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In this lesson we talk about Data-Oriented Design vs. Object Oriented Programming (which is what we have been doing so far) and some of DoD's (performance) benefits.

As usual we focus on practical lessons to properly understand the concepts presented. However, in this case I feel it's valuable to take some time to watch some of the amazing Talks given on the topic of Data-Oriented Design. These talks take more time explaining why memory access is so critical in creating high performance (game) code.

References

You can start with Mike Acton's talk as it's often referenced in the other talks and articles.

• Start HERE: CppCon 2014: Mike Acton "Data-Oriented Design and C++"
• Nic Barker - Intro to Data Oriented Design for Games
  
• Andrew Kelley: A Practical Guide to Applying Data Oriented Design (DoD)

More excellent talks on the subject:

• Pitfalls of Object Oriented Programming, Revisited - Tony Albrecht
  • Found the slides here (camera is often not focused on the slides during talk)
• Scott Meyers: Cpu Caches and Why You Care
• More Speed & Simplicity: Practical Data-Oriented Design in C++ - Vittorio Romeo
• Article: Data-Oriented Design (Or Why You Might Be Shooting Yourself in The Foot With OOP)