CSR: Small: Toward a Scalable, Multi-Tenant, Edge-Cloud Infrastructure for Real-Time Computation

应用程序越来越多地与云连接，并且依赖于快速服务，如果它们的请求必须传输到云数据中心，则不可能实现快速服务。边缘计算将少量计算放在非常靠近应用程序本身的网络上，提供快速的请求服务。 这使得虚拟现实和增强现实等新的应用类型成为可能，它们希望以难以察觉的开销向用户显示信息。不幸的是，当前的云计算系统无法支持边缘计算部署中的应用密度或多样性。每个连接的设备-无论是手机，智能建筑传感器还是自动驾驶汽车-都可能需要不同的软件才能在边缘云中运行，并且移动的用户可能会不断到达和离开。由于这些软件组件不一定是可信的，因此必须仔细隔离资源以提供安全性并防止干扰。这项研究创建了EdgeOS，它提供了强大的多租户隔离，同时确保快速响应时间和有效使用计算资源。EdgeOS引入了许多系统抽象来实现多租户边缘云：一个新的轻量级流程抽象，使大量客户端能够有效地得到服务，并具有隔离;受控通信，以确保安全，有效的协调;以及系统支援，以控制各客户的服务时间，确保及时处理有关要求。这些新的操作系统抽象将帮助边缘云实现其在提供低延迟服务方面的潜力。EdgeOS研究与一项教育计划相结合，该计划将深化系统课程，吸引本科生参与研究，该奖项反映了NSF的法定使命，并被认为值得通过使用基金会的智力价值和更广泛的影响进行评估来支持审查标准。

Applications are increasingly cloud-connected, and are dependent on fast service that is impossible if their requests must travel to a cloud data center. Edge-computing places a smaller amount of computation on the network very close to the applications themselves, providing fast servicing of requests. This enables new application types such as virtual and augmented reality, which want to display information to users with imperceptible overheads.Unfortunately, current cloud computing systems cannot support the density or diversity of applications found in edge-computing deployments. Each connected device -- be it a cell phone, a smart building sensor, or an autonomous vehicle -- may require different software to run in the edge cloud, and mobile users may constantly be arriving and departing. Since these software components cannot necessarily be trusted, resources must be carefully isolated to provide security and prevent interference. This research creates EdgeOS, which provides strong multi-tenant isolation while ensuring quick response times, and efficient use of computational resources.EdgeOS introduces a number of system abstractions to enable multi-tenant edge-clouds: a new lightweight process abstraction that enables a very large number of clients to be served efficiently, and with isolation; controlled communication to ensure safe, efficient coordination; and system support for controlling the service time of various clients to ensure the timely processing of requests. These new operating system abstractions will help edge clouds realize their potential in offering low-latency services.The EdgeOS research is paired with an educational initiative that will deepen the systems curriculum, engage undergraduate students in research, and involve a diverse body of students.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.