Patrick P. C. Lee
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| title | conference | date |
|---|---|---|
| Holistic and Automated Task Scheduling for Distributed LSM-tree-based Storage | FAST '26 | 2026-02-24 |
HATS is a scheduler implemented atop Cassandra that co-schedules reads and compactions, using coarse-grained replica selection (epochal 60s global balancing… | ||
| How Soon is Now? Preloading Images for Virtual Disks with ThinkAhead | FAST '26 | 2026-02-24 |
Trace analysis of ~160,000 image loads finds lazy loading causes 40% of slow I/Os (>1s), so ThinkAhead preloads blocks using score-based block selection… | ||
| LESS is More for I/O-Efficient Repairs in Erasure-Coded Storage | FAST '26 | 2026-02-24 |
LESS layers extended sub-stripes built from Reed-Solomon coding to reduce both data read and non‑contiguous seeks during single-block repair, implemented on… | ||
| ShieldReduce: Fine-Grained Shielded Data Reduction | USENIX ATC '25 | 2025-07-07 |
System design applies Intel SGX enclave to perform deduplication, delta and local compression inside a trusted environment, using a novel bi-directional delta… | ||
| ELECT: Enabling Erasure Coding Tiering for LSM-tree-based Storage | 22nd USENIX Conference on File and Storage Technologies (FAST '24) | 2024-02-27 |
ELECT implements hybrid redundancy on top of Cassandra, encoding LSM last-level SSTables offline into erasure-coded coding groups while keeping hot keys… | ||
| FarReach: Write-back Caching in Programmable Switches | USENIX ATC '23 | 2023-07-10 |
FarReach implements an in-switch write-back cache on a Tofino switch with P4 and a RoxDB backend, claiming up to 6.6× throughput versus a NetCache baseline… | ||
| ParaRC: Embracing Sub-Packetization for Repair Parallelization in MSR-Coded Storage | FAST '23: 21st USENIX Conference on File and Storage Technologies | 2023-02-21 |
ParaRC leverages sub-packetization of MSR codes to parallelize sub-block repairs, models the problem as a colored graph called a PEC DAG to expose the… | ||
| Secure and Lightweight Deduplicated Storage via Shielded Deduplication... | USENIX ATC '22 | 2022-07-11 |
DEBE implements deduplication-before-encryption inside an Intel SGX enclave, using a count‑min sketch + top‑K heap to remove hot chunks in‑enclave and a… | ||
| DEPART: Replica Decoupling for Distributed Key-Value Storage | FAST '22 | 2022-02-22 |
DEPART implements replica decoupling by storing primaries in an LSM and redundant copies in a separate two-layer log with tunable ordering, implemented as a… | ||
| Separating Data via Block Invalidation Time Inference for Write Amplification Reduction... | FAST '22 | 2022-02-22 |
Claims an algorithm, SepBIT, that infers each block’s block-invalidation time (BIT) from workload traces and groups blocks with similar estimated BITs to cut… | ||
| Accelerating Encrypted Deduplication via SGX | USENIX ATC '21 | 2021-07-14 |
System implements SGXDedup: an SGX-enclave based, server-aided MLE system that moves key generation and proof-of-ownership into enclaves. Claims 131.9× faster… | ||
| Boosting Full-Node Repair in Erasure-Coded Storage | USENIX ATC '21 | 2021-07-14 |
RepairBoost is a scheduling framework that speeds full-node repair for linear erasure codes by building a DAG repair abstraction, balancing upload and download… | ||
| Differentiated Key-Value Storage Management for Balanced I/O Performance | USENIX ATC '21 | 2021-07-14 |
DiffKV builds a prototype on TiKV/Titan that splits keys and values and uses a V3 multi-level value tree plus fine-grained KV separation (small/medium/large)… | ||
| Exploiting Combined Locality for Wide-Stripe Erasure Coding in Distributed Storage | FAST '21 | 2021-02-23 |
Proposes combined locality that mixes parity locality and topology locality, constructs stripes by placing HRC-coded chunks across racks with c=f, and… | ||
| An In-Depth Study of Correlated Failures in Production SSD-Based Data Centers | FAST '21 | 2021-02-23 |
Analysis of nearly one million SSDs from Alibaba across 11 drive models shows intra-node and intra-rack correlated failures are common and group sizes… | ||
| Austere Flash Caching with Deduplication and Compression | USENIX ATC '20 | 2020-07-15 |
AustereCache claims to cut in-memory index overhead by 69.9–97.0% versus prior dedup+compress flash caches while keeping similar read hit and write-reduction… | ||
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