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Added ability to ignore common WTF patterns. These were chosen across multiple
projects based off of WTF volume and usefulness. Ignoring these will make the
WTFs that do show up more useful. In addition, introduces new SDK settings to
control whether these patterns are used, and to add additional WTF ignore
patterns.
The default ignored patterns are:
"No service published for: appwidget at
android.app.SystemServiceRegistry.onServiceNotFound.*"
"EXTRA_USER_HANDLE missing or invalid, value=0.*"
"Failed to read field SystemLocale.*"
"BUG: NetworkAgentInfo.*"
"Attempt to decrement existing alarm count 0 by 1 for uid 1000.*"
"Removed TIME_TICK alarm.*"
"requesting nits when no mapping exists.*"
"Could not open /sys/kernel/tracing/instances/bootreceiver/trace_pipe.*"
Added Bluetooth quality metrics.
bluetooth.ble_scan_result.count tracks the number of BLE devices found in
each scan
bluetooth.ble_scan_result.attribution tracks the initiator of the BLE scan
bluetooth.device_rssi.(min|mean|max) tracks the Bluetooth RSSI
distribution
bluetooth.device_rssi.device_id.latest tracks the Bluetooth device
reporting the RSSI value
bluetooth.device_tx_power_level.(min|mean|max) tracks the Bluetooth TX
power level distribution
bluetooth.device_tx_power_level.device_id tracks the Bluetooth device
reporting the TX power level value
bluetooth.quality_report.rssi.(min|mean|max) tracks the Bluetooth RSSI
distribution reported by the Bluetooth quality report (if available)
bluetooth.quality_report.snr.(min|mean|max) tracks the Bluetooth SNR
distribution reported by the Bluetooth quality report (if available)
bluetooth.quality_report.retransmission_count.(mean|max|sum) tracks the
number of retransmissions reported by the Bluetooth quality report (if
available).
bluetooth.quality_report.reported.latest reports the latest Bluetooth
quality report.
Added heartbeat metrics for any batterystats metrics that were previously only
used in HRT.
camera
camera_on_ratio
video
video_on_ratio
flashlight
flashlight_on_ratio
bluetooth
bluetooth_on_ratio
usb_data
usb_data_on_ratio
wake_lock
wake_lock_on_ratio
wifi_full_lock
wifi_full_lock_ratio
long_wake_lock
long_wake_lock_on_ratio
screen_wake
screen_wake_count
package_install
package_install_count
phone_connection
phone_connection_latest
phone_in_call
phone_in_call_ratio
phone_state
phone_state_in_ratio
phone_state_out_ratio
phone_state_em_ratio
cellular_high_tx_power
cellular_high_tx_power_on_ratio
nr_state
nr_state_none_ratio
nr_state_restricted_ratio
nr_state_not_restricted_ratio
nr_state_connected_ratio
Added support for reporting USB contaminant events.
usb.contaminant_reported.latest
Updated existing network metrics to generate a heartbeat metric as well.
connectivity.airplane_mode.latest
connectivity.internet.latest
connectivity.validated.latest
connectivity.captive_portal.latest
connectivity.roaming.latest
connectivity.unmetered_temporarily.latest
Added basic IPv4 and IPv6 connectivity metrics.
connectivity.ip_version.latest with states "IPv4", "IPv6", "IPv4+IPv6",
"?"
connectivity.ipv4_status.latest with states "Internet Available",
"Configuration Error", "Not Available"
connectivity.ipv6_status.latest with states "Internet Available", "Local
Only", "Not Available"
Added Wi-Fi RSSI time-based moving average metric. This metric is calculated
from raw values obtained from WifiManager broadcasts using an exponential
moving average.
connectivity.wifi.rssi.moving_avg
Added Wi-Fi roaming and channel hop counters.
connectivity.wifi.roaming_count increments when connected to the same
configured network but the connected access point changed
connectivity.wifi.channel_hop_count increments when connected to the same
network, but the channel changed
Added metric to distinguish between 2.4/5/6 GHz Wi-Fi frequency bands for
easier device identification.
connectivity.wifi.frequency
connectivity.wifi.frequency_band
Added count of scanned Wi-Fi networks metric from statsd.
connectivity.wifi.scan_network_count
connectivity.wifi.scan_network_count.count
connectivity.wifi.scan_network_count.mean
Added low memory event reporting when low memory is reported by the System
Server.
memory.low_mem_reported
Added slow I/O event metrics which contain a 24h count of the slow I/O events
of a given type.
Added USB device attached/detached event reports. These will be reported when
USB devices are attached or detached and will contain the full list of
connected devices in each category.
usb.devices
usb.accessories
Added Wi-Fi OUI (Organizationally Unique Identifier) support. The OUI is
queried via the Dumpster service using dumpsys wifi. Memfault will
automatically calculate the manufacturer of the device based off of its OUI.
connectivity.wifi.ap_oui
Added Wi-Fi disconnected session metric. The event contains the disconnect
reason, time connected, last RSSI and link speed as well as channel. These
metrics are available in Android 12+.
wifi_disconnect_session
wifi.frequency-band-bucket
wifi.frequency-band
wifi.failure-code-name
wifi.failure-code
wifi.last-rssi
wifi.last-link-speed
Added low memory kill event reporting when applications are killed by the
system due to low memory.
memory.lmk_kill_occurred
🚧 Fixes
Coalesced consecutive logcat "switch to" separators. This should reduce the
spam where multiple log lines in a row are just buffer switches.
Fixed incorrect session end time. The session end will now be recorded when
end is called, instead of at the heartbeat collection time.
Cleaned up continuous logcat "switch to" buffer logs to always append a
newline. This avoids the "switch to" lines intermixing with normal output.
Fixed invalid boot id parsing in Bort Lite. Returns a zero'd UUID instead of
"unknown" for the Linux boot id. Also, falls back to "reboot,permissiondenied"
instead of "reboot,bort_unknown" for better clarity.
Fixed potential memory leak in UsageReporter found by LeakCanary.
Fixed session deadlock when the sessions rate limit is hit.
Increased rate limit defaults.
The Sessions rate limit was thought to be 125 every day, but ended up being
125, and then 1 back every day due to the token bucket algorithm.
Similarly, the mar_file/client server mar file rate limit implied 500 files
per hour but ended up being 24 a day once the limit was hit.
Ignored potential Room database migration failures. Fallback to destructive
migration if the database migration fails on downgrade.
📈 Improvements
Bumped to reporting library 1.6.0.
Added support for Gradle testFixtures.
Changed Android Studio default project. Load the project root in Android
Studio instead of MemfaultPackages/. MemfaultDumpstateRunner, MemfaultDumpster, and MemfaultStructuredLogd will now be visible in the
IDE.
Updated MAR unspooling to use new data_upload_start_date device config
variable to control what data should be uploaded.
Added leakcanary to the Bort, OTA, and Reporter apps to check for leaks.
Enabled Android lint.
Deleted log_buffer_expired counter metric. This was too spammy.
