Initial implementation of V8 Top 25 Runtime Stats benchmark

tools/perf/benchmarks/v8_top_25.py

+# Copyright 2016 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.
+

[nednguyen, 2016/11/10 23:04:11]

nits: let merge this to v8.py file

[fmeawad, 2016/11/10 23:52:31]

Done.

+from core import perf_benchmark
+import page_sets
+
+from telemetry.timeline import chrome_trace_category_filter
+from telemetry.web_perf import timeline_based_measurement
+
+
+class _Top25RuntimeStats(perf_benchmark.PerfBenchmark):
+  options = {'pageset_repeat': 1}
+  tag = 'cold'

[nednguyen, 2016/11/10 23:04:11]

what is this tag for?

[fmeawad, 2016/11/10 23:52:31]

Not sure, probably copied from another benchmark, removed.

+
+  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.
+    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):
+    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()