1 # Copyright (c) 2014 The Chromium OS Authors. All rights reserved. 2 # Use of this source code is governed by a BSD-style license that can be 3 # found in the LICENSE file. 4 5 import logging, time 6 7 from autotest_lib.client.bin import test, utils 8 from autotest_lib.client.common_lib import error 9 from autotest_lib.client.cros import perf 10 from autotest_lib.client.cros import service_stopper 11 12 13 class graphics_PerfControl(test.test): 14 version = 1 15 16 # None-init vars used by cleanup() here, in case setup() fails 17 _services = None 18 19 def initialize(self): 20 self._services = service_stopper.ServiceStopper(['ui']) 21 22 def cleanup(self): 23 if self._services: 24 self._services.restore_services() 25 26 def run_once(self): 27 logging.info(utils.get_board_with_frequency_and_memory()) 28 29 # If UI is running, we must stop it and restore later. 30 self._services.stop_services() 31 32 # Wrap the test run inside of a PerfControl instance to make machine 33 # behavior more consistent. 34 with perf.PerfControl() as pc: 35 if not pc.verify_is_valid(): 36 raise error.TestFailure('Failed: %s' % pc.get_error_reason()) 37 # Do nothing for a short while so the PerfControl thread is collecting 38 # real data. 39 time.sleep(10) 40 41 if not pc.verify_is_valid(): 42 raise error.TestFail('Failed: %s' % pc.get_error_reason()) 43
