在Android中调试线程 - 如何实时查看队列中的线程数等

I'm loading a bunch of images using AsyncTasks, creating bitmaps. Lots of recycling views going on etc. Without going into the gory details, I would like to know if there is any way I can get some realtime stats on threads that might be helpful. In particular what I am noticing is that the doInBackground runs really fast once it gets kicked off, but it seems they it takes a while for these tasks to run. So I was wondering how I can know how many threads are running at a given time. I have seen the dreaded 128 limit on thread exception with 10 in queue, but thats once there is an overload, I would like to be able to watch this as the program is running. Hopefully this visibility will tell me something. BTW, I did try bumping of the thread priority within the doInBackground() but again its really not that it is not fast once it runs, its that it does not get scheduled to run fast. I'm on Android Studio, what kind of tools are available? I'm loading a bunch of images using AsyncTasks,