Creating scalable web sites that can handle many simultaneous requests and still provide fast experience for each user is hard. Historically, the industry was not differentiating Scalability and Performance, but with emergence of front-end engineering, new field of Web Performance Optimization was born and it became critical to approach them separately.
Sergey Chernyshev (@sergeyche) compares these two directions of web engineering and describes the differences between them. He also covers current performance trends and describes different approaches to take in order to measure and analyze Web Performance in comparison to traditional methods that are successfully used to test scalability of web systems.
Talk given at New York Web Performance Meetup on March 27, 2013