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| 1 # Copyright 2014 The Chromium Authors. All rights reserved. | 1 # Copyright 2014 The Chromium Authors. All rights reserved. |
| 2 # Use of this source code is governed by a BSD-style license that can be | 2 # Use of this source code is governed by a BSD-style license that can be |
| 3 # found in the LICENSE file. | 3 # found in the LICENSE file. |
| 4 | 4 |
| 5 """Runs Apple's JetStream benchmark. | 5 """Runs Apple's JetStream benchmark. |
| 6 | 6 |
| 7 JetStream combines a variety of JavaScript benchmarks, covering a variety of | 7 JetStream combines a variety of JavaScript benchmarks, covering a variety of |
| 8 advanced workloads and programming techniques, and reports a single score that | 8 advanced workloads and programming techniques, and reports a single score that |
| 9 balances them using geometric mean. | 9 balances them using geometric mean. |
| 10 | 10 |
| 11 Each benchmark measures a distinct workload, and no single optimization | 11 Each benchmark measures a distinct workload, and no single optimization |
| 12 technique is sufficient to speed up all benchmarks. Latency tests measure that | 12 technique is sufficient to speed up all benchmarks. Latency tests measure that |
| 13 a web application can start up quickly, ramp up to peak performance quickly, | 13 a web application can start up quickly, ramp up to peak performance quickly, |
| 14 and run smoothly without interruptions. Throughput tests measure the sustained | 14 and run smoothly without interruptions. Throughput tests measure the sustained |
| 15 peak performance of a web application, ignoring ramp-up time and spikes in | 15 peak performance of a web application, ignoring ramp-up time and spikes in |
| 16 smoothness. Some benchmarks demonstrate tradeoffs, and aggressive or | 16 smoothness. Some benchmarks demonstrate tradeoffs, and aggressive or |
| 17 specialized optimization for one benchmark might make another benchmark slower. | 17 specialized optimization for one benchmark might make another benchmark slower. |
| 18 """ | 18 """ |
| 19 | 19 |
| 20 import json | 20 import json |
| 21 import os | 21 import os |
| 22 | 22 |
| 23 from telemetry import test | 23 from telemetry import benchmark |
| 24 from telemetry.page import page_measurement | 24 from telemetry.page import page_measurement |
| 25 from telemetry.page import page_set | 25 from telemetry.page import page_set |
| 26 from telemetry.util import statistics | 26 from telemetry.util import statistics |
| 27 from telemetry.value import scalar | 27 from telemetry.value import scalar |
| 28 | 28 |
| 29 | 29 |
| 30 class _JetstreamMeasurement(page_measurement.PageMeasurement): | 30 class _JetstreamMeasurement(page_measurement.PageMeasurement): |
| 31 def __init__(self): | 31 def __init__(self): |
| 32 super(_JetstreamMeasurement, self).__init__() | 32 super(_JetstreamMeasurement, self).__init__() |
| 33 | 33 |
| (...skipping 28 matching lines...) Expand all Loading... |
| 62 for k, v in result.iteritems(): | 62 for k, v in result.iteritems(): |
| 63 results.Add(k.replace('.', '_'), 'score', v['result'], | 63 results.Add(k.replace('.', '_'), 'score', v['result'], |
| 64 data_type='unimportant') | 64 data_type='unimportant') |
| 65 # Collect all test scores to compute geometric mean. | 65 # Collect all test scores to compute geometric mean. |
| 66 all_scores.extend(v['result']) | 66 all_scores.extend(v['result']) |
| 67 total = statistics.GeometricMean(all_scores) | 67 total = statistics.GeometricMean(all_scores) |
| 68 results.AddSummaryValue( | 68 results.AddSummaryValue( |
| 69 scalar.ScalarValue(None, 'Score', 'score', total)) | 69 scalar.ScalarValue(None, 'Score', 'score', total)) |
| 70 | 70 |
| 71 | 71 |
| 72 @test.Disabled('android', 'xp') # crbug.com/381742 | 72 @benchmark.Disabled('android', 'xp') # crbug.com/381742 |
| 73 class Jetstream(test.Test): | 73 class Jetstream(benchmark.Benchmark): |
| 74 test = _JetstreamMeasurement | 74 test = _JetstreamMeasurement |
| 75 | 75 |
| 76 def CreatePageSet(self, options): | 76 def CreatePageSet(self, options): |
| 77 ps = page_set.PageSet( | 77 ps = page_set.PageSet( |
| 78 archive_data_file='../page_sets/data/jetstream.json', | 78 archive_data_file='../page_sets/data/jetstream.json', |
| 79 make_javascript_deterministic=False, | 79 make_javascript_deterministic=False, |
| 80 file_path=os.path.abspath(__file__)) | 80 file_path=os.path.abspath(__file__)) |
| 81 ps.AddPageWithDefaultRunNavigate('http://browserbench.org/JetStream/') | 81 ps.AddPageWithDefaultRunNavigate('http://browserbench.org/JetStream/') |
| 82 return ps | 82 return ps |
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