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Janus: Supporting heterogeneous power management in virtualized environments
- Janus: Supporting heterogeneous power management in virtualized environments
- Kim, Dae Hoon; Alian, Mohammad; Huh, Jaehyuk; Kim, Nam Sung
- DGIST Authors
- Kim, Dae Hoon
- Issue Date
- 2017 Symposium on Cloud Computing, SoCC 2017, 652
- The cloud servers have routinely adopted machine virtualization for high energy efficiency. Such virtualization notably improves energy efficiency not only through consolidation, but also through Dynamic Voltage/Frequency Scaling (DVFS). Thus, current hypervisors such as Xen and KVM support power management (PM) policies statically or dynamically setting a Voltage/Frequency (V/F) level, similar to ones deployed by the Linux. However, the current hypervisors can promote only a single PM policy (i.e., host governor) per physical core. This poses a unique challenge for VMs sharing a physical core and running applications with opposite runtime characteristics in a time-shared manner (i.e., heterogeneous VMs); note that the consolidation policy often encourages heterogeneous VMs to share a physical core, since such VMs use different resources in the system .
- Association for Computing Machinery, Inc
- Related Researcher
Kim, Dae Hoon
Computer Architecture and Systems Lab
Computer Architecture and Systems; Virtualization; Cloud Computing
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- Department of Information and Communication EngineeringComputer Architecture and Systems Lab2. Conference Papers
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