate a heavily GPU bound page """
+  """Why: Simulate a heavily GPU bound page."""
 
   def __init__(self, page_set):
     super(Page15, self).__init__(
-      url='file://tough_scheduling_cases/raf.html?gpu_bound',
-      page_set=page_set)
+        url='file://tough_scheduling_cases/raf.html?gpu_bound',
+        page_set=page_set)
 
     self.synthetic_delays = {'gpu.PresentingFrame': {'target_duration': 0.1}}
 
 
 class Page16(ToughSchedulingCasesPage):
 
-  """ Why: Test a requestAnimationFrame handler with a heavy first frame """
+  """Why: Test a requestAnimationFrame handler with a heavy first frame."""
 
   def __init__(self, page_set):
     super(Page16, self).__init__(
-      url='file://tough_scheduling_cases/raf.html?heavy_first_frame',
-      page_set=page_set)
+        url='file://tough_scheduling_cases/raf.html?heavy_first_frame',
+        page_set=page_set)
 
     self.synthetic_delays = {'cc.BeginMainFrame': {'target_duration': 0.15,
                                                    'mode': 'oneshot'}}
@@ -258,42 +257,42 @@ class Page16(ToughSchedulingCasesPage):
 
 class Page17(ToughSchedulingCasesPage):
 
-  """ Why: Medium stress test for the scheduler """
+  """Why: Medium stress test for the scheduler."""
 
   def __init__(self, page_set):
     super(Page17, self).__init__(
-      url='file://tough_scheduling_cases/raf_touch_animation.html?medium',
-      page_set=page_set)
+        url='file://tough_scheduling_cases/raf_touch_animation.html?medium',
+        page_set=page_set)
 
     self.synthetic_delays = {
-      'cc.DrawAndSwap': {'target_duration': 0.004},
-      'cc.BeginMainFrame': {'target_duration': 0.004}
+        'cc.DrawAndSwap': {'target_duration': 0.004},
+        'cc.BeginMainFrame': {'target_duration': 0.004}
     }
 
 
 class Page18(ToughSchedulingCasesPage):
 
-  """ Why: Heavy stress test for the scheduler """
+  """Why: Heavy stress test for the scheduler."""
 
   def __init__(self, page_set):
     super(Page18, self).__init__(
-      url='file://tough_scheduling_cases/raf_touch_animation.html?heavy',
-      page_set=page_set)
+        url='file://tough_scheduling_cases/raf_touch_animation.html?heavy',
+        page_set=page_set)
 
     self.synthetic_delays = {
-      'cc.DrawAndSwap': {'target_duration': 0.012},
-      'cc.BeginMainFrame': {'target_duration': 0.012}
+        'cc.DrawAndSwap': {'target_duration': 0.012},
+        'cc.BeginMainFrame': {'target_duration': 0.012}
     }
 
 
 class Page19(ToughSchedulingCasesPage):
 
-  """ Why: Both main and impl thread animating concurrently """
+  """Why: Both main and impl thread animating concurrently."""
 
   def __init__(self, page_set):
     super(Page19, self).__init__(
-      url='file://tough_scheduling_cases/split_animation.html',
-      page_set=page_set)
+        url='file://tough_scheduling_cases/split_animation.html',
+        page_set=page_set)
 
   def RunPageInteractions(self, action_runner):
     action_runner.Wait(3)
@@ -301,12 +300,12 @@ class Page19(ToughSchedulingCasesPage):
 
 class Page20(ToughSchedulingCasesPage):
 
-  """ Why: Simple JS touch dragging """
+  """Why: Simple JS touch dragging."""
 
   def __init__(self, page_set):
     super(Page20, self).__init__(
-      url='file://tough_scheduling_cases/simple_touch_drag.html',
-      page_set=page_set)
+        url='file://tough_scheduling_cases/simple_touch_drag.html',
+        page_set=page_set)
 
   def RunPageInteractions(self, action_runner):
     interaction = action_runner.BeginGestureInteraction(
@@ -322,18 +321,18 @@ class Page20(ToughSchedulingCasesPage):
 
 class EmptyTouchHandlerPage(ToughSchedulingCasesPage):
 
