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1 # Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 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 import re | 5 import re |
6 | 6 |
7 import android_commands | 7 import android_commands |
8 import json | 8 import json |
9 import math | 9 import math |
10 | 10 |
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101 value, | 101 value, |
102 units) | 102 units) |
103 else: | 103 else: |
104 assert(result_type in ['histogram', 'unimportant-histogram']) | 104 assert(result_type in ['histogram', 'unimportant-histogram']) |
105 assert isinstance(values, list) | 105 assert isinstance(values, list) |
106 # The histograms can only be printed individually, there's no computation | 106 # The histograms can only be printed individually, there's no computation |
107 # across different histograms. | 107 # across different histograms. |
108 assert len(values) == 1 | 108 assert len(values) == 1 |
109 value = values[0] | 109 value = values[0] |
110 measurement += '.' + trace_name | 110 measurement += '.' + trace_name |
111 output = '%s%s: %s=%s' % ( | 111 output = '%s%s: %s= %s' % ( |
112 RESULT_TYPES[result_type], | 112 RESULT_TYPES[result_type], |
113 _EscapePerfResult(measurement), | 113 _EscapePerfResult(measurement), |
114 _EscapePerfResult(measurement), | 114 _EscapePerfResult(measurement), |
115 value) | 115 value) |
116 avg, sd = GeomMeanAndStdDevFromHistogram(value) | 116 avg, sd = GeomMeanAndStdDevFromHistogram(value) |
117 | 117 |
118 if avg: | 118 if avg: |
119 output += '\nAvg %s: %f%s' % (measurement, avg, units) | 119 output += '\nAvg %s: %f%s' % (measurement, avg, units) |
120 if sd: | 120 if sd: |
121 output += '\nSd %s: %f%s' % (measurement, sd, units) | 121 output += '\nSd %s: %f%s' % (measurement, sd, units) |
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156 def TearDown(self): | 156 def TearDown(self): |
157 """Tears down performance tests.""" | 157 """Tears down performance tests.""" |
158 if self._original_scaling_governor: | 158 if self._original_scaling_governor: |
159 self._SetScalingGovernorInternal(self._original_scaling_governor) | 159 self._SetScalingGovernorInternal(self._original_scaling_governor) |
160 self._original_scaling_governor = None | 160 self._original_scaling_governor = None |
161 | 161 |
162 def _SetScalingGovernorInternal(self, value): | 162 def _SetScalingGovernorInternal(self, value): |
163 for cpu in range(self._num_cpus): | 163 for cpu in range(self._num_cpus): |
164 self._adb.RunShellCommand( | 164 self._adb.RunShellCommand( |
165 ('echo %s > ' + PerfTestSetup._SCALING_GOVERNOR) % (value, cpu)) | 165 ('echo %s > ' + PerfTestSetup._SCALING_GOVERNOR) % (value, cpu)) |
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