rendering: Remove _per_second metrics.

Remove the various _per_second metrics in favour of the _per_frame
metrics. (see linked bug for more details)

BUG=888114

Change-Id: I95c8b547cfdf03414f9abaec7d32ceee907df687
Reviewed-on: https://chromium-review.googlesource.com/1235340Reviewed-by: Victor Miura <vmiura@chromium.org>
Reviewed-by: Ned Nguyen <nednguyen@google.com>
Commit-Queue: Sadrul Chowdhury <sadrul@chromium.org>
Cr-Commit-Position: refs/heads/master@{#593788}

tools/perf/measurements/rendering_unittest.py

@@ -58,7 +58,5 @@ class RenderingUnitTest(page_test_test_case.PageTestTestCase):
     self.assertGreater(num_samples.get('frame_times', 0), 1)
     self.assertGreater(num_samples.get('percentage_smooth', 0), 1)
     for thread_group in THREAD_TIMES_THREAD_GROUPS:
-      self.assertGreater(
-          num_samples.get('thread_%s_cpu_time_per_second' % thread_group, 0), 1)
       self.assertGreater(
           num_samples.get('thread_%s_cpu_time_per_frame' % thread_group, 0), 1)

tools/perf/measurements/thread_times_unittest.py

@@ -37,9 +37,8 @@ class ThreadTimesUnitTest(page_test_test_case.PageTestTestCase):
     results = self.RunMeasurement(measurement, ps, options=timeline_options)
     self.assertFalse(results.had_failures)
 
-    for interval in timeline.IntervalNames:
     for category in timeline.TimelineThreadCategories.values():
-        cpu_time_name = timeline.ThreadCpuTimeResultName(category, interval)
+      cpu_time_name = timeline.ThreadCpuTimeResultName(category)
       cpu_time = results.FindAllPageSpecificValuesNamed(cpu_time_name)
       self.assertEquals(len(cpu_time), 1)
 
@@ -52,10 +51,9 @@ class ThreadTimesUnitTest(page_test_test_case.PageTestTestCase):
 
     main_thread = 'renderer_main'
     expected_trace_categories = ['blink', 'cc', 'idle']
-    for interval in timeline.IntervalNames:
     for trace_category in expected_trace_categories:
       value_name = timeline.ThreadDetailResultName(
-            main_thread, interval, trace_category)
+          main_thread, trace_category)
       values = results.FindAllPageSpecificValuesNamed(value_name)
       self.assertEquals(len(values), 1)
 

tools/perf/metrics/timeline.py

@@ -46,8 +46,6 @@ FrameTraceName = "Graphics.Pipeline"
 FrameTraceStepName = "GenerateCompositorFrame"
 FrameTraceThreadName = "renderer_compositor"
 
-IntervalNames = ["frame", "second"]
-
 
 def Rate(numerator, denominator):
   return DivideIfPossibleOrZero(numerator, denominator)
@@ -79,42 +77,22 @@ def ThreadCategoryName(thread_name):
   return thread_category
 
 
-def ThreadCpuTimeResultName(thread_category, interval_name):
+def ThreadCpuTimeResultName(thread_category):
   # This isn't a good name, but I don't want to change it and lose continuity.
-  return "thread_" + thread_category + "_cpu_time_per_" + interval_name
+  return "thread_" + thread_category + "_cpu_time_per_frame"
 
 
-def ThreadTasksResultName(thread_category, interval_name):
-  return "tasks_per_" + interval_name + "_" + thread_category
+def ThreadTasksResultName(thread_category):
+  return "tasks_per_frame_" + thread_category
 
 
 def ThreadMeanFrameTimeResultName(thread_category):
   return "mean_frame_time_" + thread_category
 