-  """ Why: Scrolling on a page with a touch handler that consumes no events but
-      may be slow """
+  """Why: Scrolling on a page with a touch handler that consumes no events but
+      may be slow."""
 
   def __init__(self, name, desktop, slow_handler, bounce, page_set):
     super(EmptyTouchHandlerPage, self).__init__(
-      url='file://tough_scheduling_cases/empty_touch_handler' +
+        url='file://tough_scheduling_cases/empty_touch_handler' +
         ('_desktop' if desktop else '') + '.html?' + name,
-      page_set=page_set)
+        page_set=page_set)
 
     if slow_handler:
       self.synthetic_delays = {
-        'blink.HandleInputEvent': {'target_duration': 0.2}
+          'blink.HandleInputEvent': {'target_duration': 0.2}
       }
 
     self.bounce = bounce
@@ -360,8 +359,8 @@ class SynchronizedScrollOffsetPage(ToughSchedulingCasesPage):
 
   def __init__(self, page_set):
     super(SynchronizedScrollOffsetPage, self).__init__(
-      url='file://tough_scheduling_cases/sync_scroll_offset.html',
-      page_set=page_set)
+        url='file://tough_scheduling_cases/sync_scroll_offset.html',
+        page_set=page_set)
 
   def RunPageInteractions(self, action_runner):
     interaction = action_runner.BeginGestureInteraction(
@@ -372,7 +371,7 @@ class SynchronizedScrollOffsetPage(ToughSchedulingCasesPage):
 
 class ToughSchedulingCasesPageSet(page_set_module.PageSet):
 
-  """ Tough scheduler latency test cases """
+  """Tough scheduler latency test cases."""
 
   def __init__(self):
     super(ToughSchedulingCasesPageSet, self).__init__(
@@ -382,8 +381,8 @@ class ToughSchedulingCasesPageSet(page_set_module.PageSet):
 
