skip to main content
Department of Computer Science University of Colorado Boulder
cu: home | engineering | mycuinfo | about | cu a-z | search cu | contact cu cs: about | calendar | directory | catalog | schedules | mobile | contact cs
home · events · colloquia · 1998-1999 · 

Colloquium - Harchol-Balter

ECCR 265

The Effect of Heavy-Tailed Job Size Distributions on System Design
MIT Lab for Computer Science
Mor Harchol-Balter photo

We consider several common questions in the design of computer systems: What is a good policy for assigning jobs to hosts in a distributed server? In what order should HTTP requests be scheduled within a Web server? What should the migration policy be in a Network of Workstations? For each problem, we show that the answer depends on the job size distribution, and the impact of the job size distribution is very great, affecting answers sometimes by orders of magnitude. We present measurements showing that job size distributions are commonly heavy-tailed. We show how to incorporate heavy-tailed job size distributions into the design of systems. This leads us to discover solutions to the above questions which are novel and highly effective.

Hosted by Elizabeth Bradley.

The Department holds colloquia throughout the Fall and Spring semesters. These colloquia, open to the public, are typically held on Thursday afternoons, but sometimes occur at other times as well. If you would like to receive email notification of upcoming colloquia, subscribe to our Colloquia Mailing List. If you would like to schedule a colloquium, see Colloquium Scheduling.

Sign language interpreters are available upon request. Please contact Stephanie Morris at least five days prior to the colloquium.

See also:
Department of Computer Science
College of Engineering and Applied Science
University of Colorado Boulder
Boulder, CO 80309-0430 USA
Send email to

Engineering Center Office Tower
ECOT 717
FAX +1-303-492-2844
XHTML 1.0/CSS2 ©2012 Regents of the University of Colorado
Privacy · Legal · Trademarks
May 5, 2012 (13:29)