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author | Daniel Sandler <dsandler@android.com> | 2013-06-14 20:17:30 -0400 |
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committer | Daniel Sandler <dsandler@android.com> | 2013-06-21 01:16:27 -0400 |
commit | b9eb2865af05d9ade572e71934a9e6a50421aa7d (patch) | |
tree | ff4515d45eff0002b7025ca1838a22be60e084b9 /src/com/android/launcher3/MemoryTracker.java | |
parent | 211667e4c2efc6b0b7c5037aca77eecd50bd823d (diff) | |
download | android_packages_apps_Trebuchet-b9eb2865af05d9ade572e71934a9e6a50421aa7d.tar.gz android_packages_apps_Trebuchet-b9eb2865af05d9ade572e71934a9e6a50421aa7d.tar.bz2 android_packages_apps_Trebuchet-b9eb2865af05d9ade572e71934a9e6a50421aa7d.zip |
Memory tracking is now handled by a service.
Multiple processes may be tracked and viewed simultaneously.
Also, some changes to the graph:
* show uss and pss together
* adjust opacity controls
Change-Id: I20eebaa8cc8faf78b46af2a35d71ee538207f02b
Diffstat (limited to 'src/com/android/launcher3/MemoryTracker.java')
-rw-r--r-- | src/com/android/launcher3/MemoryTracker.java | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/src/com/android/launcher3/MemoryTracker.java b/src/com/android/launcher3/MemoryTracker.java new file mode 100644 index 000000000..600344e50 --- /dev/null +++ b/src/com/android/launcher3/MemoryTracker.java @@ -0,0 +1,158 @@ +/* + * Copyright (C) 2013 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package com.android.launcher3; + +import android.app.ActivityManager; +import android.app.Service; +import android.content.Context; +import android.content.Intent; +import android.net.Uri; +import android.os.*; +import android.util.Log; +import android.util.LongSparseArray; + +import java.util.ArrayList; + +public class MemoryTracker extends Service { + public static final String TAG = MemoryTracker.class.getSimpleName(); + public static final String ACTION_START_TRACKING = "com.android.launcher3.action.START_TRACKING"; + + private static final long UPDATE_RATE = 5000; + + private static final int MSG_START = 1; + private static final int MSG_STOP = 2; + private static final int MSG_UPDATE = 3; + + public static class ProcessMemInfo { + public int pid; + public String name; + public long currentPss, currentUss; + public long[] pss = new long[256]; + public long[] uss = new long[256]; + //= new Meminfo[(int) (30 * 60 / (UPDATE_RATE / 1000))]; // 30 minutes + public long max = 1; + public int head = 0; + public ProcessMemInfo(int pid, String name) { + this.pid = pid; + this.name = name; + } + }; + public final LongSparseArray<ProcessMemInfo> mData = new LongSparseArray<ProcessMemInfo>(); + public final ArrayList<Long> mPids = new ArrayList<Long>(); + private int[] mPidsArray = new int[0]; + + Handler mHandler = new Handler() { + @Override + public void handleMessage(Message m) { + switch (m.what) { + case MSG_START: + mHandler.removeMessages(MSG_UPDATE); + mHandler.sendEmptyMessage(MSG_UPDATE); + break; + case MSG_STOP: + mHandler.removeMessages(MSG_UPDATE); + break; + case MSG_UPDATE: + update(); + mHandler.removeMessages(MSG_UPDATE); + mHandler.sendEmptyMessageDelayed(MSG_UPDATE, UPDATE_RATE); + break; + } + } + }; + + ActivityManager mAm; + + public ProcessMemInfo getMemInfo(int pid) { + return mData.get(pid); + } + + public int[] getTrackedProcesses() { + return mPidsArray; + } + + public void startTrackingProcess(int pid, String name) { + mPids.add(new Long(pid)); + final int N = mPids.size(); + mPidsArray = new int[N]; + StringBuffer sb = new StringBuffer("Now tracking processes: "); + for (int i=0; i<N; i++) { + final int p = mPids.get(i).intValue(); + mPidsArray[i] = p; + sb.append(p); sb.append(" "); + } + mData.put(pid, new ProcessMemInfo(pid, name)); + Log.v(TAG, sb.toString()); + } + + void update() { + Debug.MemoryInfo[] dinfos = mAm.getProcessMemoryInfo(mPidsArray); + for (int i=0; i<dinfos.length; i++) { + Debug.MemoryInfo dinfo = dinfos[i]; + final long pid = mPids.get(i).intValue(); + final ProcessMemInfo info = mData.get(pid); + info.head = (info.head+1) % info.pss.length; + info.pss[info.head] = info.currentPss = dinfo.getTotalPss(); + info.uss[info.head] = info.currentUss = dinfo.getTotalPrivateDirty(); + if (info.currentPss > info.max) info.max = info.currentPss; + if (info.currentUss > info.max) info.max = info.currentUss; + //Log.v(TAG, "update: pid " + pid + " pss=" + info.currentPss + " uss=" + info.currentUss); + } + + // XXX: notify listeners + } + + @Override + public void onCreate() { + mAm = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE); + } + + @Override + public void onDestroy() { + mHandler.sendEmptyMessage(MSG_STOP); + } + + @Override + public int onStartCommand(Intent intent, int flags, int startId) { + Log.i(TAG, "Received start id " + startId + ": " + intent); + + if (ACTION_START_TRACKING.equals(intent.getAction())) { + final Uri uri = intent.getData(); + final int pid = intent.getIntExtra("pid", -1); + final String name = intent.getStringExtra("name"); + startTrackingProcess(pid, name); + } + + mHandler.sendEmptyMessage(MSG_START); + + return START_STICKY; + } + + public class MemoryTrackerInterface extends Binder { + MemoryTracker getService() { + return MemoryTracker.this; + } + } + + private final IBinder mBinder = new MemoryTrackerInterface(); + + public IBinder onBind(Intent intent) { + mHandler.sendEmptyMessage(MSG_START); + + return mBinder; + } +} |