1 /* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.server.am; 18 19 import android.os.SystemClock; 20 import android.util.ArrayMap; 21 import android.util.TimeUtils; 22 23 import java.io.PrintWriter; 24 import java.util.ArrayList; 25 import java.util.Collections; 26 import java.util.Comparator; 27 28 public final class BroadcastStats { 29 final long mStartRealtime; 30 final long mStartUptime; 31 long mEndRealtime; 32 long mEndUptime; 33 final ArrayMap<String, ActionEntry> mActions = new ArrayMap<>(); 34 35 static final Comparator<ActionEntry> ACTIONS_COMPARATOR = new Comparator<ActionEntry>() { 36 @Override public int compare(ActionEntry o1, ActionEntry o2) { 37 if (o1.mTotalDispatchTime < o2.mTotalDispatchTime) { 38 return -1; 39 } 40 if (o1.mTotalDispatchTime > o2.mTotalDispatchTime) { 41 return 1; 42 } 43 return 0; 44 } 45 }; 46 47 static final class ActionEntry { 48 final String mAction; 49 final ArrayMap<String, PackageEntry> mPackages = new ArrayMap<>(); 50 int mReceiveCount; 51 int mSkipCount; 52 long mTotalDispatchTime; 53 long mMaxDispatchTime; 54 ActionEntry(String action)55 ActionEntry(String action) { 56 mAction = action; 57 } 58 } 59 60 static final class PackageEntry { 61 int mSendCount; 62 } 63 BroadcastStats()64 public BroadcastStats() { 65 mStartRealtime = SystemClock.elapsedRealtime(); 66 mStartUptime = SystemClock.uptimeMillis(); 67 } 68 addBroadcast(String action, String srcPackage, int receiveCount, int skipCount, long dispatchTime)69 public void addBroadcast(String action, String srcPackage, int receiveCount, 70 int skipCount, long dispatchTime) { 71 ActionEntry ae = mActions.get(action); 72 if (ae == null) { 73 ae = new ActionEntry(action); 74 mActions.put(action, ae); 75 } 76 ae.mReceiveCount += receiveCount; 77 ae.mSkipCount += skipCount; 78 ae.mTotalDispatchTime += dispatchTime; 79 if (ae.mMaxDispatchTime < dispatchTime) { 80 ae.mMaxDispatchTime = dispatchTime; 81 } 82 PackageEntry pe = ae.mPackages.get(srcPackage); 83 if (pe == null) { 84 pe = new PackageEntry(); 85 ae.mPackages.put(srcPackage, pe); 86 } 87 pe.mSendCount++; 88 } 89 dumpStats(PrintWriter pw, String prefix, String dumpPackage)90 public boolean dumpStats(PrintWriter pw, String prefix, String dumpPackage) { 91 boolean printedSomething = false; 92 ArrayList<ActionEntry> actions = new ArrayList<>(mActions.size()); 93 for (int i=mActions.size()-1; i>=0; i--) { 94 actions.add(mActions.valueAt(i)); 95 } 96 Collections.sort(actions, ACTIONS_COMPARATOR); 97 for (int i=actions.size()-1; i>=0; i--) { 98 ActionEntry ae = actions.get(i); 99 if (dumpPackage != null && !ae.mPackages.containsKey(dumpPackage)) { 100 continue; 101 } 102 printedSomething = true; 103 pw.print(prefix); 104 pw.print(ae.mAction); 105 pw.println(":"); 106 pw.print(prefix); 107 pw.print(" Number received: "); 108 pw.print(ae.mReceiveCount); 109 pw.print(", skipped: "); 110 pw.println(ae.mSkipCount); 111 pw.print(prefix); 112 pw.print(" Total dispatch time: "); 113 TimeUtils.formatDuration(ae.mTotalDispatchTime, pw); 114 pw.print(", max: "); 115 TimeUtils.formatDuration(ae.mMaxDispatchTime, pw); 116 pw.println(); 117 for (int j=ae.mPackages.size()-1; j>=0; j--) { 118 pw.print(prefix); 119 pw.print(" Package "); 120 pw.print(ae.mPackages.keyAt(j)); 121 pw.print(": "); 122 PackageEntry pe = ae.mPackages.valueAt(j); 123 pw.print(pe.mSendCount); 124 pw.println(" times"); 125 } 126 } 127 return printedSomething; 128 } 129 dumpCheckinStats(PrintWriter pw, String dumpPackage)130 public void dumpCheckinStats(PrintWriter pw, String dumpPackage) { 131 pw.print("broadcast-stats,1,"); 132 pw.print(mStartRealtime); 133 pw.print(","); 134 pw.print(mEndRealtime == 0 ? SystemClock.elapsedRealtime() : mEndRealtime); 135 pw.print(","); 136 pw.println((mEndUptime == 0 ? SystemClock.uptimeMillis() : mEndUptime) - mStartUptime); 137 for (int i=mActions.size()-1; i>=0; i--) { 138 ActionEntry ae = mActions.valueAt(i); 139 if (dumpPackage != null && !ae.mPackages.containsKey(dumpPackage)) { 140 continue; 141 } 142 pw.print("a,"); 143 pw.print(mActions.keyAt(i)); 144 pw.print(","); 145 pw.print(ae.mReceiveCount); 146 pw.print(","); 147 pw.print(ae.mSkipCount); 148 pw.print(","); 149 pw.print(ae.mTotalDispatchTime); 150 pw.print(","); 151 pw.print(ae.mMaxDispatchTime); 152 pw.println(); 153 for (int j=ae.mPackages.size()-1; j>=0; j--) { 154 pw.print("p,"); 155 pw.print(ae.mPackages.keyAt(j)); 156 PackageEntry pe = ae.mPackages.valueAt(j); 157 pw.print(","); 158 pw.print(pe.mSendCount); 159 pw.println(); 160 } 161 } 162 } 163 } 164