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Power-aware provisioning of virtual machines for real-time Cloud services

Kyong Hoon Kim, Anton Beloglazov, Rajkumar Buyya
2011 Concurrency and Computation  
In this work, we investigate power-aware provisioning of virtual machines for real-time services.  ...  Our approach is (i) to model a real-time service as a real-time virtual machine request; and (ii) to provision virtual machines in Cloud data centers using Dynamic Voltage Frequency Scaling (DVFS) schemes  ...  We define SRT-VM (Soft Real-Time Virtual Machine) as the soft real-time VM model.  ... 
doi:10.1002/cpe.1712 fatcat:ucqayjx6cfamlk65hdilesleyi

Biobjective VoIP Service Management in Cloud Infrastructure

Jorge M. Cortés-Mendoza, Andrei Tchernykh, Fermin A. Armenta-Cano, Pascal Bouvry, Alexander Yu. Drozdov, Loic Didelot
2016 Scientific Programming  
In this paper, we formulate the problem of scheduling of VoIP services in distributed cloud environments and propose a new model for biobjective optimization.  ...  We propose twenty call allocation strategies and evaluate their performance by comprehensive simulation analysis on real workload considering six months of the MIXvoip company service.  ...  Cheng et al. (2015) [18] present and compare the SRT-Xen scheduler with other four schedulers (Credit, Credit2, rtglobal, and rtpartition).  ... 
doi:10.1155/2016/5706790 fatcat:bkwp2te2nreq3ctqlkfrms7nme

Optimization of CPU Scheduling in Virtual Machine Environments

Venkataramanan Venkatesh, Université D'Ottawa / University Of Ottawa, Université D'Ottawa / University Of Ottawa
2015
Server virtualization is facilitated by the usage of hypervisors, among which Xen is widely preferred because of its dual virtualization modes, virtual machine migration support and scalability.  ...  This research work involves an analysis of the CPU scheduling algorithms incorporated into Xen, on the basis of the algorithm's performance in different workload scenarios.  ...  Figure 31 : 31 Domain states or VM states in Xen Hypervisor hanced scheduler SRT-Xen which promotes the improvement in soft real-time domain's performance compared to the existing schedulers in Xen.  ... 
doi:10.20381/ruor-6538 fatcat:3jizbaz3pvhs7bnhiezmw5rhlm

Design of fault-tolerant virtual execution environments for cyber-physical systems

Boguslaw Jablkowski, Technische Universität Dortmund, Technische Universität Dortmund
2019
With respect to the technological aspects, it investigates problems and proposes solutions related to timing properties of a virtualized execution platform as well as the thereon based high availability  ...  Regarding the methodological aspects, it discusses models and methods for the planing of safe and efficient virtualized CPS compute and control clusters, proposes architectures for the development and  ...  architecture of Xen [10] -a popular, performant and open-source Virtual Machine Monitor (VMM) -identify its shortcomings with respect to real-time capabilities and extend it with a suite of real-time  ... 
doi:10.17877/de290r-20133 fatcat:jcgwmbcpu5amvj45gujapji2ty

Microkernel Mechanisms for Improving the Trustworthiness of Commodity Hardware

Yanyan Shen, Kevin Elphinstone
2015 2015 11th European Dependable Computing Conference (EDCC)  
or CC-RCoE), and conclude that the approach is applicable for real-world applications.  ...  RCoE treats each replica of the software system as a state machine and ensures that the replicas start from the same initial state, observe consistent inputs, perform equivalent state transitions, and  ...  The approach enhances the live migration capability of the Xen virtual machine monitor to support fine-grained checkpoints.  ... 
doi:10.1109/edcc.2015.16 dblp:conf/edcc/ShenE15 fatcat:xq65e72x7zcnjbbmrwpgebqnxa

Human-driven Optimization [article]

Bin Lin
2007
The main context is the Virtuoso system for utility and grid computing based on virtual machines (VMs) interconnected with overlay networks.  ...  Human-driven Optimization Bin Lin The optimization problems associated with adaptive and autonomic computing systems are often difficult to pose well and solve efficiently.  ...  Linux SRT, defunct since the 2.2 kernel, was a set of kernel extensions to support soft real-time scheduling for multimedia applications under Linux [88] .  ... 
doi:10.21985/n23h78 fatcat:ybq7u42j7rbzlnxgbxnynefinu

Information-centric communication in mobile and wireless networks

Carlos Anastasiades, Torsten Braun
2016 unpublished
VirtualMesh intercepts traffic generated by CCNx on virtualized hosts (XEN virtual machines) and redirects it to the network simulator OMNeT++ [205] , which simulates wireless communication on the physical  ...  To get statistically meaningful results (multiple evaluation runs per parameter configuration), we have implemented an evaluation framework for VirtualMesh [201] to automatically create XEN virtual machines  ... 
doi:10.7892/boris.83683 fatcat:ywxxo6u5rvdb5nfjrsllcjxzl4

Information-centric communication in mobile and wireless networks

Carlos Anastasiades
2016
VirtualMesh intercepts traffic generated by CCNx on virtualized hosts (XEN virtual machines) and redirects it to the network simulator OMNeT++ [205] , which simulates wireless communication on the physical  ...  To get statistically meaningful results (multiple evaluation runs per parameter configuration), we have implemented an evaluation framework for VirtualMesh [201] to automatically create XEN virtual machines  ... 
doi:10.24442/boristheses.874 fatcat:llzub2x32vf5venohllwxdfdg4

Resilient routing for MANETs

Marco Caballero Gutierrez, Apollo-University Of Cambridge Repository, Jon Crowcroft, Richard Mortier
2022
Ultimately, my work contributes to the field in three fronts: Firstly, motivated by the multiple challenges that research in this area presents, I designed and built MeshSim, a real-time network simulator  ...  These self-organising networks are ideal for rapidly changing scenarios that require connectivity even under hostile conditions.  ...  Further, the fact that these virtual devices run in real time also means that they require real-time computing power to perform its operations, raising the computational requirements of discrete event  ... 
doi:10.17863/cam.83528 fatcat:efctaxja3rctpm6pbo5msjak7a