Peng SUN name

PhD Candidate
Department of Computer Science
Princeton University

35 Olden Street
Princeton, NJ 08540

Email: email

Résumé View Peng Sun's profile on LinkedIn


I am a fifth-year Ph.D student in Department of Computer Science, Princeton University. My Ph.D advisor is Professor Jennifer Rexford. I received my B.Eng in Electronic Engineering with highest honor from Tsinghua University in July 2010. I finished my senior thesis in New Generation Network Lab.

I am driven by solving practical problems in building the cloud services, especially in networking and distributed systems.

I will be on job market in 2015.


  • August 2014: Statesman is presented in SIGCOMM'14 in Chicago.
  • May 2014: HONE is accepted to Journal of Network and Systems Management.
  • April 2014: My project in Windows Azure on network-state management service is accepted to SIGCOMM'14.
  • September 2013: I continue my internship project as a full-time Software Engineer Intern in Windows Azure & Microsoft Research.
  • June 2013: I continue a joint project with Windows Azure and Microsoft Research as a full-time summer intern. I work with Ratul Mahajan and Ming Zhang of MSR, and Lihua Yuan and Dave Maltz of Windows Azure.
  • ...


Undergrad works

Work Experiences

  • Software Engineer Intern in Microsoft Azure. 03/2013 - 05/2014
    Project: Statesman: A Network-State Management Service
    Team: Azure Cloud Networking Team
    • Designed and built a network operating system for automatic and safe infrastructure management.
    • Deployed the system in over 10 Azure datacenters across the globe, managing over 10 thousand devices.
    • Reduced the development cost of management applications by 5 times.
    • The system is now the foundation layer of Azure's networking services to its customers.

  • Software Engineer Intern in Microsoft Bing. 06/2012 - 02/2013
    Project: AutoFocus: Automatic Problem Localization for Large Distributed Online Services
    Team: Bing Autopilot Infrastructure Team
    • Designed and built a self-adapting real-time diagnosis system for high search-query latencies.
    • Integrated into Bing's index service, document service, and internal big-data analysis platform.
    • Accurately pinpointed the services and servers that caused high search latencies in several incidents.
    • Contributed to the improvement of user-experiencing latency of Bing.

  • Research Assistant in Princeton University. 12/2010 - 05/2012 & 06/2014 - Present
    Project: HONE: Programmable Host-Network Traffic Management
    • Realized more effective datacenter-traffic management by extending to include Linux network stack.
    • In integration with Verizon/Overture Networks's products for business cloud services at the edge.

    Project: Identifying Performance Bottlenecks in CDNs through TCP-Level Monitoring
    • Built a TCP profiler in Linux network stack for performance diagnosis of web services.
    • Deployed in the Coral content distribution network.
    • Improved the CDN's overall latency by 10% by locating and resolving its bottlenecks.

  • Research Intern in Microsoft Research Asia. 12/2009 - 03/2010
    • Worked in Datacenter Network group with Chuanxiong Guo.
    • Built the control module in a virtualized data center network architecture with bandwidth guarantees.
    • Carried out experiments in datacenters to validate link failure handling and adjustment of bandwidth guarantees.

  • Research Assistant in Tsinghua University. 04/2009 - 07/2010
    • Designed and built a matrix-factorization-based network coordinate system to estimate latency and bottleneck bandwidth between Internet nodes.
    • Designed a new sorting mechanism for neighboring Internet nodes.
    • Reduced the analysis complexity to 10D state-space exploration problem.

  • Research Intern in University of Southern California. 07/2009 - 08/2009
    • Worked in Prof. Urbashi Mitra's group.
    • Designed a channel estimator to improve underwater acoustic wireless communication.
    • Deployed and tested the system in a Naval testbed.


  • Compiling Techniques, Spring 2012 (COS 320)
  • Advanced Computer Systems, Fall 2011 (COS 518)
  • Advanced Topics in Computer Science - Principles of Database and Information System, Fall 2011 (COS 597A)
  • Theory of Algorithms, Spring 2011 (COS 423)
  • Special Topics in Informations Sciences and Systems - Optimization of Communication Systems, Spring 2011 (ELE 539A)
  • Advanced Computer Networks, Fall 2010 (COS 561)
  • Artificial Intelligence, Fall 2010 (COS 402)
  • Advanced Topics in Computer Science - Future Datacenter Networks and Systems, Fall 2010 (COS 597B)


  • Gordon Wu Prize for Excellence. Princeton University. 2014.
    Awarded to engineering graduate students who have performed at the highest level as scholars and researchers during their time in Princeton. Among 15 out of all graduate students in the School of Engineering and Applied Science.

  • Graduate Fellowship. Princeton University. 2010.

  • Graduate with Highest Honor. Tsinghua University. 2010.
    Among 58 out of 2867 undergrads of Class of 2010.

  • Star of Tomorrow Award. Microsoft Research Asia. 2010.
    Awarded to interns who have carried out excellent research works.

  • Fellowship for Comprehensive Excellence. Tsinghua University. 2007, 2008, 2009.


  • Graduate Student Government in Princeton University. 03/2011 - 03/2013
    Member of the Events Board. Allocated over $10,000 to about 100 social activities for the graduate-student community.

  • Student Association of Science and Technology in Tsinghua University. 10/2006 - 08/2007
    Vice President of Department of Internal Relationship. Organized meetings of the branch presidents of the organization. Bridged the branches to facilitate the cooperation in university-wide activities.

Code Release

  • HONE: Programmable Host/Network Traffic Management Platform
    Project website: HONE website
    Source on GitHub: HONE

Last update in August 2014.