As technical leader you face a challenge: more traffic, more users, more connected systems and more features. The results can be lack of system performance. If you want to be ready for the day of doom, if you want to solve issues before business will get mad or just want to be the hero of the day, this is the workshop for you. In this workshop we'll cover all aspects of modern web systems and will analyze all the things that can go wrong. More important we will understand what is a clutter and what should be taken care of using a set of simple tools and steps. Among the covered items in this workshop: databases, your code, application servers, web servers, system aspects, storages, network and even the browser.