Hi, I gave a talk at YOW! in Australia in December, and the video has been posted. The talk is "How Julia Goes Fast"; it's about details of design and implementation choices that help Julia get good performance. I think the actual practical affects are common knowledge on this list, so I don't know how useful this talk would be here.
Link: https://yow.eventer.com/yow-2014-1222/how-julia-goes-faster-by-leah-hanson-1694 If you notice any inaccuracies in the talk, please let me know. (Or if there's something not covered in the talk that's important to Julia's performance.) Best, Leah
