A High-Performance and Scalable Userspace Log-Structured File System for Modern SSDs
文献类型：期刊论文
| 作者 | Jia, Wenqing1,2; Jiang, Dejun1,2,3; Xiong, Jin1,2 |
| 刊名 | ACM TRANSACTIONS ON STORAGE
 |
| 出版日期 | 2025-11-01 |
| 卷号 | 21期号:4页码:41 |
| 关键词 | SSD userspace file system scalability |
| ISSN号 | 1553-3077 |
| DOI | 10.1145/3728645 |
| 英文摘要 | We present AuGEFS, a scalable userspace log-structured file system for modern SSDs. AuGEFS re-architects the file system stack to address three critical challenges: inefficient control plane, limited metadata scalability, and underutilized device bandwidth. First, we propose a shared and protected address space within the userspace of accessing applications to run AuGEFS, which enables the high-performance data plane and efficient control plane. Second, we design a scalable LSM-tree based key-value store called METADB to organize small-sized metadata in AuGEFS. To improve the metadata scalability, METADB employs parallel request processing to reduce thread synchronization overhead and fine-grained parallel write-ahead log to eliminate false sharing in metadata persistence. Finally, AuGEFS distributes files into different domains. To reduce contention, we maintain space management metadata for each domain independently, which helps scale data performance and improve the device IO utilization. Moreover, AuGEFS designs an asynchronous IO stack for fsync to reduce the latency of synchronous writes. The evaluation results show that AuGEFS significantly improves both metadata scalability and data scalability. |
| WOS研究方向 | Computer Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001631767000006 |
| 出版者 | ASSOC COMPUTING MACHINERY |
| 源URL | [http://119.78.100.204/handle/2XEOYT63/42945]  |
| 专题 | 中国科学院计算技术研究所 |
| 通讯作者 | Jia, Wenqing |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Comp Technol, State Key Lab Processors, Beijing, Peoples R China 3.Zhongguancun Lab, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jia, Wenqing,Jiang, Dejun,Xiong, Jin. A High-Performance and Scalable Userspace Log-Structured File System for Modern SSDs[J]. ACM TRANSACTIONS ON STORAGE,2025,21(4):41. |
| APA | Jia, Wenqing,Jiang, Dejun,&Xiong, Jin.(2025).A High-Performance and Scalable Userspace Log-Structured File System for Modern SSDs.ACM TRANSACTIONS ON STORAGE,21(4),41. |
| MLA | Jia, Wenqing,et al."A High-Performance and Scalable Userspace Log-Structured File System for Modern SSDs".ACM TRANSACTIONS ON STORAGE 21.4(2025):41. |
入库方式： OAI收割
来源：计算技术研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。