| # Copyright 2015 The Chromium OS Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| import logging |
| import time |
| |
| |
| from autotest_lib.client.common_lib import error |
| from autotest_lib.client.common_lib.cros.network import ping_runner |
| from autotest_lib.client.common_lib.cros.network import xmlrpc_datatypes |
| from autotest_lib.server.cros.network import netperf_runner |
| from autotest_lib.server.cros.network import netperf_session |
| from autotest_lib.server.cros.network import wifi_cell_test_base |
| from autotest_lib.server.cros.bluetooth import bluetooth_device |
| |
| |
| class network_WiFi_BluetoothScanPerf(wifi_cell_test_base.WiFiCellTestBase): |
| """Test the effect of bluetooth scanning on wifi performance. |
| |
| Conducts a performance test for a set of specified router configurations |
| while scanning for bluetooth devices and reports results as keyval pairs. |
| |
| """ |
| |
| version = 1 |
| |
| NETPERF_CONFIGS = [ |
| netperf_runner.NetperfConfig( |
| netperf_runner.NetperfConfig.TEST_TYPE_TCP_STREAM), |
| netperf_runner.NetperfConfig( |
| netperf_runner.NetperfConfig.TEST_TYPE_TCP_MAERTS), |
| netperf_runner.NetperfConfig( |
| netperf_runner.NetperfConfig.TEST_TYPE_UDP_STREAM), |
| netperf_runner.NetperfConfig( |
| netperf_runner.NetperfConfig.TEST_TYPE_UDP_MAERTS), |
| ] |
| |
| |
| def parse_additional_arguments(self, commandline_args, additional_params): |
| """Hook into super class to take control files parameters. |
| |
| @param commandline_args dict of parsed parameters from the autotest. |
| @param additional_params list of HostapConfig objects. |
| |
| """ |
| self._ap_configs = additional_params |
| |
| |
| def test_one(self, session, config, ap_config_tag, bt_tag): |
| """Run one iteration of wifi testing. |
| |
| @param session NetperfSession session |
| @param config NetperfConfig config |
| @param ap_config_tag string for AP configuration |
| @param bt_tag string for BT operation |
| |
| """ |
| get_ping_config = lambda period: ping_runner.PingConfig( |
| self.context.get_wifi_addr(), interval=1, count=period) |
| |
| logging.info('testing config %s, ap_config %s, BT:%s', |
| config.tag, ap_config_tag, bt_tag) |
| test_str = '_'.join([ap_config_tag, bt_tag]) |
| time.sleep(1) |
| |
| signal_level = self.context.client.wifi_signal_level |
| signal_description = '_'.join(['signal', test_str]) |
| self.write_perf_keyval({signal_description: signal_level}) |
| |
| results = session.run(config) |
| if not results: |
| logging.error('Failed to take measurement for %s', |
| config.tag) |
| return |
| values = [result.throughput for result in results] |
| self.output_perf_value(config.tag + ' ' + bt_tag, values, units='Mbps', |
| higher_is_better=True, |
| graph=ap_config_tag) |
| result = netperf_runner.NetperfResult.from_samples(results) |
| self.write_perf_keyval(result.get_keyval( |
| prefix='_'.join([config.tag, test_str]))) |
| |
| # Test latency with ping. |
| result_ping = self.context.client.ping(get_ping_config(3)) |
| self.write_perf_keyval( |
| { '_'.join(['ping', test_str]): result_ping.avg_latency }) |
| logging.info('Ping statistics with %s: %r', bt_tag, result_ping) |
| |
| |
| |
| def run_once(self, host): |
| """Test body.""" |
| start_time = time.time() |
| |
| # Prepare Bluetooth to scan, but do not start yet. |
| bt_device = bluetooth_device.BluetoothDevice(host) |
| if not bt_device.reset_on(): |
| raise error.TestFail('DUT could not be reset to initial state') |
| |
| for ap_config in self._ap_configs: |
| # Set up the router and associate the client with it. |
| self.context.configure(ap_config) |
| if ap_config.is_11ac and not self.context.client.is_vht_supported(): |
| raise error.TestNAError('Client does not have AC support') |
| assoc_params = xmlrpc_datatypes.AssociationParameters( |
| ssid=self.context.router.get_ssid(), |
| security_config=ap_config.security_config) |
| self.context.assert_connect_wifi(assoc_params) |
| session = netperf_session.NetperfSession(self.context.client, |
| self.context.router) |
| |
| # Warmup the wifi path and measure signal. |
| session.warmup_stations() |
| ap_config_tag = ap_config.perf_loggable_description |
| |
| for config in self.NETPERF_CONFIGS: |
| self.test_one(session, config, ap_config_tag, 'BT_quiet') |
| if not bt_device.start_discovery(): |
| raise error.TestFail('Could not start discovery on DUT') |
| try: |
| self.test_one(session, config, ap_config_tag, 'BT_scanning') |
| finally: |
| if not bt_device.stop_discovery(): |
| logging.warning('Failed to stop discovery on DUT') |
| self.test_one(session, config, ap_config_tag, 'BT_quiet_again') |
| |
| # Clean up router and client state for the next run. |
| self.context.client.shill.disconnect(self.context.router.get_ssid()) |
| self.context.router.deconfig() |
| |
| end_time = time.time() |
| logging.info('Running time %0.1f seconds.', end_time - start_time) |
| |