| Title | ScalaRAID: Optimizing Linux Software RAID System for Next-Generation Storage |
| Authors | Yi, Shushu Yang, Yanning Tang, Yunxiao Zhou, Zixuan Li, Junzhe Yue, Chen Jung, Myoungsoo Zhang, Jie |
| Affiliation | Peking Univ, Comp Hardware & Syst Evolut Lab, Beijing, Peoples R China Nanjing Univ, Comp Hardware & Syst Evolut Lab, Nanjing, Peoples R China Beijing Univ Posts & Telecommun, Comp Hardware & Syst Evolut Lab, Beijing, Peoples R China Korea Adv Inst Sci & Technol, Comp Hardware & Syst Evolut Lab, Daejeon, South Korea |
| Keywords | HIGH-PERFORMANCE FLASH |
| Issue Date | 2022 |
| Publisher | PROCEEDINGS OF THE 2022 14TH ACM WORKSHOP ON HOT TOPICS IN STORAGE AND FILE SYSTEMS, HOTSTORAGE 2022 |
| Abstract | RAID has been widely adopted to enhance the performance, capacity, and reliability of the existing storage systems. However, we observe that the Linux software RAID (mdraid) suffers from its poor implementation of the lock mechanism. To address this, we propose ScalaRAID, which refines the role domain of locks and designs a new data structure to prevent different threads from preempting the RAID resources. By doing so, ScalaRAID can maximize the thread-level parallelism and reduce the time consumption of I/O request handling. Our evaluation results reveal that ScalaRAID can improve throughput by 89.4% while decreasing 99.99(th) percentile latency by 85.4% compared to mdraid. |
| URI | http://hdl.handle.net/20.500.11897/692411 |
| ISBN | 978-1-4503-9399-7 |
| DOI | 10.1145/3538643.3539740 |
| Indexed | CPCI-S(ISTP) |
| Appears in Collections: | 待认领 |
