XenSocket: A High-Throughput Interdomain Transport for Virtual Machines

Zhang, Xiaolan; McIntosh, Suzanne; Rohatgi, Pankaj; Griffin, John Linwood

doi:10.1007/978-3-540-76778-7_10

Cited by 90 publications

(72 citation statements)

References 9 publications

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“…XWay [7] modifies the AF NET network protocol stack to switch dynamically between TCP/IP (using the original kernel) and their XWay channel (using shared memory). XenSocket [8] instead maintains another new AF XEN network protocol stack to support IDC. XenLoop [9] utilizes the existing Linux netfilter mechanism to add a XenLoop module between the IP layer and the netfront driver: if the packet is for IDC, the XenLoop module directly communicates with another XenLoop module in the corresponding domain.…”

Section: Related Workmentioning

confidence: 99%

“…A discover kernel module in the manager domain is also needed to establish the data channel. These approaches [6]- [9] all require modification to the guest domain (beyond the wellsupported default Xen patch) and/or the applications running atop it [6], [8]. In sharp contrast, RTCA does not require any modification to the guest domain or the application or the Xen hypervisor, and can be seamlessly integrated with the rate control mechanism within Xen.…”

Section: Related Workmentioning

confidence: 99%

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Prioritizing local inter-domain communication in Xen

et al. 2013

2013 IEEE/ACM 21st International Symposium on Quality of Service (IWQoS)

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Abstract-As computer hardware becomes increasingly powerful, there is an ongoing trend towards integrating QoS-critical systems as virtual machines (domains) on a common, virtualized computing platform. Given the lower latency of local interdomain communication (IDC) on the same host (compared to inter-host communication), system administrators may preferably colocate domains so that they can communicate locally. When multiple IDC flows contend on the same host, it is important to properly prioritize IDC flows among domains to meet their respective QoS requirements. This paper examines the limitations of IDC in Xen, a widely used open-source virtual machine monitor (VMM) that recently has been extended to support real-time domain scheduling. We find that both the VMM scheduler and the manager domain can significantly impact IDC QoS under different conditions, and show that improving the VMM scheduler alone cannot effectively prevent priority inversion for local IDC. To address those limitations, we present RTCA, a Real-Time Communication Architecture within the manager domain in Xen, along with experimental results that demonstrate the latency of high-priority IDC can be improved dramatically from ms to µs by a combination of the RTCA and a real-time VMM scheduler.

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Section: Related Workmentioning

confidence: 99%

Section: Related Workmentioning

confidence: 99%

Prioritizing local inter-domain communication in Xen

et al. 2013

2013 IEEE/ACM 21st International Symposium on Quality of Service (IWQoS)

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show abstract

“…Using the socalled libxmc library, which we also developed from scratch, the daemon maintains sensor-to-vehicle mappings to keep track of which virtual vehicle is interested in receiving data from which sensors, and distributes sensor data to the possibly changing set of virtual vehicles. Control data and actual sensor data is communicated through so-called XenStore storage [14] and so-called XenSocket connections [15], respectively.…”

Section: A Sensor Virtualizationmentioning

confidence: 99%

Cyber-physical cloud computing: The binding and migration problem

Kirsch

Pereira

Sengupta

et al. 2012

2012 Design, Automation &Amp; Test in Europe Conference &Amp; Exhibition (DATE)

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Abstract-We take the paradigm of cloud computing developed in the cyber-world and put it into the physical world to create a cyber-physical computing cloud. A server in this cloud moves in space making it a vehicle with physical constraints. Such vehicles also have sensors and actuators elevating mobile sensor networks from a deployment to a service. Possible hosts include cars, planes, people with smartphones, and emerging robots like unmanned aerial vehicles or drifters. We extend the notion of a virtual machine with a virtual speed and call it a virtual vehicle, which travels through space by being bound to real vehicles and by migrating from one real vehicle to another in a manner called cyber-mobility. We discuss some of the challenges and envisioned solutions, and describe our prototype implementation.

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“…This is because the abstraction of VMs supported by VMM technology does not differentiate whether the data request is coming from co-resident VMs or not. Several research projects [2][3][4][5][6][7][8][9][10][11] have demonstrated that. Linux guest domain shows lower network performance than native Linux [12], when an application running on a VM communicates with another VM.…”

Section: Introductionmentioning

confidence: 99%

Residency-Aware Virtual Machine Communication Optimization: Design Choices and Techniques

Ren

Liu

Zhang

et al. 2013

2013 IEEE Sixth International Conference on Cloud Computing

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Abstract-Network I/O workloads are dominating in many data centers and cloud computing environments today. One way to improve inter Virtual Machine (VM) communication efficiency is to support co-resident VM communication by using shared memory based approaches and to resort to the traditional TCP/IP for inter-VM communications between VMs that are located on different physical hosts. Although a number of independent efforts are dedicated to improving communication efficiency between co-resident VMs, they differ from one another in terms of how the inter-VM communication optimization is carried out and where in the software stack the shared memory channel is established. In this paper, we provide an in-depth overview of the design choices and techniques for optimizing the performance of the co-resident inter-VM communication, with dual objectives. First, we describe the core design guidelines and key issues for optimizing inter-VM communication by using shared memory based mechanisms. Typical issues include choices of implementation layer in the software stack, seamless agility for VM live migration and VM dynamic deployment support, multilevel transparency. Second, we conduct a comprehensive analysis of representative state-of-the-art research efforts and implementation techniques based on the core design guidelines. We also give an analysis of future requirements in advanced features such as reliability, security and stability. The research reported in this paper not only provides the reference for developing the next generation of inter-VM communication optimization mechanisms, but also offers opportunities for both cloud infrastructure providers and cloud service consumers to improve inter-VM communication efficiency in virtualized platforms.

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XenSocket: A High-Throughput Interdomain Transport for Virtual Machines

Cited by 90 publications

References 9 publications

Prioritizing local inter-domain communication in Xen

Prioritizing local inter-domain communication in Xen

Cyber-physical cloud computing: The binding and migration problem

Residency-Aware Virtual Machine Communication Optimization: Design Choices and Techniques

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