arXiv
Publications
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Preprints
preprint
DDBench: A Benchmark for Agentic Debugging on Distributed Systems
Yibo Yan, Huijuan Wang, Junzhou He, Yizhuo Liang, Shaoyu Wang, Huanchen Sun, Seo Jin Park
Apr 2026 · Under submission
bib
@misc{yan26ddbench,
title = {DDBench: A Benchmark for Agentic Debugging on Distributed Systems},
author = {Yibo Yan and Huijuan Wang and Junzhou He and Yizhuo Liang and Shaoyu Wang and Huanchen Sun and Seo Jin Park},
year = {2026},
month = {April},
note = {Under submission}
}2026
SOSP '26
DDB: Source-Level Interactive Debugging for Distributed Applications
Yibo Yan, Junzhou He, Seo Jin Park
The 32nd ACM Symposium on Operating Systems Principles, Oct 2026
bib
@inproceedings{yan26ddb,
title = {DDB: Source-Level Interactive Debugging for Distributed Applications},
author = {Yibo Yan and Junzhou He and Seo Jin Park},
booktitle = {The 32nd ACM Symposium on Operating Systems Principles (SOSP '26)},
year = {2026},
month = {October},
}SOSP '26
Democratizing MoE LLM Decoding via Barrier-Free Expert Parallelism
Yizhuo Liang, Shaoyu Wang, Jaeyong Song, Yanqi Zhou, Geon-Woo Kim, Guangrong He, Seo Jin Park
The 32nd ACM Symposium on Operating Systems Principles, Oct 2026
bib
@inproceedings{liang26fluidep,
title = {Democratizing MoE LLM Decoding via Barrier-Free Expert Parallelism},
author = {Yizhuo Liang and Shaoyu Wang and Jaeyong Song and Yanqi Zhou and Geon-Woo Kim and Guangrong He and Seo Jin Park},
booktitle = {The 32nd ACM Symposium on Operating Systems Principles (SOSP '26)},
year = {2026},
month = {October},
}2025
APSys '25
Towards Microsecond-Scale VM Core Provisioning Agility on Serverless Platforms
Yibo Yan, Seo Jin Park
Proceedings of the 16th ACM SIGOPS Asia-Pacific Workshop on Systems, Oct 2025paper
bib
@inproceedings{yan25hyperflux,
author = {Yan, Yibo and Park, Seo Jin},
title = {Towards Microsecond-Scale VM Core Provisioning Agility on Serverless Platforms},
year = {2025},
month = {October},
isbn = {9798400715723},
publisher = {Association for Computing Machinery},
address = {New York, NY, USA},
url = {https://doi.org/10.1145/3725783.3764396},
doi = {10.1145/3725783.3764396},
booktitle = {Proceedings of the 16th ACM SIGOPS Asia-Pacific Workshop on Systems},
pages = {176–184},
numpages = {9},
keywords = {serverless computing, vertical scaling, lightweight isolation, KVM, core (re)allocation},
location = {Lotte Hotel World, Emerald Hall, Seoul, Republic of Korea},
series = {APSys '25},
}HotOS '25
Granular Resource Demand Heterogeneity
Yizhuo Liang, Ramesh Govindan, Seo Jin Park
The 20th Workshop on Hot Topics in Operating Systems, May 2025paper
bib
@inproceedings{liang25granular,
title = {Granular Resource Demand Heterogeneity},
author = {Yizhuo Liang and Ramesh Govindan and Seo Jin Park},
booktitle = {The 20th Workshop on Hot Topics in Operating Systems (HotOS '25)},
year = {2025},
month = {May},
}NSDI '25
Quicksand: Harnessing Stranded Datacenter Resources with Granular Computing
Zhenyuan Ruan, Shihang Li, Kaiyan Fan, Marcos K. Aguilera, Adam Belay, Seo Jin Park, Malte Schwarzkopf
22nd USENIX Symposium on Networked Systems Design and Implementation, Apr 2025paper & slides
bib
@inproceedings{ruan25quicksand,
title = {Quicksand: Harnessing Stranded Datacenter Resources with Granular Computing},
author = {Zhenyuan Ruan and Shihang Li and Kaiyan Fan and Marcos K. Aguilera and Adam Belay and Seo Jin Park and Malte Schwarzkopf},
booktitle = {22nd USENIX Symposium on Networked Systems Design and Implementation (NSDI '25)},
year = {2025},
month = {April},
}2024
HotCarbon '24
Lovelock: Towards Smart NIC-hosted Clusters
Seo Jin Park, Ramesh Govindan, Kai Shen, David Culler, Fatma Özcan, Geon-Woo Kim, Hank Levy
HotCarbon Workshop on Sustainable Computer Systems, Jul 2024paper
bib
@inproceedings{park24lovelock,
title = {Lovelock: Towards Smart NIC-hosted Clusters},
author = {Seo Jin Park and Ramesh Govindan and Kai Shen and David Culler and Fatma Özcan and Geon-Woo Kim and Hank Levy},
