Implementing an Efficient Micro Virtual Machine Isaac Oscar Gariano Australian National University Implementing concurrent, garbage collected, and efficient dynamic languages is not easy. To aid with this, a new micro virtual machine, Mu, has been designed by an international team of students and academics. At ANU we are building an efficient implementation of Mu, Zebu, to demonstrate that Mu can efficiently deliver its abstractions. This talk will describe how Zebu works and present concrete results demonstrating its efficiency. Initial results indicate that Zebu will be a competitive target for managed languages such as RPython. It is our hope that Mu will be seen as a reasonable target for such languages, and will help ease and improve their implementation in an efficient manner.