     # Why: Simple scrolling baseline
     self.AddUserStory(ToughSchedulingCasesPage(
-      'file://tough_scheduling_cases/simple_text_page.html',
-      self))
+        'file://tough_scheduling_cases/simple_text_page.html',
+        self))
     self.AddUserStory(Page1(self))
     self.AddUserStory(Page2(self))
     self.AddUserStory(Page3(self))
@@ -394,8 +393,8 @@ class ToughSchedulingCasesPageSet(page_set_module.PageSet):
     # self.AddUserStory(Page6(self))
     # Why: Touch handler scrolling baseline
     self.AddUserStory(ToughSchedulingCasesPage(
-      'file://tough_scheduling_cases/touch_handler_scrolling.html',
-      self))
+        'file://tough_scheduling_cases/touch_handler_scrolling.html',
+        self))
     self.AddUserStory(Page7(self))
     self.AddUserStory(Page8(self))
     self.AddUserStory(Page9(self))
@@ -404,12 +403,12 @@ class ToughSchedulingCasesPageSet(page_set_module.PageSet):
     self.AddUserStory(Page12(self))
     # Why: requestAnimationFrame scrolling baseline
     self.AddUserStory(ToughSchedulingCasesPage(
-      'file://tough_scheduling_cases/raf.html',
-      self))
+        'file://tough_scheduling_cases/raf.html',
+        self))
     # Why: Test canvas blocking behavior
     self.AddUserStory(ToughSchedulingCasesPage(
-      'file://tough_scheduling_cases/raf_canvas.html',
-      self))
+        'file://tough_scheduling_cases/raf_canvas.html',
+        self))
     # Disabled until crbug.com/413829 is fixed.
     # self.AddUserStory(Page13(self))
     # Disabled because of crbug.com/413829 and flakiness crbug.com/368532
@@ -418,67 +417,64 @@ class ToughSchedulingCasesPageSet(page_set_module.PageSet):
     self.AddUserStory(Page16(self))
     # Why: Test a requestAnimationFrame handler with concurrent CSS animation
     self.AddUserStory(ToughSchedulingCasesPage(
-      'file://tough_scheduling_cases/raf_animation.html',
-      self))
+        'file://tough_scheduling_cases/raf_animation.html',
+        self))
     # Why: Stress test for the scheduler
     self.AddUserStory(ToughSchedulingCasesPage(
-      'file://tough_scheduling_cases/raf_touch_animation.html',
-      self))
+        'file://tough_scheduling_cases/raf_touch_animation.html',
+        self))
     self.AddUserStory(Page17(self))
     self.AddUserStory(Page18(self))
     self.AddUserStory(Page19(self))
     self.AddUserStory(Page20(self))
     # Why: Baseline for scrolling in the presence of a no-op touch handler
     self.AddUserStory(EmptyTouchHandlerPage(
-      name='baseline',
-      desktop=False,
-      slow_handler=False,
-      bounce=False,
-      page_set=self))
+        name='baseline',
+        desktop=False,
+        slow_handler=False,
+        bounce=False,
+        page_set=self))
     # Why: Slow handler blocks scroll start
     self.AddUserStory(EmptyTouchHandlerPage(
-      name='slow_handler',
-      desktop=False,
-      slow_handler=True,
-      bounce=False,
-      page_set=self))
-    # Why: Slow handler blocks scroll start until touch ACK timeout
+        name='slow_handler',
+        desktop=False,
+        slow_handler=True,
+        bounce=False,
+        page_set=self))
+      # Why: Slow handler blocks scroll start until touch ACK timeout
     self.AddUserStory(EmptyTouchHandlerPage(
-      name='desktop_slow_handler',
-      desktop=True,
-      slow_handler=True,
-      bounce=False,
-      page_set=self))
+        name='desktop_slow_handler',
+        desktop=True,
+        slow_handler=True,
+        bounce=False,
+        page_set=self))
     # Why: Scroll bounce showing repeated transitions between scrolling and
     # sending synchronous touchmove events.  Should be nearly as fast as
     # scroll baseline.
     self.AddUserStory(EmptyTouchHandlerPage(
-      name='bounce',
-      desktop=False,
-      slow_handler=False,
-      bounce=True,
-      page_set=self))
+        name='bounce',
+        desktop=False,
+        slow_handler=False,
+        bounce=True,
+        page_set=self))
     # Why: Scroll bounce with slow handler, repeated blocking.
     self.AddUserStory(EmptyTouchHandlerPage(
-      name='bounce_slow_handler',
-      desktop=False,
-      slow_handler=True,
-      bounce=True,
-      page_set=self))
-    # Why: Scroll bounce with slow handler on desktop, blocks only once until
+        name='bounce_slow_handler',
+        desktop=False,
+        slow_handler=True,
+        bounce=True,
+        page_set=self))
+      # Why: Scroll bounce with slow handler on desktop, blocks only once until
     # ACK timeout.
     self.AddUserStory(EmptyTouchHandlerPage(
-      name='bounce_desktop_slow_handler',
-      desktop=True,
-      slow_handler=True,
-      bounce=True,
-      page_set=self))
-    # Why: For measuring the latency of scroll-synchronized effects.
+        name='bounce_desktop_slow_handler',
+        desktop=True,
+        slow_handler=True,
+        bounce=True,
+        page_set=self))
+      # Why: For measuring the latency of scroll-synchronized effects.
     self.AddUserStory(SynchronizedScrollOffsetPage(page_set=self))
     # Why: Good examples of poor initial scrolling
     self.AddUserStory(ToughSchedulingCasesPage(
-      'http://www.latimes.com',
-      self))
-    self.AddUserStory(ToughSchedulingCasesPage(
-      'http://m.espn.go.com/nhl/rankings',
-       self))
+        'http://www.latimes.com',

[Sami, 2015/01/27 15:30:37]

Could you move latimes to the new page set too? It's pretty pathological, and
that way tough_scheduling_cases will only consist of synthetic cases which
should make it less noisy.

[picksi, 2015/02/10 18:10:46]

Done.

+        self))