Youjip Won
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| title | conference | date |
|---|---|---|
| DJFS : Directory-Granularity Filesystem Journaling for CMM-H SSDs | FAST '25 | 2025-02-25 |
DJFS implements per-directory transactions for CXL.ME (CMH) SSDs, using path-based transaction selection, transaction coalescing, and transaction conflict… | ||
| D2FS: Device-Driven Filesystem Garbage Collection | FAST '25 | 2025-02-25 |
Claims that device-side GC can replace filesystem GC and cut overhead by letting the SSD reclaim invalid segments and push LBA remaps to the host. Implements… | ||
| OPIMQ: Order Preserving IO stack for Multi-Queue Block Device | FAST '25 | 2025-02-25 |
OPIMQ enforces storage order across host and multi‑queue devices by tagging each IO with stream and app IDs and by four concrete mechanisms: Epoch Pinning… | ||
| ZMS: Zone Abstraction for Mobile Flash Storage | USENIX ATC 2024 | 2024-07-10 |
An implemented I/O stack for ZNS on a 128 GB UFS phone uses FTFS, device firmware changes and three techniques IOTailor budget-based in-place update… | ||
| CJFS: Concurrent Journaling for Better Scalability | FAST '23: 21st USENIX Conference on File and Storage Technologies | 2023-02-21 |
Extends EXT4 to allow concurrent journal commits by building a patched filesystem (CJFS) that implements Dual Thread Journaling, Multi-version Shadow Paging… | ||
| IPLFS: Log-Structured File System without Garbage Collection | USENIX ATC '22 | 2022-07-11 |
IPLFS implements a log‑structured filesystem that stops doing filesystem‑level garbage collection by setting a very large infinite logical partition (64‑bit… | ||
| ScaleXFS: Getting scalability of XFS back on the ring | FAST '22 | 2022-02-22 |
ScaleXFS is a modified XFS that removes journaling bottlenecks by adding Double Committed Item List, Per-core In-memory Logging, and Strided Space Counting… | ||
| exF2FS: Transaction Support in Log-Structured Filesystem | FAST '22 | 2022-02-22 |
exF2FS is a log‑structured F2FS variant that implements file‑spanning atomic updates by exposing Membership-Oriented Transaction, allowing the app to list… | ||
| O-AFA:Order Preserving All Flash Array for Journaling Filesystem (Work-in-Progress Report) | FAST '22 | 2022-02-22 |
Prototype order-preserving all-flash array firmware that tracks barrier flags per-LBA and groups writes into hash barrier stripes and cache barrier stripes… | ||
| LODIC: Logical Distributed Counting for Scalable File Access | USENIX ATC '21 | 2021-07-14 |
A Linux kernel patch implements a per-process reference counter that embeds small local counters into unused bits of x86 PTEs and locates them by scanning a… | ||
| Work-in-Progress Reports (WiPs) | FAST '21 | 2021-02-23 |
Seven short systems results: an application‑local user‑space library filesystem for persistent memory shares VM pages, omits ACLs, and in single‑process… | ||
| nothing matches | ||