 
-def ThreadDetailResultName(thread_category, interval_name, detail):
+def ThreadDetailResultName(thread_category, detail):
   detail_sanitized = detail.replace(".", "_")
-  interval_sanitized = ""
-  # Special-case per-frame detail names to preserve continuity.
-  if interval_name == "frame":
-    interval_sanitized = ""
-  else:
-    interval_sanitized = "_per_" + interval_name
-  return (
-      "thread_" + thread_category + interval_sanitized + "|" + detail_sanitized)
-
-
-def ThreadCpuTimeUnits(interval_name):
-  if interval_name == "second":
-    return "%"
-  return "ms"
-
-
-def ThreadCpuTimeValue(ms_cpu_time_per_interval, interval_name):
-  # When measuring seconds of CPU time per second of system time, report a %.
-  if interval_name == "second":
-    return (ms_cpu_time_per_interval / 1000.0) * 100.0
-  return ms_cpu_time_per_interval
+  return "thread_" + thread_category + "|" + detail_sanitized
 
 
 class ResultsForThread(object):
@@ -165,20 +143,20 @@ class ResultsForThread(object):
     self.toplevel_slices.extend(self.SlicesInActions(thread.toplevel_slices))
 
   # Reports cpu-time per interval and tasks per interval.
-  def AddResults(self, num_intervals, interval_name, results):
+  def AddResults(self, num_intervals, results):
     cpu_per_interval = Rate(self.cpu_time, num_intervals)
     tasks_per_interval = Rate(len(self.toplevel_slices), num_intervals)
     results.AddValue(scalar.ScalarValue(
         results.current_page,
-        ThreadCpuTimeResultName(self.name, interval_name),
-        ThreadCpuTimeUnits(interval_name),
-        ThreadCpuTimeValue(cpu_per_interval, interval_name)))
+        ThreadCpuTimeResultName(self.name),
+        "ms",
+        cpu_per_interval))
     results.AddValue(scalar.ScalarValue(
         results.current_page,
-        ThreadTasksResultName(self.name, interval_name),
+        ThreadTasksResultName(self.name),
         "tasks", tasks_per_interval))
 
-  def AddDetailedResults(self, num_intervals, interval_name, results):
+  def AddDetailedResults(self, num_intervals, results):
     slices_by_category = collections.defaultdict(list)
     for s in self.all_slices:
       slices_by_category[s.category].append(s)
@@ -189,17 +167,17 @@ class ResultsForThread(object):
       self_time_per_interval = Rate(self_time, num_intervals)
       results.AddValue(scalar.ScalarValue(
           results.current_page,
-          ThreadDetailResultName(self.name, interval_name, category),
-          ThreadCpuTimeUnits(interval_name),
-          ThreadCpuTimeValue(self_time_per_interval, interval_name)))
+          ThreadDetailResultName(self.name, category),
+          "ms",
+          self_time_per_interval))
     all_measured_time = sum(all_self_times)
     idle_time = max(0, self.all_action_time - all_measured_time)
     idle_time_per_interval = Rate(idle_time, num_intervals)
     results.AddValue(scalar.ScalarValue(
         results.current_page,
-        ThreadDetailResultName(self.name, interval_name, "idle"),
-        ThreadCpuTimeUnits(interval_name),
-        ThreadCpuTimeValue(idle_time_per_interval, interval_name)))
+        ThreadDetailResultName(self.name, "idle"),
+        "ms",
+        idle_time_per_interval))
 
   def CountTracesWithNameAndArg(self, trace_name, step):
     count = 0
@@ -243,21 +221,14 @@ class ThreadTimesTimelineMetric(timeline_based_metric.TimelineBasedMetric):
     num_frames = frame_rate_thread.CountTracesWithNameAndArg(FrameTraceName,
         FrameTraceStepName)
 
-    # Calculate the interaction's duration.
-    all_threads = thread_category_results["total_all"]
-    num_seconds = all_threads.all_action_time / 1000.0
-
     # Report the desired results and details for each interval type.
-    intervals = [("frame", num_frames), ("second", num_seconds)]
-    for (interval_name, num_intervals) in intervals:
     for thread_results in thread_category_results.values():
       if thread_results.name in self.results_to_report:
-          thread_results.AddResults(num_intervals, interval_name, results)
+        thread_results.AddResults(num_frames, results)
       # TODO(nduca): When generic results objects are done, this special case
       # can be replaced with a generic UI feature.
       if thread_results.name in self.details_to_report:
-          thread_results.AddDetailedResults(
-              num_intervals, interval_name, results)
+        thread_results.AddDetailedResults(num_frames, results)
 
