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GnssMetrics

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These metrics will pull different metrics that tell the performance of the gnss subsystem.

Metrics include:
Location reports
% of location failure
Num times GPS had to first fix
Mean time to first fix on signal
Num position accuracy logs
Mean position accuracy in meters
Num top 4 Cn0 messages
Mean top 4 average Cn0 (signal quality)
Num L5 top 4 Cn0 messages
Mean L5 top 4 average Cn0 (signal quality)
Num Satellite status messages received
Num of Satellites used in fix
L5 Satellite status messages received
L5 of Satellites used in fix

metric_id: 1111
gauge_metrics {
  data {
    bucket_info {
      atom {
        gnss_stats {
          location_reports: 12
          location_failure_reports: 3
          time_to_first_fix_reports: 2
          time_to_first_fix_milli_s: 43588
          position_accuracy_reports: 9
          position_accuracy_meters: 112
          top_four_average_cn0_reports: 31
          top_four_average_cn0_db_mhz: 734711
          l5_top_four_average_cn0_reports: 1
          l5_top_four_average_cn0_db_mhz: 21500
          sv_status_reports: 1015
          sv_status_reports_used_in_fix: 100
          l5_sv_status_reports: 7
          l5_sv_status_reports_used_in_fix: 0
        }
      }
      elapsed_timestamp_nanos: 537249375445
      start_bucket_elapsed_millis: 522186
      end_bucket_elapsed_millis: 549283
    }
  }
}
time_base_elapsed_nano_seconds: 9283624934
bucket_size_nano_seconds: 60000000000
is_active: true

Bug: 147910698
Test: On Device using test script and gnsslogger.apk
>  make statsd_testdrive
>  ./out/host/linux-x86/bin/statsd_testdrive <ATOM_ID>

Change-Id: I92461eb8533ec810bb67d76a25931295cfa1efbd
This commit is contained in:
Blake Kragten
2020-01-16 20:20:46 -08:00
parent c43a9482b5
commit 6ce382a372
3 changed files with 168 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files

80
cmds/statsd/src/atoms.proto
View File

@@ -396,7 +396,7 @@ message Atom {
}
// Pulled events will start at field 10000.
// Next: 10074
// Next: 10075
oneof pulled {
WifiBytesTransfer wifi_bytes_transfer = 10000 [(module) = "framework"];
WifiBytesTransferByFgBg wifi_bytes_transfer_by_fg_bg = 10001 [(module) = "framework"];
@@ -477,6 +477,7 @@ message Atom {
10072 [(module) = "framework"];
PackageNotificationChannelGroupPreferences package_notification_channel_group_preferences =
10073 [(module) = "framework"];
GnssStats gnss_stats = 10074 [(module) = "framework"];
}
// DO NOT USE field numbers above 100,000 in AOSP.
@@ -8475,20 +8476,71 @@ message SdkExtensionStatus {
* frameworks/base/services/core/java/com/android/server/am/CachedAppOptimizer.java
*/
message AppFreezeChanged {
// The type of event.
enum Action {
UNKNOWN = 0;
FREEZE_APP = 1;
UNFREEZE_APP = 2;
}
optional Action action = 1;
// The type of event.
enum Action {
UNKNOWN = 0;
FREEZE_APP = 1;
UNFREEZE_APP = 2;
}
optional Action action = 1;
// Pid of the process being frozen.
optional int32 pid = 2;
// Pid of the process being frozen.
optional int32 pid = 2;
// Name of the process being frozen.
optional string process_name = 3;
// Name of the process being frozen.
optional string process_name = 3;
// Time since last unfrozen.
optional int64 time_unfrozen_millis = 4;
// Time since last unfrozen.
optional int64 time_unfrozen_millis = 4;
}
/**
* Logs gnss stats from location service provider
*
* Pulled from:
* frameworks/base/location/java/com/android/internal/location/gnssmetrics/GnssMetrics.java
*/
message GnssStats {
// Number of location reports since boot
optional int64 location_reports = 1;
// Total pulled reports of Location failures since boot
optional int64 location_failure_reports = 2;
// Number of time to first fix reports since boot
optional int64 time_to_first_fix_reports = 3;
// Total pulled reported time to first fix (in milli-seconds) since boot
optional int64 time_to_first_fix_milli_s = 4;
// Number of position accuracy reports since boot
optional int64 position_accuracy_reports = 5;
// Total pulled reported position accuracy (in meters) since boot
optional int64 position_accuracy_meters = 6;
// Number of top 4 average CN0 reports since boot
optional int64 top_four_average_cn0_reports = 7;
// Total pulled reported of top 4 average CN0 (dB-mHz) since boot
optional int64 top_four_average_cn0_db_mhz = 8;
// Number of l5 top 4 average CN0 reports since boot
optional int64 l5_top_four_average_cn0_reports = 9;
// Total pulled reported of l5 top 4 average CN0 (dB-mHz) since boot
optional int64 l5_top_four_average_cn0_db_mhz = 10;
// Total number of sv status messages reports since boot
optional int64 sv_status_reports = 11;
// Total number of sv status messages reports, where sv is used in fix since boot
optional int64 sv_status_reports_used_in_fix = 12;
// Total number of L5 sv status messages reports since boot
optional int64 l5_sv_status_reports = 13;
// Total number of L5 sv status messages reports, where sv is used in fix since boot
optional int64 l5_sv_status_reports_used_in_fix = 14;
}

