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# SPDX-License-Identifier: Apache-2.0
#
# Copyright (C) 2015, ARM Limited and contributors.
#
# 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
import os
import logging
from subprocess import Popen, PIPE
from time import sleep
from android import Screen, System, Workload
# Available test workloads
_jankbench = {
'list_view' : 0,
'image_list_view' : 1,
'shadow_grid' : 2,
'low_hitrate_text' : 3,
'high_hitrate_text' : 4,
'edit_text' : 5,
}
# Regexps for benchmark synchronization
JANKBENCH_BENCHMARK_START_RE = re.compile(
r'ActivityManager: START.*'
'(cmp=com.android.benchmark/.app.RunLocalBenchmarksActivity)'
)
JANKBENCH_ITERATION_COUNT_RE = re.compile(
r'System.out: iteration: (?P<iteration>[0-9]+)'
)
JANKBENCH_ITERATION_METRICS_RE = re.compile(
r'System.out: Mean: (?P<mean>[0-9\.]+)\s+JankP: (?P<junk_p>[0-9\.]+)\s+'
'StdDev: (?P<std_dev>[0-9\.]+)\s+Count Bad: (?P<count_bad>[0-9]+)\s+'
'Count Jank: (?P<count_junk>[0-9]+)'
)
JANKBENCH_BENCHMARK_DONE_RE = re.compile(
r'I BENCH\s+:\s+BenchmarkDone!'
)
JANKBENCH_DB_PATH = '/data/data/com.android.benchmark/databases/'
JANKBENCH_DB_NAME = 'BenchmarkResults'
# The amounts of time to collect energy for each test. Used when USB communication with the device
# is disabled during energy collection to prevent it from interfering with energy sampling. Tests
# may run longer or shorter than the amount of time energy is collected.
JANKBENCH_ENERGY_DURATIONS = {
'list_view' : 30,
'image_list_view' : 30,
'shadow_grid' : 30,
'low_hitrate_text' : 30,
'high_hitrate_text' : 30,
'edit_text' : 9,
}
class Jankbench(Workload):
"""
Android Jankbench workload
"""
# Package required by this workload
package = 'com.android.benchmark'
def __init__(self, test_env):
super(Jankbench, self).__init__(test_env)
self._log = logging.getLogger('Jankbench')
self._log.debug('Workload created')
# Set of output data reported by Jankbench
self.db_file = None
def run(self, out_dir, test_name, iterations, collect):
"""
Run Jankbench workload for a number of iterations.
Returns a collection of results.
:param out_dir: Path to experiment directory on the host
where to store results.
:type out_dir: str
:param test_name: Name of the test to run
:type test_name: str
:param iterations: Number of iterations for the named test
:type iterations: int
:param collect: Specifies what to collect. Possible values:
- 'energy'
- 'systrace'
- 'ftrace'
- any combination of the above as a single space-separated string.
:type collect: list(str)
"""
# Keep track of mandatory parameters
self.out_dir = out_dir
self.collect = collect
# Setup test id
try:
test_id = _jankbench[test_name]
except KeyError:
raise ValueError('Jankbench test [%s] not supported', test_name)
# Unlock device screen (assume no password required)
Screen.unlock(self._target)
# Close and clear application
System.force_stop(self._target, self.package, clear=True)
# Set airplane mode
System.set_airplane_mode(self._target, on=True)
# Set min brightness
Screen.set_brightness(self._target, auto=False, percent=0)
# Force screen in PORTRAIT mode
Screen.set_orientation(self._target, portrait=True)
# Clear logcat
self._target.clear_logcat()
self._log.debug('Start Jank Benchmark [%d:%s]', test_id, test_name)
test_cmd = 'am start -n "com.android.benchmark/.app.RunLocalBenchmarksActivity" '\
'--eia "com.android.benchmark.EXTRA_ENABLED_BENCHMARK_IDS" {0} '\
'--ei "com.android.benchmark.EXTRA_RUN_COUNT" {1}'\
.format(test_id, iterations)
self._log.info(test_cmd)
self._target.execute(test_cmd);
if 'energy' in collect:
# Start collecting energy readings
self.tracingStart()
self._log.debug('Benchmark started!')
self._log.info('Running energy meter for {} seconds'
.format(iterations * JANKBENCH_ENERGY_DURATIONS[test_name]))
# Sleep for the approximate amount of time the test should take to run the specified
# number of iterations.
for i in xrange(0, iterations):
sleep(JANKBENCH_ENERGY_DURATIONS[test_name])
self._log.debug('Iteration: %2d', i + 1)
# Stop collecting energy. The test may or may not be done at this point.
self._log.debug('Benchmark done!')
self.tracingStop()
else:
# Parse logcat output lines
logcat_cmd = self._adb(
'logcat ActivityManager:* System.out:I *:S BENCH:*'\
.format(self._target.adb_name))
self._log.info(logcat_cmd)
logcat = Popen(logcat_cmd, shell=True, stdout=PIPE)
self._log.debug('Iterations:')
while True:
# read next logcat line (up to max 1024 chars)
message = logcat.stdout.readline(1024)
# Benchmark start trigger
match = JANKBENCH_BENCHMARK_START_RE.search(message)
if match:
self.tracingStart()
self._log.debug('Benchmark started!')
# Benchmark completed trigger
match = JANKBENCH_BENCHMARK_DONE_RE.search(message)
if match:
self._log.debug('Benchmark done!')
self.tracingStop()
break
# Iteration completed
match = JANKBENCH_ITERATION_COUNT_RE.search(message)
if match:
self._log.debug('Iteration: %2d',
int(match.group('iteration'))+1)
# Iteration metrics
match = JANKBENCH_ITERATION_METRICS_RE.search(message)
if match:
self._log.info(' Mean: %7.3f JankP: %7.3f StdDev: %7.3f Count Bad: %4d Count Jank: %4d',
float(match.group('mean')),
float(match.group('junk_p')),
float(match.group('std_dev')),
int(match.group('count_bad')),
int(match.group('count_junk')))
# Wait until the database file is available
db_adb = JANKBENCH_DB_PATH + JANKBENCH_DB_NAME
while (db_adb not in self._target.execute('ls {}'.format(db_adb), check_exit_code=False)):
sleep(1)
# Get results
self.db_file = os.path.join(out_dir, JANKBENCH_DB_NAME)
self._target.pull(db_adb, self.db_file)
# Stop the benchmark app
System.force_stop(self._target, self.package, clear=True)
# Go back to home screen
System.home(self._target)
# Reset initial setup
# Set orientation back to auto
Screen.set_orientation(self._target, auto=True)
# Turn off airplane mode
System.set_airplane_mode(self._target, on=False)
# Set brightness back to auto
Screen.set_brightness(self._target, auto=True)
# vim :set tabstop=4 shiftwidth=4 expandtab
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