Youngjin Kwon
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| title | conference | date |
|---|---|---|
| Oxbow: A Coordinated Architecture for Multi-Component File Systems | 20th USENIX Symposium on Operating Systems Design and Implementation (OSDI '26) | 2026-07-13 |
Oxbow builds a three-part file system (user daemon, kernel ufs, device server) that routes reads through the kernel and sends writes directly to a… | ||
| Revisiting Partial Tracing for Safe, Efficient, and Concurrent Garbage Collection in(…) | PLDI 2026 | 2026-06-15 |
Implements a library-quality concurrent GC for unmanaged languages that keeps precise reference-counted roots and traces the heap, using phase consensus and a… | ||
| Identifying On-/Off-CPU Bottlenecks Together with Blocked Samples | 18th USENIX Symposium on Operating Systems Design and Implementation (OSDI '24) | 2024-07-10 |
Proposes blocked samples that simultaneously record on- and off-CPU events by capturing the last instruction pointer and call chain and an off-CPU subclass… | ||
| EnvPipe: Performance-preserving DNN Training Framework for Saving Energy | USENIX ATC '23 | 2023-07-10 |
EnvPipe is a PyTorch library that profiles each pipeline stage, reschedules pipeline units to expose usable pipeline bubbles, and selectively lowers GPU SM… | ||
| Rearchitecting the TCP Stack for I/O-Offloaded Content Delivery | NSDI 2023 | 2023-04-17 |
Claims a split TCP stack called IO-TCP that keeps control on the host CPU and pushes high-throughput data work to SmartNICs, using p2p PCIe DMA so the NIC… | ||
| Serving Heterogeneous Machine Learning Models on Multi-GPU Servers... | USENIX ATC '22 | 2022-07-11 |
A multi-model scheduling framework implements spatial and temporal packing of GPU resources into configurable virtual partitions called gpulets, profiles… | ||
| Memory Harvesting in Multi-GPU Systems with Hierarchical Unified Virtual Memory | USENIX ATC '22 | 2022-07-11 |
Implements a hierarchical unified virtual memory (HUVM) that spills GPU pages to neighbor GPUs over NVLink instead of host PCIe, and ships a centralized memory… | ||
| Zico: Efficient GPU Memory Sharing for Concurrent DNN Training | USENIX ATC '21 | 2021-07-14 |
Zico builds a shared GPU memory pool plus a memory manager that uses CUDA events and an in‑flight kernel counter to safely reclaim and limit allocations, and a… | ||
| Rethinking File Mapping for Persistent Memory | FAST '21 | 2021-02-23 |
Finds that file mapping consumes as much as 70% of the IO path on Intel Optane DC persistent memory and shows page-cache metadata caching hurts performance… | ||
| Libnvmmio:Reconstructing Software IO Path w/ Failure-Atomic Memory-Mapped Interface | USENIX ATC '20 | 2020-07-15 |
Libnvmmio: Reconstructing Software IO Path with Failure-Atomic Memory-Mapped Interface
Jungsik Choi, Sungkyunkwan University; Jaewan Hong and Youngjin Kwon… | ||
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