OSv is a new open source operating system for the cloud. It is designed to run a single application per virtual machine and its tuned for applications running under the Java virtual machine. In this talk, we will introduce OSv, showcase its architecture, and explain performance and application management improvements. We will also talk about OSv specific improvements to the JVM that improve application performance in virtualized environments. Operating system developers, as well as application developers who deploy to the cloud, may enjoy the talk. No special expertise is required. * Why do we need a Cloud Operating System? * OSv design overview * JVM optimizations for OSv and the cloud * Management * Performance * Future