On my Mac at home that does not have an SSD when I wake it from sleep usually it'll be like oh while I was sleeping these events happen that it wants to tell you about the events that you either missed or that are upcoming. The little alarm clock guy will appear in my dock and start bouncing because it will grind away at my crappy spinning disk and just bounce there forever just bounce bounce below. That is an inappropriate amount of disk activity and waiting time to bring up a tiny yellow window that tells me which meetings I missed so God knows what it's doing but it's doing something terrible. My biggest P of outlook 2010 which I use for work has one of probably the most user hostile