Computing systems must meet increasingly strict Quality of Service (QoS) requirements for
performance, availability, security, and maintainability. To achieve these goals, designers …

The availability of reliable models of computer virus propagation would prove useful in a
number of ways, in order both to predict future threats, and to develop new containment …

The rapid increase in the volume of unsolicited commercial e-mails, also known as spam, is
beginning to take its toll in system administrators, business corporations and end-users …

A recent phenomenon on the Web is the emergence and proliferation of new social media
systems allowing social interaction between people. One of the most popular of these …

Abstract Analysis of time series data has been a challenging research subject for decades.
Email traffic has recently been modelled as a time series function using a Recurrent Neural …

The rise of large-scale software systems poses many new challenges for the software
performance engineering field. Failures in these systems are often associated with …

This paper describes performance tuning experiences with a three-dimensional
unstructured grid Euler flow code from NASA, which we have reimplemented in the PETSc …

Large customers commonly request on-site capacity testing before upgrading to a new
version of a mission critical telecom application. Customers fear that the new version cannot …

This article presents an extensive characterization of a spam-infected e-mail workload. The
study aims at identifying and quantifying the characteristics that significantly distinguish …

Ultra-Large-Scale (ULS) systems face continuously evolving field workloads in terms of
activated/disabled feature sets, varying usage patterns and changing deployment …