Reflections on Software Performance An Article by Nelson Elhage blog.nelhage.com Performance is a feature Performance changes how users use software Performance needs effort throughout a project’s lifecycle Architecture strongly impacts performance Performance isn’t just about hot spots Performant foundations simplify architecture …we underrate performance when designing and building software. We have become accustomed to casually giving up factors of two or ten or more with our choices of tools and libraries, without asking if the benefits are worth it. performancesoftware
Customers don't know what they want At the end of the presentation someone asked whether he thought they should do some market research to see what customers wanted. "No," he replied, "because customers don't know what they want until we've shown them." Then he pulled out a device that was about the size of a desk diary. "Do you want to see something neat?" When he flipped it open, it turned out to be a mock-up of a computer that could fit in your lap, with a keyboard and a screen hinged together like a notebook. "This is my dream of what we will be making in the mid- to late eighties," he said. They were building a company that would invent the future. Walter Isaacson, Steve Jobs The iMac