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2011
IEEE

Virtualizing performance asymmetric multi-core systems

8 years 2 months ago
Virtualizing performance asymmetric multi-core systems
Performance-asymmetric multi-cores consist of heterogeneous cores, which support the same ISA, but have different computing capabilities. To maximize the throughput of asymmetric multi-core systems, operating systems are responsible for scheduling threads to different types of cores. However, system virtualization poses a challenge for such asymmetric multi-cores, since virtualization hides the physical heterogeneity from guest operating systems. In this paper, we explore the design space of hypervisor schedulers for asymmetric multi-cores, which do not require asymmetry-awareness from guest operating systems. The proposed scheduler characterizes the efficiency of each virtual core, and map the virtual core to the most area-efficient physical core. In addition to the overall system throughput, we consider two important aspects of virtualizing asymmetric multi-cores: performance fairness among virtual machines and performance scalability for changing availability of fast and slow cor...
Youngjin Kwon, Changdae Kim, Seungryoul Maeng, Jae
Added 21 Aug 2011
Updated 21 Aug 2011
Type Journal
Year 2011
Where ISCA
Authors Youngjin Kwon, Changdae Kim, Seungryoul Maeng, Jaehyuk Huh
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