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Virtual machines and virtualized hardware have been around for over half a century. The commoditization of the x86 platform and its rapidly growing hardware capabilities have led to recent exponential growth in the use of virtualization both in the enterprise and high performance computing (HPC). The startup time of a virtualized environment is a key performance metric for high performance computing...
Modern virtualization technologies provides an optimal use of underused hardware resources by sharing them among virtual machines hosted on the same physical machine. These technologies hence have been broadly adopted in many areas, such as server consolidation, virtualized network test beds, etc. A large-scale network test bed is considered one of the useful tools for evaluating or verifying advanced...
The growing adoption of virtualization in the enterprise environment has resulted in a couple of huge benefits, however, this has not been without its attendant problems and anomalies, such as performance tuning and erratic performance metrics, unresponsive virtualized systems, crashed virtualized servers, misconfigured virtual hosting platforms, amongst others. The focus of this research was the...
Virtualization has been rapidly expanding its applications in numerous server and desktop environments to improve the utilization and manageability of physical systems. Such proliferation of virtualized systems opens a new opportunity to improve the scalability of future multi-core architectures. Among the scalability bottlenecks in multi-cores, cache coherence has been a critical problem. Although...
Virtualization technology is currently widely used due to its benefits on high resource utilization, flexible manageability and powerful system security. However, its use for high performance computing (HPC) is still not popular due to the unclearness of the virtualization overheads. It's worthy to evaluate the virtualization cost and to find the performance bottleneck when running HPC applications...
The PrivacyCA defined in Trusted Computing Group (TCG) specifications may be the performance bottleneck of trusted applications, because it needs to be involved in every transaction of attestation to maximize privacy and in a future trust-enabled Internet a PrivacyCA potentially has to serve millions of customers. In this paper we show how the scalability of PrivacyCA can be improved. In this context,...
The high cost of creating and maintaining software and hardware infrastructures for delivering services to businesses has led to a notable trend toward the use of third-party service providers, which rent out network presence, computation power, and data storage space to clients with infrastructural needs. These third party service providers can act as data stores as well as entire software suites...
In this paper we present results from test and quantitative analysis of leading hypervisors Xen, Kvm and Vmware. Our test comparison was carried out using benchmarks which can performance on the overall performance, performance isolation, and scalability of virtual machines running on these three hypervisors. To compare, we need to measure the efficiency of the virtualization technologies. We define...
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