tools/perf/measurements/record_per_area.py

   1 # Copyright 2013 The Chromium Authors. All rights reserved.
   2 # Use of this source code is governed by a BSD-style license that can be
   3 # found in the LICENSE file.
   4
   5 import time
   6
   7 from measurements import smoothness
   8 from telemetry.page import page_test
   9 from telemetry.value import scalar
  10
  11
  12 class RecordPerArea(page_test.PageTest):
  13   def __init__(self):
  14     super(RecordPerArea, self).__init__('', True)
  15
  16   def AddCommandLineArgs(self, parser):
  17     parser.add_option('--start-wait-time', type='float',
  18                       default=2,
  19                       help='Wait time before the benchmark is started '
  20                       '(must be long enought to load all content)')
  21
  22   def CustomizeBrowserOptions(self, options):
  23     smoothness.Smoothness.CustomizeBrowserOptions(options)
  24     options.AppendExtraBrowserArgs([
  25         '--enable-impl-side-painting',
  26         '--enable-threaded-compositing',
  27         '--enable-gpu-benchmarking'
  28     ])
  29
  30   def ValidateAndMeasurePage(self, page, tab, results):
  31     # Wait until the page has loaded and come to a somewhat steady state.
  32     # Needs to be adjusted for every device (~2 seconds for workstation).
  33     time.sleep(self.options.start_wait_time)
  34
  35     # Enqueue benchmark
  36     tab.ExecuteJavaScript("""
  37         window.benchmark_results = {};
  38         window.benchmark_results.done = false;
  39         chrome.gpuBenchmarking.runMicroBenchmark(
  40             "picture_record_benchmark",
  41             function(value) {
  42               window.benchmark_results.done = true;
  43               window.benchmark_results.results = value;
  44             }, [{width: 1, height: 1},
  45                 {width: 250, height: 250},
  46                 {width: 500, height: 500},
  47                 {width: 750, height: 750},
  48                 {width: 1000, height: 1000},
  49                 {width: 256, height: 1024},
  50                 {width: 1024, height: 256}]);
  51     """)
  52
  53     tab.WaitForJavaScriptExpression('window.benchmark_results.done', 300)
  54
  55     all_data = tab.EvaluateJavaScript('window.benchmark_results.results')
  56     for data in all_data:
  57       width = data['width']
  58       height = data['height']
  59       area = width * height
  60       time_ms = data['time_ms']
  61
  62       results.AddValue(scalar.ScalarValue(
  63           results.current_page, 'area_%07d_%dx%d' % (area, width, height),
  64           'ms', time_ms))