Abstract: Technologies are generally described for systems and methods configured to migrate a virtual machine. Some systems may include a memory configured to store terms of a service level agreement for a first virtual machine. The first computing device may determine the terms of the service level agreement for the first virtual machine. The first computing device may be configured to determine that the first virtual machine is operating on the first computing device using operating resources in violation of the terms of the service level agreement. The first computing device may be configured to identify a second virtual machine operating on the first computing device. The first computing device may be configured to migrate one of the first virtual machine or the second virtual machine to a second computing device in response to the determination of the violation.

Abstract: A streams manager monitors performance of a streaming application on a physical machine, and determines operators that are underperforming and operators that are overperforming. When the performance needs to be improved, the streams manager automatically modifies the flow graph to deploy one or more operators of the streaming application that are overperforming to a virtual machine in a cloud. Moving the overperforming operators off of the physical machine to a VM leaves additional resources for the underperforming operators that are left on the physical machine to improve performance of the streaming application.