Traditional performance models are too brittle to be relied on for continuous capacity
planning and performance debugging in many computer systems. Simply put, a brittle model …

Consolidation of workloads has emerged as a key mechanism to dampen the rapidly
growing energy expenditure within enterprise-scale data centers. To gainfully utilize …

In a Grid computing environment, resources are shared among a large number of
applications. Brokers and schedulers find matching resources and schedule the execution of …

As Internet services become ubiquitous, the selection and management of diverse server
platforms now affects the bottom line of almost every firm in every industry. Ideally, such …

Modeling system performance and workload characteristics has become essential for
efficiently provisioning Internet services and for accurately predicting future resource …

Abstract Service providers and their customers agree on certain quality of service
guarantees through Service Level Agreements (SLA). An SLA contains one or more Service …

Modern Web 2.0 applications, such as GMail, Live Maps, Face-book and many others, use a
combination of Dynamic HTML, JavaScript and other Web browser technologies commonly …

Today's processors provide a rich source of statistical informationon application execution
through hardware counters. In this paper, we explore the utilization of these statistics as …

Online instructional applications, social networking sites, Wiki-based web sites, and other
emerging web applications that rely on end users for the generation of web content are …

Multicore processors promise continued hardware performance improvements even as
single-core performance flattens out. However they also enable increasingly complex …