shaka-packager/build/android/pylib/perf/setup.py

75 lines
2.1 KiB
Python

# Copyright 2013 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Generates test runner factory and tests for performance tests."""
import json
import logging
import os
import psutil
import signal
import time
from pylib import android_commands
from pylib import cmd_helper
from pylib import forwarder
from pylib import ports
import test_runner
def _KillPendingServers():
for retry in range(5):
for server in ['lighttpd', 'web-page-replay']:
pids = [p.pid for p in psutil.process_iter() if server in p.name]
for pid in pids:
try:
logging.warning('Killing %s %s', server, pid)
os.kill(pid, signal.SIGQUIT)
except Exception as e:
logging.warning('Failed killing %s %s %s', server, pid, e)
# Restart the adb server with taskset to set a single CPU affinity.
cmd_helper.RunCmd(['adb', 'kill-server'])
cmd_helper.RunCmd(['taskset', '-c', '0', 'adb', 'start-server'])
cmd_helper.RunCmd(['taskset', '-c', '0', 'adb', 'root'])
i = 1
while not android_commands.GetAttachedDevices():
time.sleep(i)
i *= 2
if i > 10:
break
# Reset the test port allocation. It's important to do it before starting
# to dispatch any step.
if not ports.ResetTestServerPortAllocation():
raise Exception('Failed to reset test server port.')
forwarder.Forwarder.UseMultiprocessing()
def Setup(test_options):
"""Create and return the test runner factory and tests.
Args:
test_options: A PerformanceOptions object.
Returns:
A tuple of (TestRunnerFactory, tests).
"""
# Before running the tests, kill any leftover server.
_KillPendingServers()
with file(test_options.steps, 'r') as f:
tests = json.load(f)
flaky_steps = []
if test_options.flaky_steps:
with file(test_options.flaky_steps, 'r') as f:
flaky_steps = json.load(f)
def TestRunnerFactory(device, shard_index):
return test_runner.TestRunner(
test_options, device, tests, flaky_steps)
return (TestRunnerFactory, sorted(tests.keys()))