Running large web services, typically depends on too many layers of technology, and those end up by requiring deep skills in troubleshooting. We need to tackle slow web sites, monitor CPU and memory usage to finally detect dead objects lying around. Critical situations finally happen and long nights become recurrent. Parsing apps and server logs, but not enough to find out what was wrong. In this session, we'll see how effective telemetry, and a profiler, can be to your business, your skills and finally your personal life.