mirror of
https://github.com/ARM-software/workload-automation.git
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67 lines
2.6 KiB
Python
67 lines
2.6 KiB
Python
# Copyright 2013-2015 ARM Limited
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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# pylint: disable=E1101,W0201,E0203
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import re
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from wlauto import AndroidUiAutoBenchmark, Parameter
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class RealLinpack(AndroidUiAutoBenchmark):
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name = 'real-linpack'
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description = """
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This version of `Linpack <http://en.wikipedia.org/wiki/LINPACK_benchmarks>`
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was developed by Dave Butcher. RealLinpack tries to find the number of threads
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that give you the maximum linpack score.
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RealLinpack runs 20 runs of linpack for each number of threads and
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calculates the mean and confidence. It stops when the
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score's confidence interval drops below the current best score
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interval. That is, when (current_score + confidence) < (best_score -
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best_score_confidence)
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"""
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package = 'com.arm.RealLinpack'
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activity = '.RealLinpackActivity'
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parameters = [
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Parameter('max_threads', kind=int, default=16, constraint=lambda x: x > 0,
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description='The maximum number of threads that real linpack will try.'),
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]
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def __init__(self, device, **kwargs):
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super(RealLinpack, self).__init__(device, **kwargs)
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self.uiauto_params['max_threads'] = self.max_threads
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self.run_timeout = 120 + 120 * self.max_threads # a base of 2 minutes plus 2 minutes for each thread
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def update_result(self, context):
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super(RealLinpack, self).update_result(context)
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score_regex = re.compile(r'Optimum.*threads:\s*([0-9])+.*score:\s*([0-9]+\.[0-9]+).*MFLOPS')
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match_found = False
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with open(self.logcat_log) as logcat_file:
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for line in logcat_file:
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match = re.search(score_regex, line)
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if match:
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number_of_threads = match.group(1)
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score = match.group(2)
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context.result.add_metric('optimal number of threads', number_of_threads, None)
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context.result.add_metric('score', score, 'MFLOPS')
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match_found = True
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break
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if not match_found:
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self.logger.warning('Failed To collect results for real linpack')
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