TridentFS: a hybrid file system for non-volatile RAM, flash memory and magnetic disk

Huang, Ting-Chang; Chang, Da-Wei

doi:10.1002/spe.2299

Cited by 10 publications

(4 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…There is a lot of research built on hybrid PM‐SSD architecture. For example, TridentFS 8 keeps hot data in PM to reduce I/O accesses to slower flash memory, and NVMRA 9 utilizes PM to improve the random write performance of flash memory. However, our work focuses on PM and uses the performance characteristics of DRAM to supplement PM.…”

Section: Background and Motivationmentioning

confidence: 99%

“…With near‐DRAM access latency, high capacity, and disk‐like persistence, PM devices are promising to replace DRAM as the next‐generation main memory 2‐4 . The rapid development of PM technologies has significantly affected the design of today's storage systems 5‐10 . It is crucial for large‐scale storage systems to build high‐performance indexing structures for PM to achieve fast queries.…”

Section: Introductionmentioning

confidence: 99%

“…systems. [5][6][7][8][9][10] It is crucial for large-scale storage systems to build high-performance indexing structures for PM to achieve fast queries.…”

mentioning

confidence: 99%

See 2 more Smart Citations

SPHT: A scalable and high‐performance hashing scheme for persistent memory

et al. 2022

View full text Add to dashboard Cite

The evolution of persistent memory (PM) has significantly affected the design of today's indexing structures. Hashing-based structures are widely used in storage systems to achieve fast query responses. Recently, several concurrent and failure-atomic hashing schemes for PM have been proposed to improve the scalability. However, these works still suffer from limited scalability, especially under write-intensive workloads or at a high number of threads. Our empirical study concludes three issues harm the scalability of PM hashing schemes: the NUMA effects, the resizing operations, and the inter-thread interference overhead in PM. Based on the above scalability issues, we present SPHT, a scalable and persistent hashing scheme for hybrid DRAM-PM memory. To eliminate the NUMA effects, SPHT maintains a hash subtable for every NUMA node and stores the key-value items in the designated nodes. By doing so, all operations can be executed in the local memory without cross-node communication. The hash subtable consists of two components: the search layer in DRAM for fast accesses and the data layer in PM for efficient persistence. The data layer is organized in a log-structured way and its log chunks own separate PM space, thus avoiding the resizing operations in PM. Meanwhile, the compacted log structure also supports batching multiple small items, which effectively reduces the persistence overhead. Furthermore, to maximize concurrency, we assign threads to different partitions in the data layer to reduce the inter-thread interference overhead. On Intel Optane DCPMM, our evaluations show that SPHT scales well and achieves up to 2.7× higher performance than state-of-the-art PM hashing schemes under YCSB workloads. K E Y W O R D Sconcurrent index structure, dynamic hashing structure, high scalability, persistent memory INTRODUCTIONRecently, the release of Intel Optane DC persistent memory brings persistent memory (PM) to reality. 1 With near-DRAM access latency, high capacity, and disk-like persistence, PM devices are promising to replace DRAM as the next-generation main memory. [2][3][4] The rapid development of PM technologies has significantly affected the design of today's storage

show abstract

Section: Background and Motivationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

SPHT: A scalable and high‐performance hashing scheme for persistent memory

et al. 2022

View full text Add to dashboard Cite

show abstract

“…In the early stage, NVM is deployed as a cache to the HDD devices [39,116,117]. In [117] and [118], the emerging NVM and NAND flash memory are both employed as the cache for HDD to improve the energy efficiency and overall system performance.…”

Section: Hybrid Structures Using Various Nvmsmentioning

confidence: 99%

Hybrid system analysis and design for scale-out storage environments

Niu¹

View full text Add to dashboard Cite

First of all, I would like to express my great appreciation to my supervisor, Prof. Lihua Xie, for his continuous guidance, encouragement and support throughout my research efforts towards this dissertation. Without his inspiration, deep insight, and invaluable advice, this thesis would not have been possible. I have benefited tremendously from his extensive knowledge, professional experience, and strong commitment towards the excellence of research.

show abstract