tools/perf/perf_tools/kraken.py

   1 # Copyright (c) 2012 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 from telemetry.core import util
   6 from telemetry.page import page_benchmark
   7
   8 def _Mean(l):
   9   return float(sum(l)) / len(l) if len(l) > 0 else 0.0
  10
  11 class Kraken(page_benchmark.PageBenchmark):
  12   def MeasurePage(self, _, tab, results):
  13     js_is_done = """
  14 document.title.indexOf("Results") != -1 && document.readyState == "complete"
  15 """
  16     def _IsDone():
  17       return bool(tab.EvaluateJavaScript(js_is_done))
  18     util.WaitFor(_IsDone, 500, poll_interval=5)
  19
  20     js_get_results = """
  21 var formElement = document.getElementsByTagName("input")[0];
  22 decodeURIComponent(formElement.value.split("?")[1]);
  23 """
  24     result_dict = eval(tab.EvaluateJavaScript(js_get_results))
  25     total = 0
  26     for key in result_dict:
  27       if key == 'v':
  28         continue
  29       results.Add(key, 'ms', result_dict[key], data_type='unimportant')
  30       total += _Mean(result_dict[key])
  31     results.Add('Total', 'ms', total)