I wrote a post about Performance Hot Spots on Shaping Software. This is a follow up to my post on Security Hot Spots. Hot spots are a way to turn Pareto's principle (the 80/20 rule) into action. By focusing on hot spots, you find the levers in the system that produce the greatest results. You can also use the Performance Hot Spots to help you find and share principles, patterns, and practices for performance. Read my post to find the what, why and how of Performance Hot Spots.