booktitle = {HotCarbon Workshop on Sustainable Computer Systems (HotCarbon '24)},
year = {2024},
month = {July},
}NSDI '24
LDB: An Efficient Latency Debugging Tool for Datacenter Applications
Inho Cho, Seo Jin Park, Ahmed Saeed, Mohammad Alizadeh, Adam Belay
21st USENIX Symposium on Networked Systems Design and Implementation, Apr 2024paper
bib
@inproceedings{cho24ldb,
title = {LDB: An Efficient Latency Debugging Tool for Datacenter Applications},
author = {Inho Cho and Seo Jin Park and Ahmed Saeed and Mohammad Alizadeh and Adam Belay},
booktitle = {21st USENIX Symposium on Networked Systems Design and Implementation (NSDI '24)},
year = {2024},
month = {April},
}2023
HotOS '23
Unleashing True Utility Computing with Quicksand
Zhenyuan Ruan, Shihang Li, Kaiyan Fan, Marcos K. Aguilera, Adam Belay, Seo Jin Park, Malte Schwarzkopf
The 19th Workshop on Hot Topics in Operating Systems, Jun 2023paper
bib
@inproceedings{ruan23quicksand,
title = {Unleashing True Utility Computing with Quicksand},
author = {Zhenyuan Ruan and Shihang Li and Kaiyan Fan and Marcos K. Aguilera and Adam Belay and Seo Jin Park and Malte Schwarzkopf},
booktitle = {The 19th Workshop on Hot Topics in Operating Systems (HotOS '23)},
year = {2023},
month = {June},
}NSDI '23
Nu: Achieving Microsecond-Scale Resource Fungibility with Logical Processes
Zhenyuan Ruan, Seo Jin Park, Marcos K. Aguilera, Adam Belay, Malte Schwarzkopf
20th USENIX Symposium on Networked Systems Design and Implementation, Apr 2023paper & talk
bib
@inproceedings{ruan23nu,
title = {Nu: Achieving Microsecond-Scale Resource Fungibility with Logical Processes},
author = {Zhenyuan Ruan and Seo Jin Park and Marcos K. Aguilera and Adam Belay and Malte Schwarzkopf},
booktitle = {20th USENIX Symposium on Networked Systems Design and Implementation (NSDI '23)},
year = {2023},
month = {April},
}NSDI '23
Protego: Overload Control for Applications with Unpredictable Lock Contention
Inho Cho, Ahmed Saeed, Seo Jin Park, Mohammad Alizadeh, Adam Belay
20th USENIX Symposium on Networked Systems Design and Implementation, Apr 2023paper & talk
bib
@inproceedings{cho23protego,
title = {Protego: Overload Control for Applications with Unpredictable Lock Contention},
author = {Inho Cho and Ahmed Saeed and Seo Jin Park and Mohammad Alizadeh and Adam Belay},
booktitle = {20th USENIX Symposium on Networked Systems Design and Implementation (NSDI '23)},
year = {2023},
month = {April},
}2022
MLSys '22
Efficient Strong Scaling Through Burst Parallel Training
Seo Jin Park, Joshua Fried, Sunghyun Kim, Mohammad Alizadeh, Adam Belay
5th Conference on Machine Learning and Systems, Aug 2022papertalk
bib
@inproceedings{park22burstparallel,
title = {Efficient Strong Scaling Through Burst Parallel Training},
author = {Seo Jin Park and Joshua Fried and Sunghyun Kim and Mohammad Alizadeh and Adam Belay},
booktitle = {5th Conference on Machine Learning and Systems (MLSys '22)},
year = {2022},
month = {August},
}NSDI '22
DispersedLedger: High-Throughput Byzantine Consensus on Variable Bandwidth Networks
Lei Yang, Seo Jin Park, Mohammad Alizadeh, Sreeram Kannan, David Tse
19th USENIX Symposium on Networked Systems Design and Implementation, Apr 2022paper & talk
bib
@inproceedings{yang22dispersedledger,
title = {DispersedLedger: High-Throughput Byzantine Consensus on Variable Bandwidth Networks},
author = {Lei Yang and Seo Jin Park and Mohammad Alizadeh and Sreeram Kannan and David Tse},
booktitle = {19th USENIX Symposium on Networked Systems Design and Implementation (NSDI '22)},
year = {2022},
month = {April},
}2021
NSDI '21
EPaxos Revisited
Sarah Tollman, Seo Jin Park, John Ousterhout
18th USENIX Symposium on Networked Systems Design and Implementation, Apr 2021paper & talk
bib
@inproceedings{tollman21epaxos,
title = {EPaxos Revisited},
author = {Sarah Tollman and Seo Jin Park and John Ousterhout},
