Pretty much what the title says. All I understand is: green = good, yellow = pushing it, red = bad. Here's what I'm unclear on: when it's measuring memory pressure, does it measure the actual "pressure" vertically? And the horizontal is representative of time? So the higher it gets to the top, the worse the memory pressure is or was in that moment of time as it ticks by horizontally? I'm not having memory pressure issues as it's always green, but I don't really know what it would look like if there were problems, so I'm not exactly sure how to "read it". I'd like to know how to read it in case I have issues in the future. So, if anyone could explain this like I'm five years old, I'd appreciate it.