1 # Copyright 2015 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 csv, logging, os 6 import time 7 8 from autotest_lib.client.bin import site_utils, test, utils 9 from autotest_lib.client.common_lib import error 10 from autotest_lib.client.common_lib.cros import chrome 11 12 # Measurement duration [seconds] for one interation. 13 MEASUREMENT_DURATION = 10 14 15 TOTAL_TEST_DURATION = 600 # change the test time to 7 days [seconds]. 16 17 # Time to exclude from calculation after launching the demo [seconds]. 18 STABILIZATION_DURATION = 20 19 20 _PERF_RESULT_FILE = '/tmp/perf.csv' 21 22 class enterprise_KioskPerf(test.test): 23 """Enrolls to kiosk mode and monitors cpu/memory usage.""" 24 25 version = 1 26 27 28 def test_cpu_usage(self): 29 """ 30 Runs the video cpu usage test. 31 32 @param local_path: the path to the video file. 33 34 @returns a dictionary that contains the test result. 35 """ 36 cpu_usage_start = site_utils.get_cpu_usage() 37 time.sleep(MEASUREMENT_DURATION) 38 cpu_usage_end = site_utils.get_cpu_usage() 39 return site_utils.compute_active_cpu_time(cpu_usage_start, 40 cpu_usage_end) * 100 41 42 43 def used_mem(self): 44 """Returns total used memory in %.""" 45 total_memory = site_utils.get_mem_total() 46 return (total_memory - site_utils.get_mem_free()) * 100 / total_memory 47 48 def verify_enrollment(self, user_id): 49 """Verifies enterprise enrollment using /home/.shadow config.""" 50 with open('/home/.shadow/install_attributes.pb') as f: 51 if not user_id in f.read(): 52 raise error.TestError('Device is not enrolled or ' 53 'enterprise owned.') 54 55 def run_once(self): 56 user_id, password = utils.get_signin_credentials(os.path.join( 57 os.path.dirname(os.path.realpath(__file__)), 'credentials.txt')) 58 if not (user_id and password): 59 logging.warn('No credentials found - exiting test.') 60 return 61 62 with chrome.Chrome(auto_login=False) as cr: 63 cr.browser.oobe.NavigateGaiaLogin( 64 user_id, password, 65 enterprise_enroll=True, 66 for_user_triggered_enrollment=True) 67 time.sleep(STABILIZATION_DURATION) 68 self.verify_enrollment(user_id) 69 start_time = time.time() 70 perf_keyval = {} 71 perf_file = open(_PERF_RESULT_FILE, 'w') 72 writer = csv.writer(perf_file) 73 writer.writerow(['cpu','memory', 'timestamp']) 74 while (time.time() - start_time) < TOTAL_TEST_DURATION: 75 perf_keyval['cpu_usage'] = self.test_cpu_usage() 76 perf_keyval['memory_usage'] = self.used_mem() 77 writer.writerow([perf_keyval['cpu_usage'], 78 perf_keyval['memory_usage'], 79 time.strftime('%Y/%m/%d %H:%M:%S')]) 80 self.write_perf_keyval(perf_keyval) 81 time.sleep(10) 82 perf_file.close() 83
