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Side by Side Diff: build/android/pylib/perf_tests_helper.py

Issue 11568031: Telemetry: Yet another histogram printing fix. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Created 8 years ago
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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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