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1 #!/usr/bin/env python | 1 #!/usr/bin/env python |
2 # Copyright (c) 2014 The Chromium Authors. All rights reserved. | 2 # Copyright (c) 2014 The Chromium Authors. All rights reserved. |
3 # Use of this source code is governed by a BSD-style license that can be | 3 # Use of this source code is governed by a BSD-style license that can be |
4 # found in the LICENSE file. | 4 # found in the LICENSE file. |
5 | 5 |
6 """ Generate bench_expectations file from a given set of bench data files. """ | 6 """ Generate bench_expectations file from a given set of bench data files. """ |
7 | 7 |
8 import argparse | 8 import argparse |
9 import bench_util | 9 import bench_util |
10 import os | 10 import os |
11 import re | 11 import re |
12 import sys | 12 import sys |
13 | 13 |
14 # Parameters for calculating bench ranges. | 14 # Parameters for calculating bench ranges. |
15 RANGE_RATIO_UPPER = 1.2 # Ratio of range for upper bounds. | 15 RANGE_RATIO_UPPER = 1.2 # Ratio of range for upper bounds. |
16 RANGE_RATIO_LOWER = 1.8 # Ratio of range for lower bounds. | 16 RANGE_RATIO_LOWER = 2.0 # Ratio of range for lower bounds. |
17 ERR_RATIO = 0.08 # Further widens the range by the ratio of average value. | 17 ERR_RATIO = 0.08 # Further widens the range by the ratio of average value. |
18 ERR_ABS = 0.5 # Adds an absolute error margin to cope with very small benches. | 18 ERR_ABS = 0.5 # Adds an absolute error margin to cope with very small benches. |
19 | 19 |
20 # List of bench configs to monitor. Ignore all other configs. | 20 # List of bench configs to monitor. Ignore all other configs. |
21 CONFIGS_TO_INCLUDE = ['simple_viewport_1000x1000', | 21 CONFIGS_TO_INCLUDE = ['simple_viewport_1000x1000', |
22 'simple_viewport_1000x1000_gpu', | 22 'simple_viewport_1000x1000_gpu', |
23 'simple_viewport_1000x1000_scalar_1.100000', | 23 'simple_viewport_1000x1000_scalar_1.100000', |
24 'simple_viewport_1000x1000_scalar_1.100000_gpu', | 24 'simple_viewport_1000x1000_scalar_1.100000_gpu', |
25 ] | 25 ] |
26 | 26 |
27 # List of flaky SKPs that should be excluded. | 27 # List of flaky SKPs that should be excluded. |
28 SKPS_TO_EXCLUDE = ['desk_chalkboard.skp', | 28 SKPS_TO_EXCLUDE = [ |
29 ] | 29 ] |
30 | 30 |
31 | 31 |
32 def compute_ranges(benches): | 32 def compute_ranges(benches): |
33 """Given a list of bench numbers, calculate the alert range. | 33 """Given a list of bench numbers, calculate the alert range. |
34 | 34 |
35 Args: | 35 Args: |
36 benches: a list of float bench values. | 36 benches: a list of float bench values. |
37 | 37 |
38 Returns: | 38 Returns: |
39 a list of float [lower_bound, upper_bound]. | 39 a list of float [lower_bound, upper_bound]. |
40 """ | 40 """ |
41 minimum = min(benches) | 41 minimum = min(benches) |
42 maximum = max(benches) | 42 maximum = max(benches) |
43 diff = maximum - minimum | 43 diff = maximum - minimum |
44 avg = sum(benches) / len(benches) | 44 avg = sum(benches) / len(benches) |
45 | 45 |
46 return [minimum - diff * RANGE_RATIO_LOWER - avg * ERR_RATIO - ERR_ABS, | 46 return [minimum - diff * RANGE_RATIO_LOWER - avg * ERR_RATIO - ERR_ABS, |
47 maximum + diff * RANGE_RATIO_UPPER + avg * ERR_RATIO + ERR_ABS] | 47 maximum + diff * RANGE_RATIO_UPPER + avg * ERR_RATIO + 2 * ERR_ABS] |
48 | 48 |
49 | 49 |
50 def create_expectations_dict(revision_data_points): | 50 def create_expectations_dict(revision_data_points): |
51 """Convert list of bench data points into a dictionary of expectations data. | 51 """Convert list of bench data points into a dictionary of expectations data. |
52 | 52 |
53 Args: | 53 Args: |
54 revision_data_points: a list of BenchDataPoint objects. | 54 revision_data_points: a list of BenchDataPoint objects. |
55 | 55 |
56 Returns: | 56 Returns: |
57 a dictionary of this form: | 57 a dictionary of this form: |
(...skipping 56 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
114 'expected': expected, | 114 'expected': expected, |
115 'lower_bound': lower_bound, | 115 'lower_bound': lower_bound, |
116 'upper_bound': upper_bound}) | 116 'upper_bound': upper_bound}) |
117 | 117 |
118 with open(args.output_file, 'w') as file_handle: | 118 with open(args.output_file, 'w') as file_handle: |
119 file_handle.write('\n'.join(out_lines)) | 119 file_handle.write('\n'.join(out_lines)) |
120 | 120 |
121 | 121 |
122 if __name__ == "__main__": | 122 if __name__ == "__main__": |
123 main() | 123 main() |
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