Sam H. Noh
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| title | conference | date |
|---|---|---|
| Cylon: Fast and Accurate Full-System Emulation of CXL-SSDs | FAST '26 | 2026-02-24 |
Cylon is a full-system CXL-SSD emulator that reproduces sub-μs cache hits (≈800 ns, fast path at 0.16 μs, claimed 92× speedup vs KimU) and tens-of-μs misses… | ||
| Characterizing and Emulating FDP SSDs with WARP | FAST '26 | 2026-02-24 |
Presents WARP, an open FPGA‑based emulator and study that shows FDP SSDs sustain near-1 WAF only when RUH isolation matches object lifetimes… | ||
| DOGI: Data Placement with Oracle-Guided Insights for Log-Structured Systems | FAST '26 | 2026-02-24 |
Presents DOGI, a data-placement system that combines a hybrid heuristic+ML predictor (hot and frozen filters plus an MLP with six features and 10 outputs) with… | ||
| UnICom: A Universally High-Performant I/O Completion Mechanism for Modern Computer... | FAST '26 | 2026-02-24 |
UnICom implements three kernel mechanisms—TagSched, TagPoll, and SKIP—in Linux to consolidate polling on a dedicated core, retain tagged sleeping tasks on CPU… | ||
| AWUPF Rediscovered: Atomic Writes to Unleash Pivotal Fault-Tolerance in SSDs | FAST '25 | 2025-02-25 |
Claim: use the SSD NVMe AWUPF atomic-write unit (commonly 4KB AWUPF) to skip journaling for small Log‑RAID metadata updates, implemented in Poseidon OS by… | ||
| MIDAS: Minimizing Write Amplification in Log-Structured Systems through Adaptive Group... | 22nd USENIX Conference on File and Storage Technologies (FAST '24) | 2024-02-27 |
MiDAS minimizes garbage-collection write amplification by organizing data into a chain of adaptive groups, automatically tuning number of groups and group… | ||
| ADOC: Automatically Harmonizing Dataflow Between Components in Log-Structured Key-Value | FAST '23: 21st USENIX Conference on File and Storage Technologies | 2023-02-21 |
Claims that LSM write stalls come from a universal data overflow — imbalanced input vs output across memtable, L0 and deeper compactions — and not any single… | ||
| On Stacking a Persistent Memory File System on Legacy File Systems | FAST '23: 21st USENIX Conference on File and Storage Technologies | 2023-02-21 |
SPFS stacks a persistent memory layer on top of legacy file systems (ext4, f2fs, xfs) and exposes NVMM (Intel DCPMM, MBDM) as a persistent writeback cache that… | ||
| Revitalizing the Forgotten On-Chip DMA to Expedite Data Movement in NVM-based Storage | FAST '23: 21st USENIX Conference on File and Storage Technologies | 2023-02-21 |
Claims that reviving the on-chip DMA plus CPU cooperation cuts DRAM↔NVM data-movement cost and lowers the I/O size threshold (reads benefit above ~32 KB… | ||
| A Log-Structured Merge Tree-aware Message Authentication Scheme for Persistent... | FAST '22 | 2022-02-22 |
TWEEZER extends RocksDB and implements per-SST authentication keys plus a hash chain to avoid slow hardware counters, reproduces Speicher for comparison, and… | ||
| First Responder: Persistent Memory Simultaneously as High Performance Buffer... | USENIX ATC '21 | 2021-07-14 |
Build: a PM-resident cache/storage layer inside the block I/O path that keeps chunks + tags with a two-way layout, uses static placement and periodic… | ||
| HetPipe: Enabling Large DNN Training on (Whimpy) Heterogeneous GPU Clusters through | USENIX ATC '20 | 2020-07-15 |
HetPipe is a system that combines pipelined model parallelism with data parallelism by grouping heterogeneous GPUs into a virtual worker that runs concurrent… | ||
| Synergetic effects of Software and Hardware Parameters on the LSM system. | 12th USENIX Workshop on Hot Topics in Storage and File Systems (HotStorage '20) | 2020-07-13 |
Shows that LSM tunables interact with storage type: fio benchmarks and RocksDB runs reveal HDD/SSD/NVMe/persistent memory behave differently — fio benchmark… | ||
| Pre-Select Static Caching and Neighborhood Ordering for BFS-like Algorithms on Disk-based Graph Engines | USENIX ATC '19 | 2019-07-10 |
Proposes a pre-selected in-memory static cache called Basc that stores chosen vertices' edge lists throughout traversal and an I/O-cost-driven graph reorder… | ||
| Alleviating Garbage Collection Interference Through Spatial Separation in All Flash Arrays | USENIX ATC '19 | 2019-07-10 |
SWAN partitions an all-flash array into spatial separation front-end SSDs that absorb app writes and back-end SSDs that perform GC, implemented in the host… | ||
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