You think you know all there is about building apps for the JVM. You’ve used all the cool tools. You’ve written your own persistence library or web frameworks. Maybe you’ve even implemented a JVM language. But do you really know what happens to your code after you hand it off to the JVM? This JAXconf talk from the JRuby Guy Charlie Nutter will explore the guts of the OpenJDK VM, Hotspot. He’ll discuss how it the JIT in the JVM works and how to monitor it, how to find problems with the output or resulting assembly code, as well as dumping assembly. Filming Courtesy of Marakana Tech TV
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