| 8b2c3a14603d163d7564e6f60286995079687690 |
|
12-Nov-2012 |
Jeff Sharkey <jsharkey@android.com> |
Useful annotations for code documentation.
Bug: 6537978
Change-Id: I806c3c09e3255f8789455f13bf37c1dde2a93f1f
/frameworks/base/core/java/android/net/NetworkStats.java
|
| daa57e8d1866fe4579c280c41604f3660db7cd01 |
|
19-Sep-2012 |
Jeff Sharkey <jsharkey@android.com> |
Migrate network stats from removed users.
When a user is removed, migrate all network stats belonging to that
user into special UID_REMOVED bucket. Also removes those stats from
kernel to avoid double-counting if another user is created.
Bug: 7194784
Change-Id: I03f1d660fe3754566326b7749cae8068fc224ea9
/frameworks/base/core/java/android/net/NetworkStats.java
|
| 70c70530bd6793869736ec894498e4ebf5dc9b20 |
|
16-May-2012 |
Jeff Sharkey <jsharkey@android.com> |
Transition from DEV network stats to XT.
When XT stats are available, transition to prefer them over DEV,
since they aren't subject to hardware driver bugs. Only switches at
the first atomic XT bucket, and adds a Settings.Secure flag to force
back to DEV if needed. Includes tests to cover transition.
Fix tests where device overlay would change which network types
reflected data usage. Test both history and summary APIs. Fixed
collection timestamps to reflect full buckets.
Bug: 6504744
Change-Id: Idd7f3b2fdb064c36547c85c51c214fd938c59b7e
/frameworks/base/core/java/android/net/NetworkStats.java
|
| bfdd680ab44da173a4a39fcd6feccdebb9d1f855 |
|
09-Apr-2012 |
Jeff Sharkey <jsharkey@android.com> |
Migrate to @Override to remove warnings.
Bug: 6303344
Change-Id: I0d33b2ed448467379d576ccd71fb5ae20c878852
/frameworks/base/core/java/android/net/NetworkStats.java
|
| 21a547823de52806de48f70b8360353344a5ad88 |
|
09-Apr-2012 |
Jeff Sharkey <jsharkey@android.com> |
Splice operations before collapsing ifaces.
Bug: 6241038
Change-Id: Ide9058703f7305df8fb070af149ddce0653a0abf
/frameworks/base/core/java/android/net/NetworkStats.java
|
| 63abc37356728c0575d6a62a203102ae6d97953b |
|
12-Jan-2012 |
Jeff Sharkey <jsharkey@android.com> |
Move network stats to FileRotator pattern.
Split existing network stats into two separate classes: a recorder
which generates historical data based on periodic counter snapshots,
and a collection of historical data with persistance logic.
Recorder keeps a pending history in memory until outstanding data
crosses a specific threshold. Persisting is handled through a given
FileRotator. This pattern significantly reduces disk churn and
memory overhead. Separate UID data from UID tag data, enabling a
shorter rotation cycle. Migrate existing stats into new structure.
Remove "xt" stats until iptables hooks are ready. Avoid consuming
Entry values when recording into NetworkStatsHistory. Assign
operation counts to default route interface.
Introduce "Rewriter" interface in FileRotator with methods to enable
rewriteAll(). Introduce IndentingPrintWriter to handle indenting in
dump() methods.
Bug: 5386531
Change-Id: Ibe086230a17999a197206ca62d45f266225fdff1
/frameworks/base/core/java/android/net/NetworkStats.java
|
| 5a7bcf31a44d9875ca5fc010dc213aa2bd5b1168 |
|
11-Jan-2012 |
Jeff Sharkey <jsharkey@android.com> |
Move non-monotonic reporting to interface.
Report non-monotonic NetworkStats through an observer interface
instead of throwing, since those events are still recoverable.
Change-Id: Ic0749f4634b0ac05dbe90e95ca490957ec8b2f23
/frameworks/base/core/java/android/net/NetworkStats.java
|
| d4ef8c8fc9ea70448e5d8138bf8bc96f4e69903f |
|
11-Nov-2011 |
Jeff Sharkey <jsharkey@android.com> |
Clamp non-monotonic stats instead of dropping.
