Marcus Lagergren holds a M.Sc. in computer science from the Royal Institute of Technology in Stockholm, Sweden. He has a background in computer security but has worked with runtimes since 1999. Marcus Lagergren was one of the founding members of Appeal Virtual Machines, the company that developed JRockit. Marcus has been team lead and architect for the JRockit code generators and has been involved in pretty much every other aspect of the JRockit JVM internals. Since 2007 Marcus works for Oracle on fast Virtualization technology. Marcus lives in Stockholm with his wife and two daughters. He likes power tools, heavy metal and scuba diving.