Ian Pratt

I used to be a Senior Lecturer at the University of Cambridge Computer Laboratory, where I led the Systems Research Group. I was co-founder of a company called XenSource, which built virtualization software built on the open source Xen hypervisor, and left the Lab to concentrate on making the company succesful. XenSource was acquired by Citrix for $500M in 2007, and I continued at Citrix as VP of Advanced Products and CTO. In June 2011 I left Citrix to start a new company called Bromium, working in the intersection of Security and Virtualization. I remain Chairman of Xen.org.

This page is a tombstone from my time in the Lab, linking to various publications, teaching material and projects that may be useful.

Teaching:

As Director of Studies for Computer Science at King's College I organise supervisions for the King's-Jesus-Wolfson teaching consortium. Details of this years arrangements are available here.

At various times, I've lectured the following courses: Part II Comparative Architectures, Part II Digital Communications-2, Part IB Unix Tools, Part IA Structured Hardware Design. I also co-run the Part IA hardware practical lab. Notes for these courses are available from the teaching course material web pages.

Some of my teaching material I've been asked to link to:

OHP slides for Lent Part II Comparative Architecture course (with additional notes for supervisors).
OHP slides for Easter Part 1A Structured Hardware Design.
OHP slides for Michaelmas Part 1B Unix Tools course.

Research:

See the SRG's web pages for a complete list of publications . Below are a few papers/talks that people have asked me to provide links to:

The Xen virtual machine monitor

SOSP 2003 paper Xen and the Art of Virtualization

Xenoservers: A public infrastructure for global distributed computing

OpenArch 2003 paper Controlling the XenoServer Open Platform
Project overview (.pdf)
HOTOS'99 paper (.ps)

Mobile Network performance

Performance issues with GPRS JCN paper
IEEE INFOCOM 2003 Flow Aggregation for Enhanced TCP over Wide Area Wireless
GPRSWeb : Optimising the Web for GPRS links Mobisys 2003

Internet performance

Non-Intrusive measurement of Web Server Delays LCN2001 paper
Observing Web Browser Behaviour Using Nprobe 2001 Extended Abstract
Network Monitoring with Nprobe 2002 Extended Abstract
Efficient Internet Routeing 2000 Project Proposal
Dynamic Circuit Networks : A next-generation network architecture 1998 Project Proposal

Dynamic Code Optimization

Compiler Generated Annotations for Run-Time Optimization 2000 Project Proposal

User-Accessible Device I/O Architecture

1995 paper on Wide-Area Audio Stream Synchronization (.ps)
Ph.D. thesis: The User-Safe Device I/O Architecture.
Nossdav '97 paper: User-Safe Devices for True End-to-End QoS
Presentation to Network Attached Storage Device (NASD) workshop, Vancouver Sept '98: Devices on the Desk Area Network (DAN)
Arsenic: A User-Accessible Gigabit Ethernet Interface Infcomm 2001 paper

Contact Details:

Lab address:

Ian Pratt,
Room FN08,
University of Cambridge Computer Laboratory,
JJ Thomson Avenue,
Cambridge CB3 0FD
United Kingdom.
Email: Ian.Pratt@cl.cam.ac.uk
Tel : +44 1223 334639
Fax : +44 1223 334678
Mob. : +44 7767 370255

$Date: $ XenMaster.