06107639

j

06107639 Wang, Xiaolin Wen, Xiang Li, Yechen Wang, Zhenlin Dynamic cache partitioning based on hot page migration. Front. Comput. Sci. 6, No. 4, 363-372 (2012). 2012 Higher Education Press, Beijing; Springer, Berlin EN cache partitioning hot page migration dynamic cache partitioning virtualization virtual machine monitor

doi:10.1007/s11704-012-2099-6

Summary: Static cache partitioning can reduce inter-application cache interference and improve the composite performance of a cache-polluted application and a cache-sensitive application when they run on cores that share the last level cache in the same multi-core processor. In a virtualized system, since different applications might run on different virtual machines (VMs) in different time, it is inapplicable to partition the cache statically in advance. This paper proposes a dynamic cache partitioning scheme that makes use of hot page detection and page migration to improve the composite performance of co-hosted virtual machines dynamically according to prior knowledge of cache-sensitive applications. Experimental results show that the overhead of our page migration scheme is low, while in most cases, the composite performance is an improvement over free composition.