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
135. Tapestry of Light and Dark Problem In a building with uniform light level, there are few “places” which function as effective settings for human events. This happens because, to a large extent, the places which make effective settings are defined by light. Solution Create alternating areas of light and dark throughout the building, in such a way that people naturally walk toward the light, whenever they are going to important places: seats, entrances, stairs, passages, places of special beauty, and make other areas darker, to increase the contrast. Christopher Alexander, Murray Silverstein & Sara Ishikawa, A Pattern Language Einmal Ist Keinmal darknesslight