Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 18 of 18 for “"Xen"”.
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Performance benchmarking physical and virtual linux envrionments
… and can be independently shutdown and restarted. Xen is a form of paravirtualisation developed by the University of Cambridge Computer Laboratory and is available under both a free and commercial license. Performance results comparing Xen to native Linux as well as to other virtualisation tools …
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CloudVal: a framework for failure validation of virtualization environment in cloud infrastructure
… on injecting faults in the KVM hypervisor and XEN hypervisor, was conducted to show the viability of the framework. The study shows that due to the architectural differences between KVM and XEN, a direct comparison of the two virtualization systems is not feasible. In order to confidently weigh …
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Design and Implementation of the VirtuOS Operating System
… a prototype based on the Linux kernel and Xen hypervisor. We created and evaluated a network and a storage service domain. Our prototype retains compatibility with existing applications, can survive the failure of individual service domains while outperforming alternative approaches such as …
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xenCli
XenCli es un software que está orientado a la administración de máquinas virtuales dentro de un ambiente controlado como lo es el propio DomU o Xen. En este documento se explica y detalla las características de xenCli, proyecto desarrollado para la empresa Oracle, en su área de Cloud Operation …
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A multi-lineage in vitro mouse embryo model derived exclusively from mouse embryonic stem cells
… (TSCs) and extraembryonic endoderm stem cells (XEN cells)) in ETX embryos (embryo model composed of ESCs, TSCs and XEN cells) and iETX embryos (embryo model composed of ESCs, TSCs and induced XEN cells). While these integrated models have demonstrated greater developmental potentials, one …
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Dissecting Pluripotency and Mammalian Embryonic Development via Droplet Microfluidics
… ESCs with extraembryonic endoderm (XEN) cells. Co-encapsulation of these cell types led to the formation of self-organising aggregates in which the XEN cells surrounded an inner core of ES cells. These aggregates, termed EX-structures, exhibited deposition of a basal lamina, acquired …
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Resilire: Achieving High Availability Through Virtual Machine Live Migration
… techniques, their implementations in the Xen hypervisor and Linux operating system kernel, and experimental studies conducted using benchmarks (e.g., SPEC, NPB, Sysbench) and production applications (e.g., Apache webserver, SPECweb). We first present a technique for reducing VM migration …
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Design and Implementation of a Network Server in LibrettOS
… system based on rumprun unikernels and the Xen Hypervisor developed by Virginia Tech. The proposed network server is a service domain providing an L2 frame forwarding service for application domains and based on rumprun such that the existing device drivers of NetBSD can be leveraged with …
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On Improving the Security of Virtualized Systems through Unikernelized Driver Domain and Virtual Machine Monitor Compartmentalization and Specialization
… domains -- isolated VMs in a hypervisor such as Xen that run device drivers -- use general-purpose full-featured OSs (e.g., Linux), which has a large attack surface, evident by the increasing number of their common vulnerabilities and exposures (CVEs). We argue for using the unikernel operating …
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Autonomic Management And Performance Optimization For Cloud Computing Services
… time for online decision. Experiments on Xen-based virtual cluster with TPC-W benchmarks show that the framework can drive applications into a optimal configuration in less than 25 iterations.</p> <p>For cloud platform service, one of the key challenges is to efficiently adapt the offered …
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Optimizing Boot Times and Enhancing Binary Compatibility for Unikernels
… a solution for the first based on the popular Xen hypervisor, and demonstrates a significant performance benefit when running a large number of guest VMs. The HermiTux unikernel aims to overcome the second obstacle by providing the ability to run unmodified binaries as unikernels. This work …
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Providing application-aware reliability through OS/hypervisor-level techniques
… 4 processor and is also implemented in the Xen VMM. (The Xen hypervisor is recompiled for installing RMK, but the OS of a native system or a VM is not recompiled.) Error injection experiments show that our RMK detects all the crashes and system hangs, and VM-μCheckpoint successfully recovers …
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Live migration of user environments across wide area networks
… on migrating whole operating systems using the Xen virtual machine and provides a way to perform live migration of persistent storage as well as the network connections across subnets. These challenges have not been addressed previously in this scenario. In a virtual machine environment, …
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Aggregated service consolidation by multi-server virtualization
… concept was setup in the form of a testbed using Xen as the virtualization platform. Experiments carried out, showed that the downtime and migration time of the VoIP service were significantly reduced with minimal degradation on the call quality as perceived by the user during the live migration.
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Reducing deadline miss rate for grid workloads running in virtual machines: a deadline-aware and adaptive approach
… of various scheduling strategies used by the Xen hypervisor to measure the sensitivity of job performance to the amount of CPU and memory allocated under various configurations. However, virtualization overhead is also a critical factor in determining job execution times. Grid jobs have a …
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Nothing Matters: Answering the Question ‘Where’s the Art?’ through Ma and Gen
… void/interval’, while Gen (variants: Jen/Zjen/Xen/Zen) describes the experience of becoming such an interval. Using conceptual art as the core method of investigation and cultural pluralism as its philosophical framework, the practice was documented as a series of essays on relevant ideas, …
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Estrategias de paralización para la optimización de métodos computacionales en el descubrimiento de nuevos fármacos.
… del sistema. Entornos como (VMWARE, XEN) virtualizan todo el sistema y no solo una parte, siendo muy inadecuado en entornos de computación de alto rendimiento, ya que las restricciones a que deben someterse al ser un entorno compartido, introducen una sobrecarga que no es posible …