I am a fourth year PhD student at the University of Illinois at Urbana-Champaign, where I work with Aishwarya Ganesan and Ram Alagappan at the DASSL Lab. I am broadly interested in distributed storage systems, with a focus on designing abstractions for new and emerging application paradigms.
My research focuses on distributed shared logs, which power a wide range of modern applications. My work on SpecLog and LazyLog explores new shared log abstractions that reduce latency for applications such as real-time analytics and high-frequency trading. More recently, I have been exploring how data infrastructure must evolve to support agentic AI workloads (see AgileLog).
I previously interned at OpenAI, the Networking and Distributed Systems Lab (NDSL) at Hewlett Packard Labs, and Microsoft Research India.
I graduated with a Dual Degree (Bachelors and Masters) in CSE from IIT Madras, where I worked with Kartik Nagar on cutoff-based techniques for verifying distributed protocols.
News
Publications
AgileLog: A Forkable Shared Log for Agents on Streaming Data
, Tony Hong, Michael Noguera, Aishwarya Ganesan, Ramnatthan Alagappan
SOSP'26 | Symposium on Operating Systems Principles (to appear)
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MEGALON: Efficient Data Sharing for Partly Coherent CXL Memory
Jiyu Hu, Seokjoo Cho*, Landon Johnson*, Kiran Hombal, , Marcos K. Aguilera, Ramnatthan Alagappan, Aishwarya Ganesan
OSDI'26 | Operating Systems Design and Implementation
Jay Lepreau Best Paper Award Nominee
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*equal contribution
A Logically Disaggregated Cache for Replicated Storage Systems
Kiran Hombal, Henry Zhu, , Neil Kaushikkar, Ramnatthan Alagappan, Aishwarya Ganesan
EuroSys'26 | European Conference on Computer Systems
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Low End-to-End Latency atop a Speculative Shared Log with Fix-Ante Ordering
, Tony Hong, Xuhao Luo, Jiyu Hu, Aishwarya Ganesan, Ramnatthan Alagappan
OSDI'25 | Operating Systems Design and Implementation
Covered on Metadata: link
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LazyLog: A New Shared Log Abstraction for Low-Latency Applications
Xuhao Luo, , Jiyu Hu*, Ramnatthan Alagappan, Aishwarya Ganesan
SOSP'24 | Symposium on Operating Systems Principles
Best Paper Award
Invited to Transactions on Computer Systems
Influenced Lightning Topics in WarpStream: link
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*equal contribution
Automating Cutoff-based Verification of Distributed Protocols
, Kartik Nagar
FMCAD'23 | Formal Methods in Computer-Aided Design
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Brief Announcement: Automating and Mechanising Cutoff Proofs for Parameterized Verification of Distributed Protocols
, Kartik Nagar
DISC'21 | International Symposium on DIStributed Computing
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Workshop Publications
Agents for Data Streaming Tasks: The Missing Pieces
, Landon Johnson*, Michael Noguera*, Aishwarya Ganesan, Ramnatthan Alagappan
CAIS'26 SAO | Supporting our AI Overlords Workshop at CAIS, May 2026
Spotlight
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*equal contribution
Refereed Journal Publications
LazyLog: A New Shared Log Abstraction and Design for Modern Low-Latency Applications
Xuhao Luo, , Jiyu Hu*, Ramnatthan Alagappan, Aishwarya Ganesan
TOCS | ACM Transactions on Computer Systems, August 2025
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Invited
Invited Talks
Forkable Shared Logs: Enabling Testing, Analysis, and Agentic Workloads on Real-Time Data
Stream Processing with Apache Kafka, Samza, and Flink Meetup hosted by LinkedIn
June 24, 2026 | Sunnyvale, CA + online
meetup event
video
Service
Artifact Evaluation Committee: OSDI'24, ATC'24, FAST'26 (Spring and Fall)
Shadow Program Committees: EuroSys'26
Student Volunteer: SOSP'24
Teaching
CS598 Storage Systems, TA, Fall 2025
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