Author

Youngjae Kim

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Preprint Sep 2026

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

Log-Structured Merge-tree (LSM) aims to achieve high write throughput, but is known to experience the write stall problems when subjected to sustained write pressure. We quantify the occurrence probability and average duration of write stalls in LSM using a queuing model in the write--flush--compaction pipeline, moving...

Hongsu Byun, Safdar Jamil, Honghyeon Yoo et al. · 0 citations

Conference Jul 2026

CODA: Breaking CPU Bottlenecks for Scalable Ceph with DPU-Based OSD Decoupling

Ceph, a widely used distributed storage system, underutilizes NVMe SSD bandwidth due to CPU bottlenecks, even in high-performance environments. This inefficiency is amplified in resource-constrained settings such as edge clouds and small-scale clusters. Prior work offloads the transport layer (e.g., TCP/IP) to DPUs, bu...

Kyuli Park, Sungmin Yoon, Awais Khan et al. · IEEE International Conferenc... · 0 citations