Initial implementation of V8 Top 25 Runtime Stats benchmark

tools/perf/benchmarks/v8.py

 # 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 os
 
 from core import path_util
 from core import perf_benchmark
 from page_sets import google_pages
 
 from benchmarks import v8_helper
@@ skipping 210 matching lines @@
       return True
     # http://crbug.com/623576
     if (possible_browser.platform.GetDeviceTypeName() == 'Nexus 5' or
         possible_browser.platform.GetDeviceTypeName() == 'Nexus 7'):
       return True
     return False
 
   @classmethod
   def ShouldTearDownStateAfterEachStoryRun(cls):
     return True
+
+
+class _Top25RuntimeStats(perf_benchmark.PerfBenchmark):
+  options = {'pageset_repeat': 1}
+
+  def CreateTimelineBasedMeasurementOptions(self):
+    cat_filter = chrome_trace_category_filter.ChromeTraceCategoryFilter(
+        filter_string='blink.console,navigation,blink.user_timing,loading')
+
+    # Below categories are needed for first-meaningful-paint computation.

[nednguyen, 2016/11/11 00:06:09]

You no longer need these two for FMP. Maybe just reuse page_cycler_v2.
TimelineBasedMeasurementOptionsForLoadingMetric  in
https://cs.chromium.org/chromium/src/tools/perf/benchmarks/page_cycler_v2.py?...

[fmeawad, 2016/11/11 01:06:08]

Copied the loadingMetric version, and added a TODO

+    cat_filter.AddDisabledByDefault('disabled-by-default-blink.debug.layout')
+    cat_filter.AddIncludedCategory('devtools.timeline')
+
+    # Below categories are needed for time-to-interactive computation.
+    cat_filter.AddIncludedCategory('toplevel')
+
+    # V8 needed categories
+    cat_filter.AddIncludedCategory('v8')
+    cat_filter.AddDisabledByDefault('disabled-by-default-v8.runtime_stats')
+
+    tbm_options = timeline_based_measurement.Options(
+        overhead_level=cat_filter)
+    tbm_options.SetTimelineBasedMetrics(['runtimeStatsMetric'])
+    return tbm_options
+
+  @classmethod
+  def ShouldDisable(cls, possible_browser):
+    if possible_browser.browser_type == 'reference':
+      return True
+    return False
+
+  @classmethod
+  def ShouldTearDownStateAfterEachStoryRun(cls):

[nednguyen, 2016/11/11 00:06:09]

You don't need to override this since it's True by default

[fmeawad, 2016/11/11 01:06:09]

Done.

+    return True
+
+
+class V8Top25RuntimeStats(_Top25RuntimeStats):
+  """Runtime Stats benchmark for a 25 top V8 web pages.
+
+  Designed to represent a mix between top websites and a set of pages that
+  have unique V8 characteristics.
+  """
+
+  @classmethod
+  def Name(cls):
+    return 'v8.runtime_stats.top_25'
+
+  def CreateStorySet(self, options):
+    return page_sets.V8Top25StorySet()