Hello all, Before any chastises me, I know fully how cached files work and how it can help previously opened apps function more quickly. However, I monitor my system closely and until 10.11.4 this cache was empty unless I've used my Mac extensively for days. For the past few days, this cached memory balloons up to 4.8GB at log in and keeps growing until I restart and it drops to 4.8GB. I have 16GB of RAM so it isn't a massive issue. My question is, did something change in 10.11.4? Is this a bug or how it should be working because this is not typical behavior based on past use. EDIT: I wanted to add that I realize unused RAM is wasted Ram and I don't really mind so long as system performance isn't affect, I'm just curious why there would be such a drastic difference.