Performance is one of the many architecture quality attributes, but is a hot one. Performant systems are required everywhere. Performance bottlenecks can be found anywhere. Front-end, back-end, data-tier, infrastructure. In this talk, i will outline a reference approach from my experience that helped me a lot of times in designing and assessing various systems. We will speak about performance tactics, principles, patterns and anti-patterns. If you are an experienced engineer of your field, you should already know most of these. However, I will structure it in a way that will allow you to sketch a checklist for practical usage. Let's check if you have thought about these small things in your software development process, and may be you will learn something new from me ;)