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Commit e4aa37fe authored by Jong Wook Kim's avatar Jong Wook Kim
Browse files

Link Speed Metrics Proto 

Add a histogram of link speed values with count and rssi values.

Collect this metrics only when enabled in settings. By default, we don't
collect this metrics.

Bug: 78354985
Test: Settings Unittest
Change-Id: I683dfb45a01de5e1243d612a117a5544b0d4dc05
parent 411cab97

core/java/android/provider/Settings.java

+8 −0
Original line number Diff line number Diff line
@@ -9935,6 +9935,14 @@ public final class Settings { 
        public static final String WIFI_DATA_STALL_MIN_TX_SUCCESS_WITHOUT_RX =

                "wifi_data_stall_min_tx_success_without_rx";













        /**













         * Setting to enable logging Wifi LinkSpeedCounts in metrics.













         * Disabled by default, and setting it to 1 will enable it.













         * @hide













         */













        public static final String WIFI_LINK_SPEED_METRICS_ENABLED =













                "wifi_link_speed_metrics_enabled";



























       /**















        * The maximum number of times we will retry a connection to an access















        * point for which we have failed in acquiring an IP address from DHCP.

































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



+1
−0




























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@@ -471,6 +471,7 @@ public class SettingsBackupTest {













                    Settings.Global.WIFI_FREQUENCY_BAND,















                    Settings.Global.WIFI_IDLE_MS,















                    Settings.Global.WIFI_IS_UNUSABLE_EVENT_METRICS_ENABLED,













                    Settings.Global.WIFI_LINK_SPEED_METRICS_ENABLED,















                    Settings.Global.WIFI_MAX_DHCP_RETRY_COUNT,















                    Settings.Global.WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS,















                    Settings.Global.WIFI_NETWORK_SHOW_RSSI,

































proto/src/wifi.proto



+23
−0




























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@@ -466,6 +466,10 @@ message WifiLog {













  // List of WifiIsUnusableEvents which get logged when we notice that WiFi is unusable.















  // Collected only when WIFI_IS_UNUSABLE_EVENT_METRICS_ENABLED Settings is enabled.















  repeated WifiIsUnusableEvent wifi_is_unusable_event_list = 120;



























  // Counts the occurrences of each link speed (Mbps) level













  // with rssi (dBm) and rssi^2 sums (dBm^2)













  repeated LinkSpeedCount link_speed_counts = 121;















}































// Information that gets logged for every WiFi connection.










@@ -651,6 +655,22 @@ message WifiScoreCount {













  optional int32 count = 2;















}





























// Number of occurrences of a specific link speed (Mbps)













// and sum of rssi (dBm) and rssi^2 (dBm^2)













message LinkSpeedCount {













  // Link speed (Mbps)













  optional int32 link_speed_mbps = 1;



























  // Number of RSSI polls with link_speed













  optional int32 count = 2;



























  // Sum of absolute values of rssi values (dBm)













  optional int32 rssi_sum_dbm = 3;



























  // Sum of squares of rssi values (dBm^2)













  optional int64 rssi_sum_of_squares_dbm_sq = 4;













}





























// Number of occurrences of Soft AP session durations















message SoftApDurationBucket {















  // Bucket covers duration : [duration_sec, duration_sec + bucket_size_sec)










@@ -1532,6 +1552,9 @@ message ExperimentValues {













  // Minimum number of txSuccess to trigger a data stall















  // when rxSuccess is 0















  optional int32 wifi_data_stall_min_tx_success_without_rx = 3;



























  // Indicates if we are logging LinkSpeedCount in metrics













  optional bool link_speed_counts_logging_enabled = 4;















}































message WifiIsUnusableEvent {