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
109. Long Thin House Problem The shape of a building has a great effect on the relative degrees of privacy and overcrowding in it, and this in turn has a critical effect on people’s comfort and well-being. Solution In small buildings, don’t cluster all the rooms together around each other; instead string out the rooms one after another, so that distance between each room is as great as it can be. You can do this horizontally—so that the plan becomes a thin, long rectangle; or you can do it vertically—so that the building becomes a tall narrow tower. In either case, the building can be surprisingly narrow and still work—8, 10, and 12 feet are all quite possible. Christopher Alexander, Murray Silverstein & Sara Ishikawa, A Pattern Language Einmal Ist KeinmalThe linear city