In Android 7.0 Google made undocumented changes and significantly restricted access to the proc file system. This means that once this new API level is reached it is no longer possible to retrieve information from processes. System Monitor running on devices with Android 7.0 will only show total CPU usage, System Monitor CPU usage, and memory usage, but not CPU usage for other processes. Running the app on a rooted device makes no difference.
MonitorSistema
