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.
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%)
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%)
KVAccel: A Novel Write Accelerator for LSM-Tree-Based KV Stores with Host-SSD Collaboration,
KiHwan Kim, Hyunsun Chung, Seonghoon Ahn, Junhyeok Park, Safdar Jamil, Hongsu Byun, Myungcheol Lee, Jinchun Choi, Youngjae Kim
In Proceedings of the IEEE International Parallel and Distributed Processing Symposium (IPDPS) (2025), Milan, Italy, June 3-7, 2025.
ECO-KVS: Energy-aware Compaction Offloading Mechanism for LSM-tree based Key-Value Stores in Edge Federation
Jeeseob Kim, Hongsu Byun, Seungjae Lee, Myoungjoon Kim, Youngjae Kim, Zaipeng Xie, Sungyong Park
In Proceedings of the IEEE International Symposium on Cluster, Cloud and Grid Computing (CCGRID) (2025), Tromsø, Norway, May 19-22, 2025. (Acceptance Rate: 5/219 = 25.1%)
dStream: An Online-based Dynamic Operator-level Query Mapping Scheme on Discrete CPU-GPU Architectures,
Gyeonghwan Jung, Yeonwoo Jeong, Kyuri Park, Dongjae Lee, Hongsu Byun, Suyeon Lee, Sungyong Park
IEEE Access, Vol.13, pp. 8239-8256, December 4, 2024.
Refining Compaction Offloading I/O Stack for LSM-based Key-value Stores with SPDK
Honghyeon Yoo, Hongsu Byun, Sungyong Park
In Proceedings of the IEEE International Conference on Cluster Computing (CLUSTER) (Poster) (2024), September 24-27, 2024.
An Analytical Model-based Capacity Planning Approach for Building CSD-based Storage Systems
Hongsu Byun, Safdar Jamil, Jungwook Han, Sungyong Park, Myungcheol Lee, Changsoo Kim, Beongjun Choi, Youngjae Kim
ACM Transactions on Embedded Computing Systems (TECS) (2024), Vol.23, Issue 6, No. 92, pp. 1-25, September 11, 2024.
Evaluation of Erasure Coding and Opportunistic Offloading Algorithms using DPU in Distributed Storage Systems
Junghyun Ryu, Hongsu Byun, Myungcheol Lee, Jinchun Choi, Youngjae Kim
In Proceedings of the IEEE Non-Volatile Memory Systems and Applications (NVMSA) (2024), Sokcho, Korea, August 21-23, 2024.
Coordinating Compaction between LSM-tree based Key-Value Stores for Edge Federation
Jeeseob Kim, Honghyeon Yoo, Seungjae Lee, Hongsu Byun, Sungyong Park
In Proceedings of the IEEE International Conference on Cloud Computing (CLOUD) (2024), Shenzhen, China, July 7-13, 2024. (Acceptance rate: 19.4%)
Provisioning CSD-based Storage Systems with Erasure-Coding Offloaded to the CSD
Hongsu Byun, SafdarJamil, Junghyun Ryu, Sungyong Park, Myungcheol Lee, Sung-Soon Park, Youngjae Kim,
Journal of Semiconductor Technology and Science (JSTS), Vol. 24, no. 1, pp.273-282, February 1, 2024.
Is Data Migration Evil in the NVM File System?
Jungwook Han, Hongsu Byun, Hyeongjoon Kwon, Sungyong Park, Youngjae Kim,
International Workshop on Autonomic Management of high performance Grid and Cloud Computing (AMGCC) (2021), Virtual, September 27, 2021.