When procuring or administering any IT system or a component of an IT system, it is crucial
to understand the computational resources required to run the critical business functions that …

Abstract Network Attached Storage (NAS) and Virtual Machines (VMs) are widely used in
data centers thanks to their manageability, scalability, and ability to consolidate resources …

Modern virtualized environments are key for reducing the operating costs of data centers. By
enabling the sharing of physical resources, virtualization promises increased resource …

The increasing popularity of clouds drives researchers to find answers to a large variety of
new and challenging questions. Through extensive experimental measurements, we show …

Next generation IT infrastructures are highly driven by virtualization technology. The latter
enables flexible and efficient resource sharing allowing to improve system agility and reduce …

Technological advancements in the past decades have substantially increased the capacity
and performance of Solid State Drives (SSDs). Provisioning such high-capacity SSDs …

In this work we address the problem of predicting the performance of a complex application
deployed over virtualized resources. Cloud computing has enabled numerous companies to …

Cloud providers are typically hierarchically organized into interconnected data centers, each
with a collection of racks of servers organized into clusters. The communication cost …

We present a novel performance modeling approach tailored to I/O performance prediction
in virtualized environments. The main idea is to identify important performance-influencing …

Big Data applications receive an ever-increasing amount of attention, thus becoming a
dominant class of applications that are deployed over virtualized environments. Cloud …