我尝试使用建议的here的dalvikPss值查找每个正在运行的应用程序和服务的相对内存使用情况
如此处所建议，我需要总结所有正在运行的进程的PSS值。我的问题是，如何获取所有正在运行的进程的pss值？
我的理解是，Android中的服务和任务与流程相关联。这种理解正确吗？
如果是这样，将来自ActivityManager.getRunningAppProcesses返回的所有进程的PSS值相加会得出所有正在运行的进程（包括服务和任务）的总PSS吗？
最佳答案
获取所有正在运行的进程的PSS值：
用这个：
ActivityManager activityManager = (ActivityManager) context.getSystemService(ACTIVITY_SERVICE);
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");
}
}
或者，您也可以使用运行时获取PSS值：
final Process m_process = Runtime.getRuntime().exec("/system/bin/top -n 1");
final StringBuilder sbread = new StringBuilder();
BufferedReader bufferedReader = new BufferedReader(new
InputStreamReader(m_process.getInputStream()), 8192);