~/talks

Cheng Li

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Libra: Flexible Request Partitioning and Scheduling for Serving Unbalanced and Dynamic...NSDI '262026-05-04
Libra implements a micro-request flexible partitioning that splits requests at any token boundary, a global scheduler that binary-searches a split point (≤6…
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AutoCCL: Automated Collective Communication Tuning for Accelerating Distributed and...NSDI '252025-04-28
AutoCCL automates low-level tuning of NCCL to cut communication overhead: it prunes NCCL's 158 knobs to 28 parameters, partitions the huge search space with a…
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nnScaler: Constraint-Guided Parallelization Plan Generation for Deep Learning Training18th USENIX Symposium on Operating Systems Design and Implementation (OSDI '24)2024-07-10
A plan-generation framework implements three primitives op-trans, op-assign, op-order plus constraint filters so experts compose custom parallelization spaces…
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Revitalizing the Forgotten On-Chip DMA to Expedite Data Movement in NVM-based StorageFAST '23: 21st USENIX Conference on File and Storage Technologies2023-02-21
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…
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SpanDB: A Fast, Cost-Effective LSM-tree Based KV Store on Hybrid StorageFAST '212021-02-23
SpanDB adapts RocksDB to put write-ahead logs and the top LSM levels on a small NVMe while keeping bulk SSTables on cheaper SSDs, implements SPDK for polling…
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DLSpec: A Deep Learning Task Exchange SpecificationOpML '202020-07-28
Claims a reproducible DL task format that is model-, dataset-, software-, and hardware-agnostic, defines tasks as four manifest files (hardware, software…
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ElasticBF: Elastic Bloom Filter with Hotness Awareness for Boosting Read Performance in Large Key-Value StoresUSENIX ATC '192019-07-10
ElasticBF: Elastic Bloom Filter with Hotness Awareness for Boosting Read Performance in Large Key-Value Stores Yongkun Li, Chengjin Tian, Fan Guo, Cheng Li…
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Use Cases and Lessons Learned From Kata Container Deployment in ProductionKubeCon + CloudNativeCon + Open Source Summit China 20192019-06-24
Use Cases and Lessons Learned From Kata Container Deployment in Production - Cheng Li & Jian Huang, Huawei Kata container has been used in a serverless k8s…
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Use Cases and Lessons Learned From Kata Container Deployment in ProductionKubeCon + CloudNativeCon China 20192019-06-24
Join us for Kubernetes Forums Seoul, Sydney, Bengaluru and Delhi - learn more at kubecon.io Don't miss KubeCon + CloudNativeCon 2020 events in Amsterdam March…
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