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The current techniques and tools for collecting, aggregating, and reporting verifiable sustainability data are vulnerable to cyberattacks and misuse, requiring new security and privacy-preserving solutions. This article outlines security challenges and ...

One of the key challenges of edge computing is working with a limited amount of resources available at the edge, especially memory and bandwidth. Virtual Machine (VM) Templating is a technique to start multiple VM instances quickly from a shared pre-...

Despite several calls from the community for improving the sustainability of computing, sufficient progress is yet to be made on one of the key prerequisites of sustainable computing---the ability to define and measure computing sustainability ...

Bare-metal cloud platforms allow customers to rent remote physical servers and install their preferred operating systems and software to make the best of servers' raw hardware capabilities. However, this quest for bare-metal performance compromises ...

In this dissertation, we investigate the performance of Parallel Discrete Event Simulation (PDES) systems on Intel Knights Landing (KNL) processors and their clusters. The dissertation makes several contributions. First, we present a comprehensive ...

The proliferation of 4G/LTE (Long Term Evolution) technique for cellular network calls for new methods and tools for assessing its resilience and vulnerabilities effectively and efficiently. Existing methods focus their works on ad-hoc attacks and ...

Post-copy is one of the two key techniques (besides pre-copy) for live migration of virtual machines in data centers. Post-copy provides deterministic total migration time and low downtime for write-intensive VMs. However, if post-copy migration fails for ...

Hypervisors are increasingly complex and must be often updated for applying security patches, bug fixes, and feature upgrades. However, in a virtualized cloud infrastructure, updates to an operational hypervisor can be highly disruptive. Before being ...

This document presents a unique approach to automation of human surveillance systems using light weight and decentralized methods. The solution may be used as a whole for future expansion or as parts (services) for development purposes. ...

Bugs in hypervisors are becoming common as hypervisors grow in size and complexity. Latent bugs, such as memory leaks, can lead to hypervisor failures resulting in complete loss of all its virtual machines (or guests). However, reliable operation of ...

Public cloud software marketplaces already offer users a wealth of choice in operating systems, database management systems, financial software, and virtual networking, all deployable and configurable at the click of a button. Unfortunately, this level ...

Cloud computing platforms routinely use virtualization to improve service availability, resiliency, and flexibility. Live migration of Virtual Machines (VM) is a key technique to quickly migrate workloads in response to events such as impending failure ...

When considering a hypervisor, cloud providers must balance conflicting requirements for simple, secure code bases with more complex, feature-filled offerings. This paper introduces Dichotomy, a new two-layer cloud architecture in which the roles of the ...

Cloud computing systems routinely process users' confidential data, but the underlying virtualization software in use today is not constructed to minimize the exposure of such data. For instance, virtual machine (VM) checkpointing can drastically ...

Virtual machine (VM) migration is a technique for transferring the execution state of a VM from one physical host to another. While VM migration is critical for load balancing, consolidation, and server maintenance in virtualized data centers, it can ...

Traditional metrics for live migration of virtual machines (VM) include total migration time, downtime, network overhead, and application degradation. In this paper, we introduce a new metric, "eviction time", defined as the time to evict the entire ...

Virtualization has been widely adopted in recent years in the cloud computing platform to improve server consolidation and reduce operating cost. Virtual Machine (VM) checkpointing refers to the act of saving a persistent snapshot (or checkpoint) of a ...

Gang migration refers to the simultaneous live migration of multiple Virtual Machines (VMs) from one set of physical machines to another in response to events such as load spikes and imminent failures. Gang migration generates a large volume of network ...

Network protocol developers typically go through a tedious and error-prone process of testing and debugging their protocol implementation for various settings. They perform a number of tasks manually such as configuration of numerous network settings, ...

Within datacenters, often multiple virtual machines (VMs) need to be live migrated simultaneously for various reasons such as maintenance, power savings, and load balancing. Such mass simultaneous live migration of multiple VMs can trigger large data ...