tests/benchmarks/android_youtube.py: initial implementation
This provides an example of how to customize and execute an
android youtube workload.
Signed-off-by: Ionela Voinescu <ionela.voinescu@arm.com>
diff --git a/tests/benchmarks/android_youtube.py b/tests/benchmarks/android_youtube.py
new file mode 100755
index 0000000..e09ca7f
--- /dev/null
+++ b/tests/benchmarks/android_youtube.py
@@ -0,0 +1,189 @@
+#!/usr/bin/python
+
+import os
+from time import sleep
+
+# The workload class MUST be loaded before the LisaBenchmark
+from android import Workload
+from android import LisaBenchmark
+
+from devlib.exception import TargetError
+
+class YouTubeTest(LisaBenchmark):
+
+ bm_conf = {
+
+ # Target platform and board
+ "platform" : 'android',
+
+ # Define devlib modules to load
+ "modules" : [
+ 'cpufreq',
+ ],
+
+ # FTrace events to collect for all the tests configuration which have
+ # the "ftrace" flag enabled
+ "ftrace" : {
+ "events" : [
+ "sched_switch",
+ "sched_overutilized",
+ "sched_contrib_scale_f",
+ "sched_load_avg_cpu",
+ "sched_load_avg_task",
+ "sched_tune_tasks_update",
+ "sched_boost_cpu",
+ "sched_boost_task",
+ "sched_energy_diff",
+ "cpu_frequency",
+ "cpu_idle",
+ "cpu_capacity",
+ ],
+ "buffsize" : 10 * 1024,
+ },
+
+ # Default EnergyMeter Configuration
+ "emeter" : {
+ "instrument" : "acme",
+ "channel_map" : {
+ "Device0" : 0,
+ }
+ },
+
+ # Tools required by the experiments
+ "tools" : [ 'trace-cmd' ],
+
+ # Default results folder
+ "results_dir" : "AndroidYouTube",
+
+ }
+
+ # Android Workload to run
+ bm_name = 'YouTube'
+
+ # Default products to be collected
+ bm_collect = 'ftrace energy'
+
+ def benchmarkInit(self):
+ self.setupWorkload()
+ self.setupGovernor()
+ if self.reboot:
+ self.reboot_target()
+
+ def benchmarkFinalize(self):
+ if self.delay_after_s:
+ self._log.info("Waiting %d[s] before to continue...",
+ self.delay_after_s)
+ sleep(self.delay_after_s)
+
+ def __init__(self, governor, video_url, video_duration_s, reboot=False,
+ delay_after_s=0):
+ self.reboot = reboot
+ self.governor = governor
+ self.video_url = video_url
+ self.video_duration_s = video_duration_s
+ self.delay_after_s = delay_after_s
+ super(YouTubeTest, self).__init__()
+
+ def setupWorkload(self):
+ # Create a results folder for each "governor/test"
+ self.out_dir = os.path.join(self.te.res_dir, governor,
+ self.video_url.replace('/', '_'))
+ try:
+ os.stat(self.out_dir)
+ except:
+ os.makedirs(self.out_dir)
+ # Setup workload parameters
+ self.bm_params = {
+ 'video_url' : self.video_url,
+ 'video_duration_s' : self.video_duration_s,
+ }
+
+ def setupGovernor(self):
+ try:
+ self.target.cpufreq.set_all_governors(self.governor);
+ except TargetError:
+ self._log.warning('Governor [%s] not available on target',
+ self.governor)
+ raise
+
+ # Setup schedutil parameters
+ if self.governor == 'schedutil':
+ rate_limit_us = 2000
+ # Different schedutil versions have different tunables
+ tunables = self.target.cpufreq.list_governor_tunables(0)
+ if 'rate_limit_us' in tunables:
+ tunables = {'rate_limit_us' : str(rate_limit_us)}
+ else:
+ assert ('up_rate_limit_us' in tunables and
+ 'down_rate_limit_us' in tunables)
+ tunables = {
+ 'up_rate_limit_us' : str(rate_limit_us),
+ 'down_rate_limit_us' : str(rate_limit_us)
+ }
+
+ try:
+ for cpu_id in range(self.te.platform['cpus_count']):
+ self.target.cpufreq.set_governor_tunables(
+ cpu_id, 'schedutil', **tunables)
+ except TargetError as e:
+ self._log.warning('Failed to set schedutils parameters: {}'\
+ .format(e))
+ raise
+ self._log.info('Set schedutil.rate_limit_us=%d', rate_limit_us)
+
+ # Setup ondemand parameters
+ if self.governor == 'ondemand':
+ try:
+ for cpu_id in range(self.te.platform['cpus_count']):
+ tunables = self.target.cpufreq.get_governor_tunables(cpu_id)
+ self.target.cpufreq.set_governor_tunables(
+ cpu_id, 'ondemand',
+ **{'sampling_rate' : tunables['sampling_rate_min']})
+ except TargetError as e:
+ self._log.warning('Failed to set ondemand parameters: {}'\
+ .format(e))
+ raise
+ self._log.info('Set ondemand.sampling_rate to minimum supported')
+
+ # Report configured governor
+ governors = self.target.cpufreq.get_all_governors()
+ self._log.info('Using governors: %s', governors)
+
+# Run the benchmark in each of the supported governors
+
+video_duration_s = 60
+
+governors = [
+ 'performance',
+ 'ondemand',
+ 'interactive',
+ 'sched',
+ 'schedutil',
+ 'powersave',
+]
+
+video_urls = [
+ 'https://youtu.be/XSGBVzeBUbk?t=45s',
+]
+
+# Reboot device only the first time
+do_reboot = True
+tests_remaining = len(governors) * len(video_urls)
+tests_completed = 0
+for governor in governors:
+ for url in video_urls:
+ tests_remaining -= 1
+ delay_after_s = 30 if tests_remaining else 0
+ try:
+ YouTubeTest(governor, url, video_duration_s,
+ do_reboot, delay_after_s)
+ tests_completed += 1
+ except:
+ # A test configuraion failed, continue with other tests
+ pass
+ do_reboot = False
+
+# We want to collect data from at least one governor
+assert(tests_completed >= 1)
+
+# vim :set tabstop=4 shiftwidth=4 expandtab