Email: jeffra / cs brown edu
Office: 319 CIT
115 Waterman Street
Computer Science Department
Providence, RI 02912
I am a third-year Ph.D. student advised by
Rodrigo Fonseca, primarily
interested in networks, distributed systems, and security. I am supported by an
NSF Graduate Research Fellowship.
I completed my undergrad at the University of Washington where I studied computer science. During my time at UW I primarily worked with Justin Cappos on topics related to sandbox security and API Write-Once-Run-Anywhere verification.
I also worked on the GENI supported peer-to-peer testbed called Seattle.
More details can be found in my CV.
- 2015-01 I will be spending the summer as an Microsoft Research Intern at the Cloud and Information Services Lab (CISL) in Mountain View, CA. I will be working with Konstantinos Karanasos, Sriram Rao, and Srikanth Kandula on some interesting topics related to scheduling in large shared compute clusters.
- 2014-12: As part of CS Education Week, I will be again visiting Nathan Bishop Middle School to help students with an "Hour of Code".
- 2014-11: I will be a graduate TA for Distributed Computer Systems taught by Tom Doeppner and Rodrigo Fonseca in the Spring '15 semester.
- 2014-11: Giving an invited talk at UBC about our low-latency network monitoring work. Plus attending IMC '14 via a generous travel grant.
- 2014-10: Presenting a poster on low-latency network monitoring at the first annual New England Networking and Systems Day at the Hariri Institute at Boston University.
- 2014-04: Our work on low-latency network monitoring will be appearing at SIGCOMM '14!
- 2014-04: Presenting a poster on low-latency network monitoring at NSDI '14 via a generous travel grant from USENIX.
- 2014-03: Poster judge at NEUCS '14.
- 2014-03: I will be spending the summer at VMware in the NSX (i.e., Nicira) group.
- 2014-02: I will be presenting our paper "Low-latency Network Monitoring via Oversubscribed Port Mirroring" at the Open Networking Summit's Research Track.
- 2013-12: Visiting Nathan Bishop Middle School to help students with an Hour of Code.
- 2013-09: Attending IMC '13 via a generous travel grant by the NSF.
- 2013-06: NSF Graduate Research Fellowship Awardee (2013), Brown blog post
- 2013-04: Poster judge at NEUCS '13 . Sadly, the event was canceled.
2013-03: I will be at IBM Research in Austin working with
Colin Dixon and
Eric Rozner this summer.
Low-latency Network Monitor and Control MethodsSoftware-defined networking introduces the possibility of building self-tuning networks that constantly monitor network conditions and react rapidly to important events such as network congestion. Unfortunately, state-of-the-art monitoring mechanisms for conventional networks require hundreds of milliseconds to seconds to extract global network state like global link utilization or the identity of "elephant" flows. My work in this area looks at improved techniques for measuring and controlling high-speed 10GbE or higher data center networks. This is ongoing work with my colleagues at IBM Research and Brown.
Network Impact of DISC FrameworksData Intensive Scalable Compute (DISC) frameworks such as Hadoop and Spark are becoming increasingly important tools for many institutions. Inherently the network is a key factor in the performance of these frameworks, yet this interaction is still poorly understood because of the growing complexity of applications and large shared data center infrastructures. My work in this area is a systematic study of the impact between the network and the end-to-end performance of DISC framework applications.
Publications, Posters, etc.
Planck: Millisecond-scale Monitoring and Control for Commodity Networks
Jeff Rasley, Brent Stephens, Colin Dixon, Eric Rozner, Wes Felter, Kanak Agarwal,
John Carter, Rodrigo Fonseca. In Proceedings of the 2014 ACM Conference on
Chicago, IL, 2014 [pdf]
- Poster at the 11th USENIX Symposium on Networked Systems Design and Implementation ( NSDI 2014). Seattle, WA, 2014 [poster]
- Talk at the 2014 Open Networking Summit (Research Track). Santa Clara, CA, March 2014 [ pdf] [slides]
- Talk at the 2015 Open Networking User Group (Research Track). Columbia University, New York, NY, May 2015 [slides]
- Runtime Verification of Portable Programming Interfaces Jeff Rasley. Honors Thesis. Computer Science and Engineering, University of Washington, June 2011 [pdf]
- Seattle: The Internet as a Testbed. Jeff Rasley, Monzur Muhammad, Alex Hanson, Sebastian Morgan, Alan Loh, Justin Cappos. Poster at the 8th USENIX Symposium on Networked Systems Design and Implementation (NSDI 2011). Boston, MA, 2011
- Retaining Sandbox Containment Despite Bugs in Privileged Memory-Safe Code Justin Cappos, Armon Dadgar, Jeff Rasley, Justin Samuel, Ivan Beschastnikh, Cosmin Barsan, Arvind Krishnamurthy, and Thomas Anderson. The 17th ACM Conference on Computer and Communications Security ( CCS 2010). Chicago, IL, 2010 [pdf]