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copied!<p>This is a work in progress, but this is what I don't understand:</p> <pre><code>ActivityManager activityManager = (ActivityManager) context.getSystemService(ACTIVITY_SERVICE); MemoryInfo memoryInfo = new ActivityManager.MemoryInfo(); activityManager.getMemoryInfo(memoryInfo); Log.i(TAG, " memoryInfo.availMem " + memoryInfo.availMem + "\n" ); Log.i(TAG, " memoryInfo.lowMemory " + memoryInfo.lowMemory + "\n" ); Log.i(TAG, " memoryInfo.threshold " + memoryInfo.threshold + "\n" ); List<RunningAppProcessInfo> runningAppProcesses = activityManager.getRunningAppProcesses(); Map<Integer, String> pidMap = new TreeMap<Integer, String>(); for (RunningAppProcessInfo runningAppProcessInfo : runningAppProcesses) { pidMap.put(runningAppProcessInfo.pid, runningAppProcessInfo.processName); } Collection<Integer> keys = pidMap.keySet(); for(int key : keys) { int pids[] = new int[1]; pids[0] = key; android.os.Debug.MemoryInfo[] memoryInfoArray = activityManager.getProcessMemoryInfo(pids); for(android.os.Debug.MemoryInfo pidMemoryInfo: memoryInfoArray) { Log.i(TAG, String.format("** MEMINFO in pid %d [%s] **\n",pids[0],pidMap.get(pids[0]))); Log.i(TAG, " pidMemoryInfo.getTotalPrivateDirty(): " + pidMemoryInfo.getTotalPrivateDirty() + "\n"); Log.i(TAG, " pidMemoryInfo.getTotalPss(): " + pidMemoryInfo.getTotalPss() + "\n"); Log.i(TAG, " pidMemoryInfo.getTotalSharedDirty(): " + pidMemoryInfo.getTotalSharedDirty() + "\n"); } } </code></pre> <p>Why isn't the PID mapped to the result in activityManager.getProcessMemoryInfo()? Clearly you want to make the resulting data meaningful, so why has Google made it so difficult to correlate the results? The current system doesn't even work well if I want to process the entire memory usage since the returned result is an array of android.os.Debug.MemoryInfo objects, but none of those objects actually tell you what pids they are associated with. If you simply pass in an array of all pids, you will have no way to understand the results. As I understand it's use, it makes it meaningless to pass in more than one pid at a time, and then if that's the case, why make it so that activityManager.getProcessMemoryInfo() only takes an int array?</p>

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