Abstract: In a data center, components of a server are located on a different circuit board than the processor. For example, components such as a network interface controller, storage devices, power supply, and memory are located on one or more circuit boards different than the circuit board on which the processor is located. Having server components on different circuit boards allows the components to be updated on different schedules, reducing resource consumption caused from tying component updates to processor updates. Locating server components on separate server boards also allows virtualization of server components included in a server rack.

Abstract: Technologies are described herein for regulating memory bandwidth usage in virtual machines via CPU scheduling. A virtual machine monitor (“VMM”) executing on a host computer detects excessive memory bandwidth usage by programs executing in a virtual machine on a processor of the host computer. The VMM may detect excessive memory bandwidth usage by monitoring cache-misses occurring in the processor, for example. Upon detecting excessive memory bandwidth usage, the VMM penalizes the virtual machine currently executing on the processor through the CPU-scheduling algorithm utilized to allocate processor time among the virtual machines.

Abstract: In a data center, components of a server are located on a different circuit board than the processor. For example, components such as a network interface controller, storage devices, power supply, and memory are located on one or more circuit boards different than the circuit board on which the processor is located. Having server components on different circuit boards allows the components to be updated on different schedules, reducing resource consumption caused from tying component updates to processor updates. Locating server components on separate server boards also allows virtualization of server components included in a server rack.