Hypervisor-based fault tolerance
SOSP '95 Proceedings of the fifteenth ACM symposium on Operating systems principles
A low-bandwidth network file system
SOSP '01 Proceedings of the eighteenth ACM symposium on Operating systems principles
Memory resource management in VMware ESX server
ACM SIGOPS Operating Systems Review - OSDI '02: Proceedings of the 5th symposium on Operating systems design and implementation
A "flight data recorder" for enabling full-system multiprocessor deterministic replay
Proceedings of the 30th annual international symposium on Computer architecture
Fast transparent migration for virtual machines
ATEC '05 Proceedings of the annual conference on USENIX Annual Technical Conference
Live migration of virtual machines
NSDI'05 Proceedings of the 2nd conference on Symposium on Networked Systems Design & Implementation - Volume 2
Multi-probe LSH: efficient indexing for high-dimensional similarity search
VLDB '07 Proceedings of the 33rd international conference on Very large data bases
Execution replay of multiprocessor virtual machines
Proceedings of the fourth ACM SIGPLAN/SIGOPS international conference on Virtual execution environments
Remus: high availability via asynchronous virtual machine replication
NSDI'08 Proceedings of the 5th USENIX Symposium on Networked Systems Design and Implementation
Paratus: Instantaneous Failover via Virtual Machine Replication
GCC '09 Proceedings of the 2009 Eighth International Conference on Grid and Cooperative Computing
Difference engine: harnessing memory redundancy in virtual machines
Communications of the ACM
I/O Deduplication: Utilizing content similarity to improve I/O performance
ACM Transactions on Storage (TOS)
Satori: enlightened page sharing
USENIX'09 Proceedings of the 2009 conference on USENIX Annual technical conference
The design of a practical system for fault-tolerant virtual machines
ACM SIGOPS Operating Systems Review
Virtualization performance: perspectives and challenges ahead
ACM SIGOPS Operating Systems Review
Exploiting Data Deduplication to Accelerate Live Virtual Machine Migration
CLUSTER '10 Proceedings of the 2010 IEEE International Conference on Cluster Computing
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Checkpoint-recovery based Virtual Machine (VM) replication is an emerging approach towards accommodating VM installations with high availability. However, it comes with the price of significant performance degradation of the application executed in the VM due to the large amount of state that needs to be synchronized between the primary and the backup machines. It is therefore critical to find new ways for attaining good performance, and at the same time, maintaining fault tolerant execution. In this paper, we present a novel approach to improve the performance of services deployed over replicated virtual machines by exploiting data similarity within the VM's memory image to reduce the network traffic during synchronization. For identifying similar memory areas, we propose a bit density based hash function, upon which, we build a content addressable hash table. We present a quantitative analysis on the degree of similarity we found in various workloads, and introduce a lightweight compression method, which, compared to existing replication techniques, reduces network traffic by up to 80% and yields a performance improvement over 90% for certain latency sensitive applications.