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
/frameworks/base/core/java/android/net/NetworkStats.java
|
| 630a13bdd88723599a7617ca4df20ab923e7ffbb |
|
09-Nov-2011 |
Jeff Sharkey <jsharkey@android.com> |
Merge "Bootstrap stats before registering listeners." into ics-mr1
|
| 3359aca7655a7d18615c1ada6cbabeff403947d1 |
|
09-Nov-2011 |
Jeff Sharkey <jsharkey@android.com> |
Bootstrap stats before registering listeners.
Also move ISE to handled NonMonotonicException.
Bug: 5570872
Change-Id: I793f349287ef5589185f117dfbec6f1fad73a661
/frameworks/base/core/java/android/net/NetworkStats.java
|
| 4abb1b8ef64dc4cd71966b59dc5d72a15055bf13 |
|
09-Nov-2011 |
Jeff Sharkey <jsharkey@android.com> |
Make operation counts monotonically increase.
Bug: 5585704
Change-Id: I5247a68acdb209a4ef0f5aac18944595c295e6ca
/frameworks/base/core/java/android/net/NetworkStats.java
|
| 163e6443f27884a9bfcb9a48ef606dc635852c23 |
|
01-Nov-2011 |
Jeff Sharkey <jsharkey@android.com> |
Correct proc file reader, optimizations.
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
/frameworks/base/core/java/android/net/NetworkStats.java
|
| 1059c3c30ad96a15695c1a92ae8896e078a6309f |
|
05-Oct-2011 |
Jeff Sharkey <jsharkey@android.com> |
Move battery stats to xt_qtaguid for data stats.
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
/frameworks/base/core/java/android/net/NetworkStats.java
|
| 905b5891d2aa802f447ac2ce5d77b6c5ba06277a |
|
01-Oct-2011 |
Jeff Sharkey <jsharkey@android.com> |
Track xtables summary, move tether stats, time.
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
/frameworks/base/core/java/android/net/NetworkStats.java
|
| b3d5957604f8fcaafe72bd76052bc76b682bf443 |
|
08-Sep-2011 |
Jeff Sharkey <jsharkey@android.com> |
Poll UID stats during iface changes, enforce idx.
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
/frameworks/base/core/java/android/net/NetworkStats.java
|
| 07b0dd9a092273f0451cd9881312cb9b22a7af3f |
|
01-Sep-2011 |
Jeff Sharkey <jsharkey@android.com> |
Sample network statistics for sanity check.
After detailed poll events, sample high-level network statistics to
sanity check iface totals against UID totals.
Bug: 5248382
Change-Id: I1c1fbb7c094c9ff0c9dde416467c563dda68f478
/frameworks/base/core/java/android/net/NetworkStats.java
|
| 47eb102b40cd1324d89816a7fb0fecd14fd7a408 |
|
26-Aug-2011 |
Jeff Sharkey <jsharkey@android.com> |
Always splice historical data stats, debug info.
When reading network counters, always splice in xt_qtaguid values
to avoid counting backwards. Test to verify.
Remove verbose logging around global alerts, and add dumpsys debug
info for NMS and MDST. Also fix subtle bug around stats persisting
and dumping.
Bug: 5212893, 5211028
Change-Id: I783e5286637a67ee2dd2b09878198711a926d0cb
/frameworks/base/core/java/android/net/NetworkStats.java
|
| 8e9992ae5053a3ac52d28a5a892aed0a0798c7ab |
|
24-Aug-2011 |
Jeff Sharkey <jsharkey@android.com> |
Register for kernel global data usage alerts.
Instead of polling every 15 minutes, register for alerts that trigger
when system-wide traffic passes a threshold. Still mixed with polling
to persist UID stats, but relaxed to 30 minutes. Currently watches
for every 512kB.
Make persistence decision separately for network versus UID, and use
total delta bytes when making decision. Use light bootstrap during
systemReady() instead of heavy poll, which had been force-loading all
UID data unnecessarily.
Bug: 5023631
Change-Id: I04b723d6c4bf872fb1028071122dba66a8e1b576
/frameworks/base/core/java/android/net/NetworkStats.java
|
| b5d55e302d2253e4bfb233ea705caf258cdc4cb9 |
|
11-Aug-2011 |
Jeff Sharkey <jsharkey@android.com> |
Foreground/background network stats using sets.
Teach NetworkStats about "counter sets" coming from kernel, and use
them to track usage in foreground/background. Add AID_NET_BW_ACCT to
system_server so it can control counter sets.
