When encountering non-monotonic stats rows, recover remaining data by
clamping to 0. In particular, this avoids edge-case where persisting
threshold checks would never trigger. Also recover when tethering
snapshots are missing.
Bug: 5600785, 5433871, 5600678
Change-Id: I1871954ce3955cc4ac8846f9841bae0066176ffe
Moved away from BufferedReader, which only reads the first 8KB of
some proc files because it aggresively fills its buffer. Optimized
proc parsing, now double the speed. Tests to cover.
Log when NetworkStats counters roll backwards when subtracting, and
optimizations around findIndex(). When system removes UID, also
remove from last stats snapshot to avoid xt counters from rolling
backwards.
Bug: 5472949, 5458380
Change-Id: I07c08fe5233156fac2b84450f6291868bf9bfaf2
Lets the data traffic arrows work on LTE device on 1x,
but also lets telephony monitor for hung radios on 1X.
bug:5531630
Change-Id: I9fa25a5223afaa2e37373668c899ac28a95783fa
Replace TrafficStats calls by reading values from xt_qtaguid kernel
module. To keep BatteryStatsImpl changes lightweight, cache recently
parsed stats. Tracks mobile ifaces from ConnectivityService.
Refactor xt_qtaguid parsing into factory outside of NMS. Add stats
grouping based on UID, and total based on limiting filters like iface
prefix and UID.
Bug: 4902271
Change-Id: I533f116c434b77f93355bf95b839e7478528505b
Offer parameters to pick out specific list of packages, and to change
duration and total data.
Bug: 5416742
Change-Id: I6970a5e76f3198ef23a400c079037212b000ca6b
Begin tracking xtables summary of data usage to compare with values
reported from /proc/net/dev. Roll tethering directly into UID stats
to trigger UID stats persisting when crossing threshold.
Include xtables summary and authoritative time in samples.
Bug: 5373561, 5397882, 5381980
Change-Id: Ib7945522caadfbe0864fdf391582dc820f4f371e
Watch for changes to telephony network subtype, and update iface
mapping to persist stats under correct type. Update network stats
before removing tethering NAT rules.
Skip recording that would create empty historical buckets. Query UID
stats before iface stats to always skew positive when counters are
actively rolling forward.
Bug: 5360042, 5359860, 5335674, 5334448
Change-Id: I8aa37b568e8ffb70647218aa1aff5195d3e44d5a
When sampling network stats, always use atomic buckets instead of
interpolating. Always poll iface and UID together so we distribute
into buckets equally. Move stale bucket trimming to just before
writing stats.
Bug: 5321340
Change-Id: I78a2226778a79c875f3668336e39ea24a7b4d5c4
When sampling network stats, always use atomic buckets instead of
interpolating. Always poll iface and UID together so we distribute
into buckets equally. Move stale bucket trimming to just before
writing stats.
Bug: 5321340
Change-Id: I78a2226778a79c875f3668336e39ea24a7b4d5c4
Use new "gettetherstats" netd command to retrieve statistics for
active tethering connections. Keep tethering poll events separate
from UID poll, even though they end up same historical structures.
Bug: 5244846
Change-Id: Ia0c5165f6712c12b51586f86c331a2aad4ad6afb
Needed to add Ethernet overhead to uid_stats (IP level)
to compare with interface stats (Ethernet level).
Change-Id: Ia6324c21a868eea5ad3b67f546c9d10c7fb64172
Devices currently delay collecting UID stats during common operations
like global alerts to reduce parsing load. Here we introduce a flag
to always collect UID and iface stats together to aid debugging.
Bug: 5321340
Change-Id: Ia8e1daf1a6f9d5f5cf1f64a04b6b6766ee965ab6
When ifaces change, poll UID stats without persisting, since they
depend on knowing active iface to store correctly. Log dropped UID
stats when iface is unknown. Switch to using flags when calling
performPoll().
Enforce that "idx" values are consistent from xt_qtaguid. Transition
to using Log.wtf() for important checks, mostly around file I/O,
kernel stats parsing, and kernel module control. Increase stats
persist threshold to 2MB to reduce churn.
Bug: 5269476, 5270106
Change-Id: I721215bfb65127f95775c71cf135e907cd567e92
