commit 411cab97c641bdaa3c49c4cd656733842ee6bfd5
author Jong Wook Kim <jongwook@google.com> Thu Apr 26 15:09:23 2018 -0700
committer Jong Wook Kim <jongwook@google.com> Mon Jun 18 17:32:03 2018 -0700
tree 31a6e930e33e907ec0155dc9925d3ef95167d842
parent c675f31fdcc519a5eab8df135c49a277e61ab48b

Wifi Usability Metrics Proto Update

Generate WifiIsUnusableEvent when there is a data stall or a firmware
alert. In WifiIsUnusableEvent, store metrics related to time, packet
counts, trigger reason, and score.

Also, log ExperimentValues that we plan to change through global
settings varaible.

This logging is enabled by setting WIFI_IS_UNUSABLE_EVENT_METRICS_ENABLED
to 1. By default, this metric is not collected.

Manual Check Process:
- Connect to a network
- adb shell settings put global wifi_is_unusable_event_metrics_enabled 1
- adb shell dumpsys wifi wifiMetricsProto
- Move away from the ap to trigger data stall
- adb shell dumpsys wifi | grep -10 WifiIsUnusableEventList
- Verify that there is a WifiIsUnusableEvent

Bug: 77603216
Test: Unittest (settings core/tests/coretests).
Test: Manual Check.
Change-Id: I2d8425a420f5ba18e3eee0e11b6f35f6239a97b2

core/tests/coretests/src/android/provider/SettingsBackupTest.java

diff --git a/core/tests/coretests/src/android/provider/SettingsBackupTest.java b/core/tests/coretests/src/android/provider/SettingsBackupTest.java
index 14c641a..676d8d9 100644
--- a/core/tests/coretests/src/android/provider/SettingsBackupTest.java
+++ b/core/tests/coretests/src/android/provider/SettingsBackupTest.java
@@ -459,6 +459,8 @@
                     Settings.Global.WIFI_BOUNCE_DELAY_OVERRIDE_MS,
                     Settings.Global.WIFI_CONNECTED_MAC_RANDOMIZATION_ENABLED,
                     Settings.Global.WIFI_COUNTRY_CODE,
+                    Settings.Global.WIFI_DATA_STALL_MIN_TX_BAD,
+                    Settings.Global.WIFI_DATA_STALL_MIN_TX_SUCCESS_WITHOUT_RX,
                     Settings.Global.WIFI_DEVICE_OWNER_CONFIGS_LOCKDOWN,
                     Settings.Global.WIFI_DISPLAY_CERTIFICATION_ON,
                     Settings.Global.WIFI_DISPLAY_ON,
@@ -468,6 +470,7 @@
                     Settings.Global.WIFI_FRAMEWORK_SCAN_INTERVAL_MS,
                     Settings.Global.WIFI_FREQUENCY_BAND,
                     Settings.Global.WIFI_IDLE_MS,
+                    Settings.Global.WIFI_IS_UNUSABLE_EVENT_METRICS_ENABLED,
                     Settings.Global.WIFI_MAX_DHCP_RETRY_COUNT,
                     Settings.Global.WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS,
                     Settings.Global.WIFI_NETWORK_SHOW_RSSI,