Move to composite key of NetworkIdentitySet, UID, set, and tag when
recording historical usage. Persisting still clusters by identity,
since that is heaviest object.
Request async stats poll during systemReady() to bootstrap later
delta calculations. Reset kernel counters when UID removed. Update
various tests.
Bug: 5105592, 5146067
Change-Id: Idabec9e3ffcaf212879821515602ecde0a03de8c
/frameworks/base/core/java/android/net/NetworkStats.java
|
| 63d27a9233fed934340231f438493746084a681d |
|
04-Aug-2011 |
Jeff Sharkey <jsharkey@android.com> |
Network stats with varint, omit parcel fields.
Persist NetworkStatsHistory using variable-length encoding; since
most buckets have small numbers, we can encode them tighter. Initial
test showed 44% space savings. Also persist packet and operation
counters.
Let NetworkStatsHistory consumers request which fields they actually
need to reduce parcel overhead.
Tests for verify varint and history field requests, also verify end-
to-end by persisting history into byte[] and restoring. Expose
bandwidth control enabled state. Extend random generation to create
packet and operation counts. Moved operation counts to long.
Fix bug that miscalculated bytes since last persist, which would
cause partial stats loss when battery pulled.
Bug: 4581977, 5023706, 5023635, 5096903
Change-Id: If61e89f681ffa11fe5711471fd9f7c238d3d37b0
/frameworks/base/core/java/android/net/NetworkStats.java
|
| a63ba59260cd1bb3f5c16e395ace45a61f1d4461 |
|
20-Jul-2011 |
Jeff Sharkey <jsharkey@android.com> |
Add operation counts to network statistics.
Provide API to increment "operation counts" for a UID and tag, used
to eventually derive bytes/operation stats. Internally is stored at
network layer, but should belong at data layer. Switch profiling
to use data layer stats, which are emulated by summarizing network
layer details.
Read packet counts from new /proc/ columns and collect them into
NetworkStatsHistory. Prevent double-counting by ignoring values from
first snapshot. Watch for duplicate /proc/ entries. Update tests
to verify packet and operation counters.
Bug: 5052136, 5097392
Change-Id: I1832f65a2b8a9188f8088f253474a667c21a2f09
/frameworks/base/core/java/android/net/NetworkStats.java
|
| d37948f6ed1667d077e0e3a38808f42f981ddcc2 |
|
12-Jul-2011 |
Jeff Sharkey <jsharkey@android.com> |
Hide NetworkStatsHistory internals.
Instead of exposing internal storage details, offer getValues()
accessor which populates values into a recycled structure.
Change-Id: I5228d7099a8f61b2018a435a813435a67dae49b4
/frameworks/base/core/java/android/net/NetworkStats.java
|
| fd8be3e5e7420f3cca591daeec8a44487f5f65aa |
|
11-Jul-2011 |
Jeff Sharkey <jsharkey@android.com> |
Return stats from inactive ifaces, packet counts.
When an iface goes inactive, xt_qtaguid maintains historical counters
instead of discarding. Now reading and returning those values in
NetworkManagementService summary calls. Tests to verify stats are
returned.
Modify NetworkStats to include rxPackets and txPackets values, and
move to Entry to eventually hide internal storage details.
Bug: 4984539
Change-Id: I1ba0bb5580c62e946d9dff2cc2a6f64aff403efc
/frameworks/base/core/java/android/net/NetworkStats.java
|
| 1b5a2a96f793211bfbd39aa29cc41031dfa23950 |
|
19-Jun-2011 |
Jeff Sharkey <jsharkey@android.com> |
Read "qtaguid" network stats, refactor templates.
Teach NMS to read qtaguid stats from kernel, but fall back to older
stats when kernel doesn't support. Add "tags" to NetworkStats entries
to support qtaguid. To work around double-reporting bug, subtract
tagged stats from TAG_NONE entry.
Flesh out stronger NetworkTemplate. All NetworkStatsService requests
now require a template, and moved matching logic into template.
Record UID stats keyed on complete NetworkIdentitySet definition,
similar to how interface stats are stored. Since previous UID stats
didn't have iface breakdown, discard during file format upgrade.