102
location/java/com/android/internal/location/gnssmetrics/GnssMetrics.java
View File

@@ -16,6 +16,8 @@
package com.android.internal.location.gnssmetrics;
import android.app.StatsManager;
import android.content.Context;
import android.location.GnssStatus;
import android.os.SystemClock;
import android.os.SystemProperties;
@@ -24,16 +26,19 @@ import android.server.location.ServerLocationProtoEnums;
import android.text.format.DateUtils;
import android.util.Base64;
import android.util.Log;
import android.util.StatsEvent;
import android.util.TimeUtils;
import com.android.internal.app.IBatteryStats;
import com.android.internal.location.nano.GnssLogsProto.GnssLog;
import com.android.internal.location.nano.GnssLogsProto.PowerMetrics;
import com.android.internal.os.BackgroundThread;
import com.android.internal.util.FrameworkStatsLog;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
/**
* GnssMetrics: Is used for logging GNSS metrics
@@ -96,7 +101,34 @@ public class GnssMetrics {
/** Total number of L5 sv status messages processed, where sv is used in fix */
private int mNumL5SvStatusUsedInFix;
public GnssMetrics(IBatteryStats stats) {
/* Statsd Logging Variables Section Start */
/** Location failure reports since boot used for statsd logging */
private Statistics mLocationFailureReportsStatistics;
/** Time to first fix milli-seconds since boot used for statsd logging */
private Statistics mTimeToFirstFixMilliSReportsStatistics;
/** Position accuracy meters since boot used for statsd logging */
private Statistics mPositionAccuracyMetersReportsStatistics;
/** Top 4 average CN0 (db-mHz) since boot used for statsd logging */
private Statistics mTopFourAverageCn0DbmHzReportsStatistics;
/** Top 4 average CN0 (db-mHz) L5 since boot used for statsd logging */
private Statistics mL5TopFourAverageCn0DbmHzReportsStatistics;
/** Total number of sv status reports processed since boot used for statsd logging */
private long mSvStatusReports;
/** Total number of L5 sv status reports processed since boot used for statsd logging */
private long mL5SvStatusReports;
/** Total number of sv status reports processed, where sv is used in fix since boot used for
* statsd logging */
private long mSvStatusReportsUsedInFix;
/** Total number of L5 sv status reports processed, where sv is used in fix since boot used for
* statsd logging */
private long mL5SvStatusReportsUsedInFix;
/** Stats manager service for reporting atoms */
private StatsManager mStatsManager;
/** Pull atom callback, this is called when atom pull request occurs */
private StatsPullAtomCallbackImpl mPullAtomCallback;
/* Statds Logging Variables Section End */
public GnssMetrics(Context context, IBatteryStats stats) {
mGnssPowerMetrics = new GnssPowerMetrics(stats);
mLocationFailureStatistics = new Statistics();
mTimeToFirstFixSecStatistics = new Statistics();
@@ -104,6 +136,13 @@ public class GnssMetrics {
mTopFourAverageCn0Statistics = new Statistics();
mTopFourAverageCn0StatisticsL5 = new Statistics();
reset();
mLocationFailureReportsStatistics = new Statistics();
mTimeToFirstFixMilliSReportsStatistics = new Statistics();
mPositionAccuracyMetersReportsStatistics = new Statistics();
mTopFourAverageCn0DbmHzReportsStatistics = new Statistics();
mL5TopFourAverageCn0DbmHzReportsStatistics = new Statistics();
mStatsManager = (StatsManager) context.getSystemService(Context.STATS_MANAGER);
registerGnssStats();
}
/**
@@ -112,9 +151,11 @@ public class GnssMetrics {
public void logReceivedLocationStatus(boolean isSuccessful) {
if (!isSuccessful) {
mLocationFailureStatistics.addItem(1.0);
mLocationFailureReportsStatistics.addItem(1.0);
return;
}
mLocationFailureStatistics.addItem(0.0);
mLocationFailureReportsStatistics.addItem(0.0);
}
/**
@@ -127,6 +168,7 @@ public class GnssMetrics {
if (numReportMissed > 0) {
for (int i = 0; i < numReportMissed; i++) {
mLocationFailureStatistics.addItem(1.0);
mLocationFailureReportsStatistics.addItem(1.0);
}
}
}
@@ -136,6 +178,7 @@ public class GnssMetrics {
*/
public void logTimeToFirstFixMilliSecs(int timeToFirstFixMilliSeconds) {
