While visiting the Space Needle in Seattle

Vijay Chidambaram

Assistant Professor,
Department of Computer Science,
The University of Texas at Austin

Office: GDC 6.436,
2317 Speedway,
Austin, TX 78712

Email: vijay@cs.utexas.edu
Twitter: @vj_chidambaram
On Quora  CV  Calendar

I lead the UT Systems and Storage Lab. I am also a part of the LASR research group. I am broadly interested in systems-ish stuff: operating systems and distributed systems. Most of the work I've done so far has been in file systems, distributed systems, and storage. Recent interests: key-value stores, non-volatile memory, and verification.

I am interested in recruiting new PhD students. I am not currently hiring Masters students. If you are interested in working with me, please check out my page for prospective students and send me an email (after reading this!). Make sure to apply to the PhD program by the deadline (December 15).

If you are a student considering grad school or applying for grad school, these links may be useful (advice on contacting profs, getting letters of recommendation, etc.)

I maintain the SOSP/OSDI Hall of Fame and the FAST Hall of Fame. These pages indicate who has published the most at these premier venues, and who has been publishing recently. These are good guides for grad students trying to decide which professor to work with!

My research is supported by NSF, VMware, Facebook, and Google. I am an Affiliated Researcher at VMware Research.




Spring 2018: Distributed Systems: CS 380D

Fall 2017: Virtualization: CS 378

Fall 2016: Graduate Operating Systems: CS 380L

Fall 2014: Back at Wisconsin: Introduction to Operating Systems (CS 537)


PC Member for:

2019: FAST
2017: ACM SRC (with SOSP), SOCC, MASCOTS, MSST, HotStorage, NVMW, WWW
2016: HotStorage, NVMW

External Reviewer/Review Committee Member for ASPLOS 18, ASPLOS 17, Eurosys 17
Reviewer for TOCS, TACO, TDSC, TOS

NSF Panelist in 2018


Apr 2018: I was invited to the NSF Workshop on "Data Storage Research 2025"!

Mar 2018: I was awarded a Google Faculty Research Award to work on write-optimized infrastructure!

Feb 2018: Our work on Protocol-Aware Recovery was featured in the Morning Paper!

Feb 2018: Our work on protocol-aware recovery was awarded one of the best Best Paper Awards at FAST 2018!

Jan 2018: Awarded the NSF CAREER Award for project on building IO-efficient infrastructure!

Dec 2017: Ashlie Martinez, the undergrad leading the CrashMonkey project, was selected as one of the three awardees of the CRA Best Undergraduate Award 2018! Congratulations Ashlie!

Dec 2017: Our paper on protocol-aware recovery in consensus-based distributed storage systems was accepted to FAST 2018!

Oct 2017: Invited to attend Facebook Systems and Networking Faculty Summit! Excited to tour the Fort Worth datacenter.

Sep 2017: Students Pandian Raju and Jayashree Mohan were awarded scholarships to attend SOSP 2017. Congratulations!

Sep 2017: Our poster on IO Amplification in Linux file systems was awarded Best Poster at ApSys 17! Congratulations Jayashree and Rohan!

Sep 2017: Jayashree presented our work on the complexities in benchmarking SQLite at ApSys 17.

Aug 2017: PebblesDB, our work on reducing IO amplification in key-value stores, was accepted to SOSP 2017!

Older News


Apr 2018. Presented PebblesDB at the Systems Seminar at the University of Washington.

Apr 2018. Presented PebblesDB at Microsoft Research, Redmond.

Nov 2017. Presented PebblesDB at the Austin Industry-Academia Partnership.

Nov 2017. Presented at Austin Liberal Arts and Science Academy (LASA) about the many facets of computer science.

Jul 2017. Presented at NetApp, VMware, Uber, Facebook, and Google about reducing write amplification in LSM-based key-value stores.

Jun 2017. Spoke to high school students as part of the First Bytes program!

Older Talks


  • Best Paper Award at FAST 2018
  • NSF CAREER Award 2018
  • Best Poster Award at ApSys 2017
  • Best Paper Award at FAST 2017
  • ACM SIGOPS Dennis M. Ritchie Dissertation Award 2016
  • Microsoft Research Graduate Fellowship 2014
  • University of Wisconsin-Madison Alumni Scholarship 2009

Awards won by members of research group

  • Ashlie Martinez: CRA Best Undergraduate Researcher 2018
  • Ashlie Martinez: UT Austin Dean's Honored Graduate 2018
  • Ashlie Martinez: UT Austin Aspire Research Excellence Award 2018

Work in Progress

Analyzing IO Amplification in Linux File Systems
Jayashree Mohan, Rohan Kadekodi, Vijay Chidambaram
Poster at ApSys 17   ArXiV Preprint
Best Poster Award

Recent Publications (All)

mLSM: Making Authenticated Storage Faster in Ethereum
Pandian Raju, Soujanya Ponnapalli, Evan Kaminsky, Gilad Oved, Zachary Keener, Vijay Chidambaram, Ittai Abraham
HotStorage 18
PDF   Bibtex

TxFS: Leveraging File-System Crash Consistency to Provide ACID Transactions
Yige Hu, Zhiting Zhu, Ian Neal, Youngjin Kwon, Tianyu Cheng, Vijay Chidambaram, Emmett Witchel
ATC 18

vFiber: Virtualizing Unused Optical Fibers (Extended Abstract)
Matt Hall, Vijay Chidambaram, Ramakrishnan Durairajan
Poster at NSDI 18

Protocol-Aware Recovery for Consensus-Based Storage
Ramnatthan Alagappan, Aishwarya Ganesan, Eric Lee, Aws Albarghouthi, Vijay Chidambaram, Andrea C. Arpaci-Dusseau, Remzi H. Arpaci-Dusseau
FAST 2018  
PDF   Bibtex   Slides  Code
Best Paper Award
Press: Morning Paper

PebblesDB: Building Key-Value Stores using Fragmented Log-Structured Merge Trees
Pandian Raju, Rohan Kadekodi, Vijay Chidambaram, Ittai Abraham
PDF   Bibtex   Slides   Code on Github

The Dangers and Complexities of Benchmarking SQLite
Dhathri Purohith, Jayashree Mohan, Vijay Chidambaram
ApSys 17
PDF   Bibtex   Slides  

Storage on Your Smartphone Uses More Energy Than You Think
Jayashree Mohan, Dhathri Purohith, Matt Halpern, Vijay Chidambaram, Vijay Janapa Reddi
HotStorage 17
PDF   Bibtex   Slides

CrashMonkey: A Framework to Systematically Test File-System Crash Consistency
Ashlie Martinez, Vijay Chidambaram
HotStorage 17
PDF   Bibtex   Slides   Code on Github

CC-Log: Drastically Reducing Storage Requirements for Robots Using Classification and Compression
Santiago Gonzalez , Vijay Chidambaram, Jivko Sinapov, Peter Stone
HotStorage 17
PDF   Bibtex   Slides

Full List of Publications   Google Scholar