Change-Id: I0447b5e7d205d73d28e71c889c568e536e91b8e4
/frameworks/base/core/java/android/net/NetworkStats.java
|
| 4a97122ebf4d92a3f94402041729d77905e6c0c0 |
|
12-Jun-2011 |
Jeff Sharkey <jsharkey@android.com> |
Growable NetworkStats object instead of builder.
NetworkStats now grows in place with arraycopy() instead of callers
needing to know record count a priori. Better growth calculation for
both NetworkStats and NetworkStatsHistory; 50% each time. Better
estimates of buckets needed in calling services.
Change-Id: I3adbffa0b7407612cc6349d9135a8b4eb63cd440
/frameworks/base/core/java/android/net/NetworkStats.java
|
| 3f3913550c10792edb8aecf66cc83c3db5c8b311 |
|
06-Jun-2011 |
Jeff Sharkey <jsharkey@android.com> |
Persist network stats using AtomicFile.
Implements read/write of network stats using AtomicFile, along with
magic number and versioning. Stores in "/data/system/netstats.bin"
for now. Tests to verify that stats are persisted across a simulated
reboot, and to verify that TEMPLATE_WIFI is working.
Fixed bug where kernel counters rolling backwards would cause negative
stats to be recorded; now we clamp deltas at 0.
Change-Id: I53bce26fc8fd3f4ab1e34ce135d302edfa34db34
/frameworks/base/core/java/android/net/NetworkStats.java
|
| 61ee0bbb5b87fb5c4c3dc219868d52743def3d2b |
|
30-May-2011 |
Jeff Sharkey <jsharkey@android.com> |
UID network stats, secure settings, and random.
Collect UID-granularity network stats during regular poll event. Add
dumpsys argument to generate fake historical data for debugging, and
move stats parameters to Settings.Secure.
Change-Id: I09b36a2955dc10c697d4b9c3ff23dcb3ac37bd70
/frameworks/base/core/java/android/net/NetworkStats.java
|
| 75279904202357565cf5a1cb11148d01f42b4569 |
|
25-May-2011 |
Jeff Sharkey <jsharkey@android.com> |
Collect historical network stats.
Periodically records delta network traffic into historical buckets to
support other services, such NetworkPolicyManager and Settings UI.
Introduces NetworkStatsHistory structure which contains sparse, uniform
buckets of data usage defined by timestamps. Service periodically
polls NetworkStats and records changes into buckets. It only persists
to disk when substantial changes have occured. Current parameters
create 4 buckets each day, and persist for 90 days, resulting in about
8kB of data per network.
Only records stats for "well known" network interfaces that have been
claimed by Telephony or Wi-Fi subsystems. Historical stats are also
keyed off identity (such as IMSI) to support SIM swapping.
Change-Id: Ia27d1289556a2bf9545fbc4f3b789425a01be53a
/frameworks/base/core/java/android/net/NetworkStats.java
|
| eedcb9525ba5befee2ba6ebb7a9ee3f13395c2a3 |
|
17-May-2011 |
Jeff Sharkey <jsharkey@android.com> |
APIs to profile network usage for current UID.
Added startDataProfiling() and stopDataProfiling() to TrafficStats,
which can be used by apps to measure network usage delta between two
points in time. Currently takes two NetworkStats snapshots and returns
delta, which will eventually include tag-level granularity. Added
tests for NetworkStats delta subtraction.
Added NMS.getNetworkStatsUidDetail() that returns stats for specific
UID. Always gives stats access for the calling UID, otherwise enforces
that caller has permission. Fix readSingleLongFromFile(), since
/proc/ files don't have well-defined lengths.
Change-Id: Ic5b6414d8effbd66846e275b00d4b8a82c74589d
/frameworks/base/core/java/android/net/NetworkStats.java
|
| 9a13f36cddaad01350bdb5f000167811a1d753c9 |
|
27-Apr-2011 |
Jeff Sharkey <jsharkey@android.com> |
Return NetworkStats bundle from NM service.
Introduce NetworkStats which is a collection of network statistics,
which should match the structure communicated by kernel module through
netd. Will introduce tags and fg/bg stats later. Kept entirely in a
flat data structure to optimize parcel speed.
Initial pass at returning NetworkStats from NetworkManagementService,
both summary and details. Will eventually pull data from kernel module
over netd connection.
Change-Id: I92d9f61678ec8c22e2ce26775fb035a0cf32413f
/frameworks/base/core/java/android/net/NetworkStats.java
|