DiaSys @ KAU


Data Infrastructure, Storage System, System Software

Announcements

We are recruiting undergraduate research interns and M.S. students. Interested students are welcome to apply.

학부연구생 및 석사과정 학생을 모집하고 있습니다. 관심 있는 학생들은 이메일(hsbyun@kau.ac.kr)을 보내주세요.

석사과정 진학을 희망하는 학생은 입학 전 학부연구생을 적극 권장합니다.

Sep 11, 2026 — “DiaLSM: Towards Write-Stall-Free Performance via Shard-based LSM-tree” was accepted to IEEE ICDE 2027.

Sep 1, 2026 — DiaSys Lab officially opened!

Latest Publications

DiaLSM: Towards Write-Stall-Free Performance via Shard-based LSM-tree

Hongsu Byun, Safdar Jamil , Honghyeon Yoo ,Sungyong Park, Myungcheol Lee, Xubin He, Zhichao Cao, Youngjae Kim
In Proceedings of the IEEE International Conference on Data Engineering (ICDE) (2027), Copenhagen, Denmark, May 17-21, 2027. (Acceptance rate: under 20%)

Ditto: Online Memory Rightsizing and Value-Aware Eviction for Reducing Cold Starts in Serverless Platforms

Dongjae Lee, Kyuli Park, Yeonwoo Jeong, Hongsu Byun, Sungyong Park
In Proceedings of the IEEE International Conference on Cloud Computing (CLOUD) (2026), Sydney, Australia, July 13-18, 2026.

Dual-Blade: Dual-Path NVMe-Direct KV-Cache Offloading for Edge LLM Inference

Bodon Jeong, Hongsu Byun, Youngjae Kim, Weikuan Yu, Kyungkeun Lee, Jihoon Yang, Sungyong Park
In Proceedings of IEEE International Conference on Distributed Computing Systems (ICDCS) (2026), Seoul, South Korea, June 22-25, 2026. (Acceptance rate: 18.59%)

Quicktopia: Iteration-Level GPU Frequency Control for Energy–Latency Co-Optimization in LLM Inference,

Soyang Baek, Bodon Jeong, Hongsu Byun, Sungyong Park
In Proceedings of the IEEE International Symposium on Cluster, Cloud and Grid Computing (CCGRID) (2026), Sydney, Australia, May 18-21, 2026. (Acceptance Rate: 62/247 = 25.1%)

Resystance: Unleashing Hidden Performance of Compaction in LSM-trees via eBPF,

Hongsu Byun, Seungjae Lee, Honghyeon Yoo, Myoungjoon Kim, Sungyong Park
In Proceedings of the IEEE International Conference on Data Engineering (ICDE) (2026), Montréal, Canada, May 4-8, 2026.

Paper News

PACMAN: Power Usage-Aware Capping and Management for All-Flash Storage Servers

Bodon Jeong, Hongsu Byun, Kyungkeun Lee, Bumjun Kim, Jeong-Uk Kang, Sungyong Park
In Proceedings of the International Symposium on Modeling, Analysis and Simulation of Computer and Telecommunication Systems (MASCOTS), Paris, France, October 21-23, 2025. (Acceptance rate: 24%)

Paper

Revisiting Multi-threaded Compaction in LSM-trees: Enabling Compaction Pipelining

Hongsu Byun, Honghyeon Yoo, Sungyong Park
In Proceedings of the International Conference on Parallel Processing (ICPP) (2025), San Diego, CA, USA, September 8-11, 2025. (Acceptance rate: 78/292 = 26.7%)

Paper News

See All