mTimeToFirstFixSecStatistics.addItem((double) (timeToFirstFixMilliSeconds / 1000));
mTimeToFirstFixMilliSReportsStatistics.addItem(timeToFirstFixMilliSeconds);
}
/**
@@ -143,6 +186,7 @@ public class GnssMetrics {
*/
public void logPositionAccuracyMeters(float positionAccuracyMeters) {
mPositionAccuracyMeterStatistics.addItem((double) positionAccuracyMeters);
mPositionAccuracyMetersReportsStatistics.addItem(positionAccuracyMeters);
}
/**
@@ -174,6 +218,8 @@ public class GnssMetrics {
}
top4AvgCn0 /= 4;
mTopFourAverageCn0Statistics.addItem(top4AvgCn0);
// Convert to mHz for accuracy
mTopFourAverageCn0DbmHzReportsStatistics.addItem(top4AvgCn0 * 1000);
}
}
/* Helper function to check if a SV is L5 */
@@ -191,14 +237,18 @@ public class GnssMetrics {
for (int i = 0; i < status.getSatelliteCount(); i++) {
if (status.hasCarrierFrequencyHz(i)) {
mNumSvStatus++;
mSvStatusReports++;
isL5 = isL5Sv(status.getCarrierFrequencyHz(i));
if (isL5) {
mNumL5SvStatus++;
mL5SvStatusReports++;
}
if (status.usedInFix(i)) {
mNumSvStatusUsedInFix++;
mSvStatusReportsUsedInFix++;
if (isL5) {
mNumL5SvStatusUsedInFix++;
mL5SvStatusReportsUsedInFix++;
}
}
}
@@ -233,6 +283,8 @@ public class GnssMetrics {
}
top4AvgCn0 /= 4;
mTopFourAverageCn0StatisticsL5.addItem(top4AvgCn0);
// Convert to mHz for accuracy
mL5TopFourAverageCn0DbmHzReportsStatistics.addItem(top4AvgCn0 * 1000);
}
return;
}
@@ -421,12 +473,14 @@ public class GnssMetrics {
private int mCount;
private double mSum;
private double mSumSquare;
private long mLongSum;
/** Resets statistics */
public void reset() {
mCount = 0;
mSum = 0.0;
mSumSquare = 0.0;
mLongSum = 0;
}
/** Adds an item */
@@ -434,6 +488,7 @@ public class GnssMetrics {
mCount++;
mSum += item;
mSumSquare += item * item;
mLongSum += item;
}
/** Returns number of items added */
@@ -456,6 +511,11 @@ public class GnssMetrics {
}
return 0;
}
/** Returns long sum */
public long getLongSum() {
return mLongSum;
}
}
/* Class for handling GNSS power related metrics */
@@ -561,4 +621,44 @@ public class GnssMetrics {
return GnssMetrics.GPS_SIGNAL_QUALITY_POOR;
}
}
private void registerGnssStats() {
mPullAtomCallback = new StatsPullAtomCallbackImpl();
mStatsManager.registerPullAtomCallback(
FrameworkStatsLog.GNSS_STATS,
null, // use default PullAtomMetadata values
BackgroundThread.getExecutor(), mPullAtomCallback);
}
/**
* Stats Pull Atom Callback
* Calls the pull method to fill out gnss stats
*/
private class StatsPullAtomCallbackImpl implements StatsManager.StatsPullAtomCallback {
@Override
public int onPullAtom(int atomTag, List<StatsEvent> data) {
if (atomTag != FrameworkStatsLog.GNSS_STATS) {
throw new UnsupportedOperationException("Unknown tagId = " + atomTag);
}
StatsEvent e = StatsEvent.newBuilder()
.setAtomId(atomTag)
.writeLong(mLocationFailureReportsStatistics.getCount())
.writeLong(mLocationFailureReportsStatistics.getLongSum())
.writeLong(mTimeToFirstFixMilliSReportsStatistics.getCount())
.writeLong(mTimeToFirstFixMilliSReportsStatistics.getLongSum())
.writeLong(mPositionAccuracyMetersReportsStatistics.getCount())
.writeLong(mPositionAccuracyMetersReportsStatistics.getLongSum())
.writeLong(mTopFourAverageCn0DbmHzReportsStatistics.getCount())
.writeLong(mTopFourAverageCn0DbmHzReportsStatistics.getLongSum())
.writeLong(mL5TopFourAverageCn0DbmHzReportsStatistics.getCount())
.writeLong(mL5TopFourAverageCn0DbmHzReportsStatistics.getLongSum())
.writeLong(mSvStatusReports)
.writeLong(mSvStatusReportsUsedInFix)
.writeLong(mL5SvStatusReports)
.writeLong(mL5SvStatusReportsUsedInFix)
.build();
data.add(e);
return StatsManager.PULL_SUCCESS;
}
}
}

2
services/core/java/com/android/server/location/GnssLocationProvider.java
View File

@@ -714,7 +714,7 @@ public class GnssLocationProvider extends AbstractLocationProvider implements
}
};
mGnssMetrics = new GnssMetrics(mBatteryStats);
mGnssMetrics = new GnssMetrics(mContext, mBatteryStats);
mNtpTimeHelper = new NtpTimeHelper(mContext, mLooper, this);
GnssSatelliteBlacklistHelper gnssSatelliteBlacklistHelper =
new GnssSatelliteBlacklistHelper(mContext,