Fast memory state synchronization for virtualization-based fault tolerance

9 years 4 months ago
Fast memory state synchronization for virtualization-based fault tolerance
Virtualization provides the possibility of whole machine migration and thus enables a new form of fault tolerance that is completely transparent to applications and operating systems. While initial prototypes show promise, virtualizationbased fault-tolerant architecture still experiences substantial performance overhead especially for data-intensive workloads. The main performance challenge of virtualizationbased fault tolerance is how to synchronize the memory states of the Master and Slave in a way that minimizes the end-to-end impact on the application performance. This paper describes three optimization techniques for memory state synchronization: fine-grained dirty region identification, speculative state transfer, and synchronization traffic reduction using active slave, and presents a comprehensive performance study of these techniques under three realistic workloads, the TPC-E benchmark, the SPECsfs 2008 CIFS benchmark, and a Microsoft Exchange workload. We show that these ...
Maohua Lu, Tzi-cker Chiueh
Added 20 May 2010
Updated 20 May 2010
Type Conference
Year 2009
Where DSN
Authors Maohua Lu, Tzi-cker Chiueh
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