This is the earliest version of my talk about the internal workings of Doctrine ORM and how they relate to your code when using it. I mostly explain things inside the Unit Of Work, e.g. Object Hashes, Change Sets and Commit Order. The live demo showcasing fetch modes and query optimization is not included and the gifs are missing as well (sorry).
Please keep in mind that this is kind of a sneak preview based on the ground work for the "actual" talk and the final slides will look nothing like this. I figured it might be interesting for people to see how the slides will evolve over time.