booktitle = {18th USENIX Symposium on Networked Systems Design and Implementation (NSDI '21)},
year = {2021},
month = {April},
}NSDI '21
MilliSort and MilliQuery: Large-Scale Data-Intensive Computing in Milliseconds
Yilong Li*, Seo Jin Park*, John Ousterhout · * co-first authors
18th USENIX Symposium on Networked Systems Design and Implementation, Apr 2021paper & talk
bib
@inproceedings{li21millisort,
title = {MilliSort and MilliQuery: Large-Scale Data-Intensive Computing in Milliseconds},
author = {Yilong Li and Seo Jin Park and John Ousterhout},
booktitle = {18th USENIX Symposium on Networked Systems Design and Implementation (NSDI '21)},
year = {2021},
month = {April},
}2020
OSDI '20
Overload Control for µs-scale RPCs with Breakwater
Inho Cho, Ahmed Saeed, Joshua Fried, Seo Jin Park, Mohammad Alizadeh, Adam Belay
14th USENIX Symposium on Operating Systems Design and Implementation, Nov 2020papervideo
bib
@inproceedings{cho20breakwater,
title = {Overload Control for µs-scale RPCs with Breakwater},
author = {Inho Cho and Ahmed Saeed and Joshua Fried and Seo Jin Park and Mohammad Alizadeh and Adam Belay},
booktitle = {14th USENIX Symposium on Operating Systems Design and Implementation (OSDI '20)},
year = {2020},
month = {November},
}2019
APNet '19
Toward Scalable Replication Systems with Predictable Tails Using Programmable Data Planes
Sean Choi, Seo Jin Park, Muhammad Shahbaz, Balaji Prabhakar, Mendel Rosenblum
3rd Asia-Pacific Workshop on Networking, Aug 2019 ★ Best Paper Awardpaper
bib
@inproceedings{choi19replication,
title = {Toward Scalable Replication Systems with Predictable Tails Using Programmable Data Planes},
author = {Sean Choi and Seo Jin Park and Muhammad Shahbaz and Balaji Prabhakar and Mendel Rosenblum},
booktitle = {3rd Asia-Pacific Workshop on Networking (APNet '19)},
year = {2019},
month = {August},
}NSDI '19
Exploiting Commutativity For Practical Fast Replication
Seo Jin Park, John Ousterhout
16th USENIX Symposium on Networked Systems Design and Implementation, Feb 2019papervideo
bib
@inproceedings{park19curp,
title = {Exploiting Commutativity For Practical Fast Replication},
author = {Seo Jin Park and John Ousterhout},
booktitle = {16th USENIX Symposium on Networked Systems Design and Implementation (NSDI '19)},
year = {2019},
month = {February},
}2018
ATC '18
NanoLog: A Nanosecond Scale Logging System
Stephen Yang, Seo Jin Park, John Ousterhout
2018 USENIX Annual Technical Conference, Jul 2018paperslides
bib
@inproceedings{yang18nanolog,
title = {NanoLog: A Nanosecond Scale Logging System},
author = {Stephen Yang and Seo Jin Park and John Ousterhout},
booktitle = {2018 USENIX Annual Technical Conference (ATC '18)},
year = {2018},
month = {July},
}2015
SOSP '15
Implementing Linearizability at Large Scale and Low Latency
Collin Lee*, Seo Jin Park*, Ankita Kejriwal, Satoshi Matsushita, John Ousterhout · * co-first authors
The 25th ACM Symposium on Operating Systems Principles, Oct 2015papervideo
bib
@inproceedings{lee15rifl,
title = {Implementing Linearizability at Large Scale and Low Latency},
author = {Collin Lee and Seo Jin Park and Ankita Kejriwal and Satoshi Matsushita and John Ousterhout},
booktitle = {The 25th ACM Symposium on Operating Systems Principles (SOSP '15)},
year = {2015},
month = {October},
}TOCS
The RAMCloud Storage System
John Ousterhout, Arjun Gopalan, Ashish Gupta, Ankita Kejriwal, Collin Lee, Behnam Montazeri, Diego Ongaro, Seo Jin Park, Henry Qin, Mendel Rosenblum, Stephen Rumble, Ryan Stutsman, Stephen Yang
ACM Transactions on Computer Systems 33(3), Aug 2015paper
bib
@article{ousterhout15ramcloud,
title = {The RAMCloud Storage System},
author = {John Ousterhout and Arjun Gopalan and Ashish Gupta and Ankita Kejriwal and Collin Lee and Behnam Montazeri and Diego Ongaro and Seo Jin Park and Henry Qin and Mendel Rosenblum and Stephen Rumble and Ryan Stutsman and Stephen Yang},
journal = {ACM Transactions on Computer Systems (TOCS)},
volume = {33},
number = {3},
year = {2015},
month = {August},
}