So many of these problems are IO bound to begin with. In fact, I don't think I have ever had a problem that wasn't ultimately IO bound. Hence the need to spend

So many of these problems are IO bound to begin with. In fact, I don't think I have ever had a problem that wasn't ultimately IO bound. Hence the need to spend more time paying attention to the network infrastructure, and, ultimately, removing as much of it as possible from in between your storage and your compute infrastructure.