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Rama Ramasubramanian


Microsoft Research Silicon Valley
1065 La Avenida
Mountain View, CA 94043

Ph: 607-244-4198 (Mob) 
Other:  linkedin profile

I am a researcher in the field of systems and networking. My research interests span distributed systems, computer networks, high-performance computing, storage systems, operating systems, virtualization, mobile computing, and cloud computing.

I like to design and build systems grounded in sound principles that solve important real-world problems while advancing the state of the art.  My current unpublished works involve incorporating scalable security into a full-text document indexing and search system and providing strong isolation and flexible allocation of cpu cache lines in virtual machine monitors.

The following are two big distributed systems I have designed, built, and deployed.

1. Cimbiosys/Cimetric: Cimbiosys is a hybrid cloud-to-device + device-to-device synchronization and replication platform for data belonging to loosely structured semi-trustful communities. Cimetric is a collaboration tool built on top of Cimbiosys, which was released internally in Microsoft and was used by several groups of collaborators.

2. Beehive/Codons: Codons is a low latency and highly available distributed cache of DNS. It is built on top of Beehive, distributed platform that enables Internet services to meet a targeted value of average latency with minimal replication. I had deployed Codons globally for two years during which time it attracted a few dedicated customers and millions of queries per day.

I have a Ph.D from Cornell University. My dissertation on Beehive/Codons was nominated for the ACM Dissertation Award by Cornell Computer Science Department in 2006.  I am also a graduate from Indian Institute of Technology Madras.

Selected Publications

Selected Talks

  • Filtered, Fidelity-aware Replication of Data among Devices and the Cloud
    Department of Computer Science, Duke University, Durham NC, December 2010.
    Duke University, Durham NC, December 2010.
    Department of Electrical Engineering and Computer Sciences, University of Michigan, Ann Arbor MI, June 2010.
  • Sequoia: Virtual-Tree Models for Internet Path Metrics
    Microsoft P2P Summit, Redmond, WA, March 2008.
    MSR Networking Mindswap, Kyoto, Japan, August 2007.
  • Cost-Aware Self-Organizing Systems for Decentralized Internet Services
    Large-Scale Distributed Systems and Middleware Workshop (LADIS), Technion, Haifa, Israel, March 2007.
    International Computer Science Institute (ICSI), Berkeley CA, June 2006.
  • Full list of talks