Tab Switching Benchmark for ChromeOS

tools/perf/contrib/cros_benchmarks/tab_switching_bench.py

+# Copyright 2017 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 perf_benchmark
+
+from contrib.cros_benchmarks import tab_switching_measure
+from contrib.cros_benchmarks import tab_switching_stories
+from telemetry import benchmark
+from telemetry import story
+
+
+@benchmark.Owner(emails=['vovoy@chromium.org'],
+                 component='OS>Performance')
+@benchmark.Enabled('chromeos')
+class CrosTabSwitchingTypical24(perf_benchmark.PerfBenchmark):
+  """Measuring the tab switching performance when there are many tabs.
+
+  The script opens 24 pages in 24 different tabs, waits for them to load,
+  and then switches to each tabs and measures the tabs paint time. The 24
+  pages were chosen from Alexa top ranking sites. Tab paint time is the
+  time between when a tab was requested to be shwon, and when first paint
+  occurred.
+
+  --tabset-repeat=N: Multiply the tab count by N to open more tabs.
+  The following usage example opens 120 tabs.
+  $ ./run_benchmark --browser=cros-chrome --remote=DUT_IP
+  cros_tab_switching.typical_24 --tabset-repeat=5
+  """
+  test = tab_switching_measure.CrosTabSwitchingMeasurement
+
+  @classmethod
+  def AddBenchmarkCommandLineArgs(cls, parser):
+    parser.add_option('--tabset-repeat', type='int', default=1,
+                      help='repeat tab page set')
+
+  def CreateStorySet(self, options):
+    story_set = story.StorySet(
+        archive_data_file='data/tab_switching.json',
+        base_dir=os.path.dirname(os.path.abspath(__file__)),
+        cloud_storage_bucket=story.PARTNER_BUCKET)
+    story_set.AddStory(tab_switching_stories.CrosMultiTabTypical24Story(
+        story_set, options.tabset_repeat))
+    return story_set
+
+  @classmethod
+  def Name(cls):
+    return 'cros_tab_switching.typical_24'