Explore the new JVM JIT compiler, Graal, in this comprehensive conference talk. Discover how to utilize Graal with JDK 9, compile an upstream version, and understand its implications for benchmarking and production use. Learn about the Java-based nature of Graal and its unique properties compared to existing HotSpot JIT compilers. Delve into topics such as JEP 317 and JEP 243, C1 vs C2 comparisons, and practical demonstrations including running benchmarks, bootstrapping, heap usage, and compiler execution. Gain insights from the Twitter VM team's experience and understand why Graal is a significant development in JVM technology.