The organizing committee is excited to invite you to take part in ACM SIGMETRICS 2013. SIGMETRICS is the flagship conference of the ACM special interest group for the computer systems performance evaluation community. The ACM SIGMETRICS conference solicits papers on the development and application of state-of-the-art, broadly applicable analytic, simulation, and measurement-based performance evaluation techniques. Of particular interest is work that furthers the state-of-the-art in performance evaluation methods, or work that creatively apply previously developed methods to understand or gain important insights into key design trade-offs in computer or network systems.