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)) 65
