Mutual Influence of Application- and Platform-Level Adaptations on Energy-Efficient Computing

Abstract

Abstract-We experimentally investigate the mutual influence of application-and platform-level adaptations in a virtualized cluster environment. At the application level, applications can adapt to a changing execution environment by dynamically exchanging components that enable them to trade energy for utility and vice versa. Likewise, at the platform level, virtual machine monitors can migrate virtual machines from one server to another either to consolidate workloads and switch-off underutilized servers or to distribute the workload of overloaded servers. Our experiment quantify impacts of various types of adaptations on QoS, power consumption, and energy-overhead.

Modular composition of multiple applications with architectural event modules

“…They adopt a C++ based library and an object-oriented core environment for the modeling and analysis of SoS's. All these proposals have a root in object-oriented design, without addressing the need for modular representations of crosscutting concerns as discussed in REQ (1) and REQ (2). The need for extending constituent applications with SoS-specific interfaces is also studied in [16], where the so-called Relied Upon Interfaces are introduced as a solution.…”

“…If the adaptive software and the load balancer are composed together as one SoS, various kinds of unforeseen interplays among them may occur . For example, the migration takes place by copying the memory content of VMs to a target server.…”

“…After these steps, the user's request is served by the Application components.As the figure shows, the load balancer also consists of multiple components, which monitor and analyze the load of the server at predefined intervals to detect whether the server is underutilized or over-utilized. If so, they plan for migrating some VMs to another server, and perform the migration to balance the load of the server.If the adaptive software and the load balancer are composed together as one SoS, various kinds of unforeseen interplays among them may occur [2]. For example, the migration takes place by copying the memory content of VMs to a target server.…”