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Qiuping Wang

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How Soon is Now? Preloading Images for Virtual Disks with ThinkAheadFAST '262026-02-24
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…
Talk
What's the Story in EBS Glory: Evolutions and Lessons in Building Cloud Block Store22nd USENIX Conference on File and Storage Technologies (FAST '24)2024-02-27
Three generations of Alibaba Cloud Block Store evolve from a simple two-layer replica model to an SSD/RSBD plus Pangu backend and finally to a…
Talk on
Separating Data via Block Invalidation Time Inference for Write Amplification Reduction...FAST '222022-02-22
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…
Talk on
Austere Flash Caching with Deduplication and CompressionUSENIX ATC '202020-07-15
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…
Talk
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