9a2c2a6da90abbcc9a064c20e93ed885651f4ae1 |
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15-Jan-2013 |
Jeff Sharkey <jsharkey@android.com> |
Parse network stats using native code. Switch to parsing detailed network stats with native code, which is 71% faster than ProcFileReader. Change-Id: I2525aaee74d227ce187ba3a74dd08a2b06514deb
/frameworks/base/core/java/android/net/NetworkStats.java
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8b2c3a14603d163d7564e6f60286995079687690 |
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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
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daa57e8d1866fe4579c280c41604f3660db7cd01 |
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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
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70c70530bd6793869736ec894498e4ebf5dc9b20 |
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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
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bfdd680ab44da173a4a39fcd6feccdebb9d1f855 |
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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
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21a547823de52806de48f70b8360353344a5ad88 |
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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
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63abc37356728c0575d6a62a203102ae6d97953b |
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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
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5a7bcf31a44d9875ca5fc010dc213aa2bd5b1168 |
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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
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d4ef8c8fc9ea70448e5d8138bf8bc96f4e69903f |
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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
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630a13bdd88723599a7617ca4df20ab923e7ffbb |
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09-Nov-2011 |
Jeff Sharkey <jsharkey@android.com> |
Merge "Bootstrap stats before registering listeners." into ics-mr1
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3359aca7655a7d18615c1ada6cbabeff403947d1 |
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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
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4abb1b8ef64dc4cd71966b59dc5d72a15055bf13 |
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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
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163e6443f27884a9bfcb9a48ef606dc635852c23 |
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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
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1059c3c30ad96a15695c1a92ae8896e078a6309f |
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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
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905b5891d2aa802f447ac2ce5d77b6c5ba06277a |
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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
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b3d5957604f8fcaafe72bd76052bc76b682bf443 |
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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
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07b0dd9a092273f0451cd9881312cb9b22a7af3f |
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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
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47eb102b40cd1324d89816a7fb0fecd14fd7a408 |
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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
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8e9992ae5053a3ac52d28a5a892aed0a0798c7ab |
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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
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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
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63d27a9233fed934340231f438493746084a681d |
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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
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a63ba59260cd1bb3f5c16e395ace45a61f1d4461 |
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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
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d37948f6ed1667d077e0e3a38808f42f981ddcc2 |
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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
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fd8be3e5e7420f3cca591daeec8a44487f5f65aa |
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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
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1b5a2a96f793211bfbd39aa29cc41031dfa23950 |
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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
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4a97122ebf4d92a3f94402041729d77905e6c0c0 |
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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
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3f3913550c10792edb8aecf66cc83c3db5c8b311 |
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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
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61ee0bbb5b87fb5c4c3dc219868d52743def3d2b |
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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
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75279904202357565cf5a1cb11148d01f42b4569 |
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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
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eedcb9525ba5befee2ba6ebb7a9ee3f13395c2a3 |
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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
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9a13f36cddaad01350bdb5f000167811a1d753c9 |
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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
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