# Source code for wlauto.workloads.benchmarkpi

# Copyright 2013-2015 ARM Limited
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
import re
from wlauto import AndroidUiAutoBenchmark
[docs]class BenchmarkPi(AndroidUiAutoBenchmark):
name = 'benchmarkpi'
description = """
Measures the time the target device takes to run and complete the Pi
calculation algorithm.
http://androidbenchmark.com/howitworks.php
from the website:
The whole idea behind this application is to use the same Pi calculation
algorithm on every Android Device and check how fast that proccess is.
Better calculation times, conclude to faster Android devices. This way you
can also check how lightweight your custom made Android build is. Or not.
As Pi is an irrational number, Benchmark Pi does not calculate the actual Pi
number, but an approximation near the first digits of Pi over the same
calculation circles the algorithms needs.
So, the number you are getting in miliseconds is the time your mobile device
takes to run and complete the Pi calculation algorithm resulting in a
approximation of the first Pi digits.
"""
package = 'gr.androiddev.BenchmarkPi'
activity = '.BenchmarkPi'
summary_metrics = ['pi calculation']
regex = re.compile('You calculated Pi in ([0-9]+)')
[docs] def update_result(self, context):
super(BenchmarkPi, self).update_result(context)
result = None
with open(self.logcat_log) as fh:
for line in fh:
match = self.regex.search(line)
if match:
result = int(match.group(1))
if result is not None:
context.result.add_metric('pi calculation', result,
'Milliseconds', lower_is_better=True)