I keep having a lot of "null" processes running...sometimes up to 12. I can use a system activity app to shut them off, and once I do that they will stay off for several hours, but then gradually return. I am using an iPad 3 WiFi/4G, running latest iOS software. I upgraded from an iPad 1, and have been using an iPad every day since they first released them. I have never seen this (null) issue before, it does seem to be taking of RAM, but it is difficult to tell.
Image below is from a system activity app. Anyone with any thoughts?