Programming in Ruby is undoubtedly fun and productive - however, it isn't always straightforward when your program will go under high load. Ruby has its unique strengths and weaknesses. We will discuss and compare them with other languages, through our experiences in ISUCON - the eight-hour web app tuning contest.

Come see how Ruby can be performative - why we love this highly hackable language, how we measure CRuby performance, and what tools we have built to profile our code!