Delete trace-info.json.

tools/perf/benchmarks/spaceport.py

 # Copyright 2012 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.
 
 """Runs spaceport.io's PerfMarks benchmark."""
 
 import logging
 import os
 
 from telemetry import benchmark
 from telemetry.core import util
 from telemetry.page import page_measurement
 from telemetry.page import page_set
 from telemetry.value import list_of_scalar_values
 from telemetry.value import scalar
 
+DESCRIPTIONS = {
+    'canvasDrawImageFullClear':
+        'Using a canvas element to render. Bitmaps are blitted to the canvas '
+        'using the "drawImage" function and the canvas is fully cleared at '
+        'the beginning of each frame.',
+    'canvasDrawImageFullClearAlign':
+        'Same as canvasDrawImageFullClear except all "x" and "y" values are '
+        'rounded to the nearest integer. This can be more efficient on '
+        'translate on certain browsers.',
+    'canvasDrawImagePartialClear':
+        'Using a canvas element to render. Bitmaps are blitted to the canvas '
+        'using the "drawImage" function and pixels drawn in the last frame '
+        'are cleared to the clear color at the beginning of each frame. '
+        'This is generally slower on hardware accelerated implementations, '
+        'but sometimes faster on CPU-based implementations.',
+    'canvasDrawImagePartialClearAlign':
+        'Same as canvasDrawImageFullClearAlign but only partially clearing '
+        'the canvas each frame.',
+    'css2dBackground':
+        'Using div elements that have a background image specified using CSS '
+        'styles. These div elements are translated, scaled, and rotated using '
+        'CSS-2D transforms.',
+    'css2dImg':
+        'Same as css2dBackground, but using img elements instead of div '
+        'elements.',
+    'css3dBackground':
+        'Same as css2dBackground, but using CSS-3D transforms.',
+    'css3dImg':
+        'Same as css2dImage but using CSS-3D tranforms.',
+}
+
 
 class _SpaceportMeasurement(page_measurement.PageMeasurement):
   def __init__(self):
     super(_SpaceportMeasurement, self).__init__()
 
   def CustomizeBrowserOptions(self, options):
     options.AppendExtraBrowserArgs('--disable-gpu-vsync')
 
   def MeasurePage(self, page, tab, results):
     tab.WaitForJavaScriptExpression(
         '!document.getElementById("start-performance-tests").disabled', 60)
 
     tab.ExecuteJavaScript("""
         window.__results = {};
         window.console.log = function(str) {
             if (!str) return;
             var key_val = str.split(': ');
             if (!key_val.length == 2) return;
             __results[key_val[0]] = key_val[1];
         };
         document.getElementById('start-performance-tests').click();
-    """)
+        """)
 
     num_results = 0
     num_tests_in_spaceport = 24
     while num_results < num_tests_in_spaceport:
       tab.WaitForJavaScriptExpression(
           'Object.keys(window.__results).length > %d' % num_results, 180)
       num_results = tab.EvaluateJavaScript(
           'Object.keys(window.__results).length')
       logging.info('Completed test %d of %d' %
                    (num_results, num_tests_in_spaceport))
 
     result_dict = eval(tab.EvaluateJavaScript(
         'JSON.stringify(window.__results)'))
     for key in result_dict:
       chart, trace = key.split('.', 1)
       results.AddValue(scalar.ScalarValue(
           results.current_page, '%s.%s'% (chart, trace),
           'objects (bigger is better)', float(result_dict[key]),
-          important=False))
+          important=False, description=DESCRIPTIONS.get(chart)))
     results.AddValue(list_of_scalar_values.ListOfScalarValues(
         results.current_page, 'Score', 'objects (bigger is better)',
-                [float(x) for x in result_dict.values()]))
+        [float(x) for x in result_dict.values()],
+        description='Combined score for all parts of the spaceport benchmark.'))
 
 
 # crbug.com/166703: This test frequently times out on Windows.
 @benchmark.Disabled('mac', 'win')
 class Spaceport(benchmark.Benchmark):
   """spaceport.io's PerfMarks benchmark."""
   test = _SpaceportMeasurement
 
   def CreatePageSet(self, options):
     spaceport_dir = os.path.join(util.GetChromiumSrcDir(), 'chrome', 'test',
         'data', 'third_party', 'spaceport')
     ps = page_set.PageSet(file_path=spaceport_dir)
     ps.AddPageWithDefaultRunNavigate('file://index.html')
     return ps