     # Report mean frame time for the frame rate thread. We could report other
     # frame rates (e.g. renderer_main) but this might get confusing.

tools/perf/metrics/timeline_unittest.py

@@ -36,7 +36,7 @@ class ThreadTimesTimelineMetricUnittest(unittest.TestCase):
     # Test that all result thread categories exist
     for name in timeline.TimelineThreadCategories.values():
       results.GetPageSpecificValueNamed(
-          timeline.ThreadCpuTimeResultName(name, 'frame'))
+          timeline.ThreadCpuTimeResultName(name))
 
   def testBasic(self):
     model = model_module.TimelineModel()
@@ -75,26 +75,13 @@ class ThreadTimesTimelineMetricUnittest(unittest.TestCase):
     cc_thread = 'renderer_compositor'
     assert_results = [
         (timeline.ThreadMeanFrameTimeResultName(cc_thread), 'ms', 10.0),
-        (timeline.ThreadTasksResultName(main_thread, 'frame'), 'tasks', 0.5),
-        (timeline.ThreadTasksResultName(main_thread, 'second'), 'tasks', 50.0),
-        (timeline.ThreadTasksResultName(cc_thread, 'frame'), 'tasks', 1.0),
-        (timeline.ThreadTasksResultName(cc_thread, 'second'), 'tasks', 100.0),
-        (timeline.ThreadCpuTimeResultName(main_thread, 'frame'), 'ms', 9.75),
-        (timeline.ThreadCpuTimeResultName(main_thread, 'second'), '%', 97.5),
-        (timeline.ThreadCpuTimeResultName(cc_thread, 'frame'), 'ms', 1.0),
-        (timeline.ThreadCpuTimeResultName(cc_thread, 'second'), '%', 10.0),
-        (timeline.ThreadDetailResultName(main_thread, 'frame', 'cat1'),
-         'ms', 9.5),
-        (timeline.ThreadDetailResultName(main_thread, 'second', 'cat1'),
-         '%', 95.0),
-        (timeline.ThreadDetailResultName(main_thread, 'frame', 'cat2'),
-         'ms', 0.5),
-        (timeline.ThreadDetailResultName(main_thread, 'second', 'cat2'),
-         '%', 5.0),
-        (timeline.ThreadDetailResultName(
-            main_thread, 'frame', 'idle'), 'ms', 0),
-        (timeline.ThreadDetailResultName(
-            main_thread, 'second', 'idle'), '%', 0)
+        (timeline.ThreadTasksResultName(main_thread), 'tasks', 0.5),
+        (timeline.ThreadTasksResultName(cc_thread), 'tasks', 1.0),
+        (timeline.ThreadCpuTimeResultName(main_thread), 'ms', 9.75),
+        (timeline.ThreadCpuTimeResultName(cc_thread), 'ms', 1.0),
+        (timeline.ThreadDetailResultName(main_thread, 'cat1'), 'ms', 9.5),
+        (timeline.ThreadDetailResultName(main_thread, 'cat2'), 'ms', 0.5),
+        (timeline.ThreadDetailResultName(main_thread, 'idle'), 'ms', 0),
     ]
     for name, unit, value in assert_results:
       results.AssertHasPageSpecificScalarValue(name, unit, value)
@@ -129,10 +116,7 @@ class ThreadTimesTimelineMetricUnittest(unittest.TestCase):
 
     # Test a couple specific results.
     assert_results = [
-        (timeline.ThreadCpuTimeResultName(
-            'renderer_main', 'frame'), 'ms', 9.0),
-        (timeline.ThreadCpuTimeResultName(
-            'renderer_main', 'second'), '%', 45.0),
+        (timeline.ThreadCpuTimeResultName('renderer_main'), 'ms', 9.0),
     ]
     for name, unit, value in assert_results:
       results.AssertHasPageSpecificScalarValue(name, unit, value)