Skip to main content

TSYS School's Yi Zhou Investigates Near-Data Processing Approach to Reduce Performance Bottlenecks

LSM tree-based key-value stores face significant I/O bandwidth consumption and performance bottlenecks due to frequent data rewrites and migrations during compaction. To address this issue, near-data processing technology has emerged as a promising solution and is gaining increasing attention. Near-data processing reduces the data transfer distance between storage and processing resources by placing computational resources closer to storage devices or integrating them into memory, thereby effectively alleviating performance bottlenecks. However, existing multi-near-data processing (NDP) key-value stores still face synchronization problems, leading to long wait times and underutilization of resources. To address these issues, TSYS School computer scientist Yi Zhou and his colleagues from Anhui University, Zhongguancun Laboratory and Auburn University propose an asynchronous parallel compaction for multi-NDP-enabled key-value store named A+Store. In A+Store, to optimize data layout, they implement an MLSM-tree on each NDP device, an asynchronous execution queue for dynamic task management, and an independent metadata management method. This asynchronous mechanism allows each NDP device to update its metadata immediately after completing a compaction task rather than waiting for other devices, thereby eliminating synchronization waiting time among NDP devices. Additionally, as each NDP stores SSTables within specific key ranges, the device can perform sub-compaction tasks in parallel according to its key range, significantly enhancing the execution speed of tasks within each NDP device. This approach can improve the system’s parallel processing capability and resource utilization, addressing the bottlenecks in existing multi-NDP key-value stores in applications with the requirements of large-scale data processing and low latency. To evaluate the performance of A+Store, the study, which appears in the latest issue of the Journal of Systems Architecture, compares A+Store to state-of-the-art key-value stores. Zhou and his colleagues also develop a tested toolkit using the real-world dataset OpenAlex, and study the performance of A+Store under realistic workloads. Experimental results show that A+Store demonstrates superior performance across all tests. 
Labels:

Comments

Post a Comment

Popular posts from this blog

ABDC Releases 2025 Journal Review, Now Ranks Journal Edited by Phil Bryant

The long-awaited journal review being conducted by the Australian Business Deans Council (ABDC) has been released and there are a number of news items that relate to faculty in the Turner College. One of these is the ABDC's decision to now include  Compensation and Benefits Review in its journal rankings. This is big news for the Turner College as its editor, Phil Bryant , is a professor of management in the Turner College. The ABDC is proposing that the journal enter its system for the first time as a C-rated journal. Acting Turner College Dean Tesa Leonce sits on the journal's editorial board, while Turner College management professor Mark James has guest-edited an issue of the journal. Published by SAGE,  Compensation & Benefits Review is the leading journal for senior executives and professionals who design, implement, evaluate and communicate compensation and benefits policies and programs. The journal supports compensation and benefits specialists and academic ex...
Post a Comment
Read more

New Butler Center Report Identifies Employment Gaps in the Columbus Area

Officials in the Turner College's Butler Center for Research and Economic Development recently put the finishing touches on an extensive report on trends in educational programs and occupations in the Columbus area. The report also includes data on business and technology trends.  According to Fady Mansour , Director of the Butler Center, there are several key takeaways from the report regarding 10 occupational gaps that currently exist in the Columbus area. First,  software development occupation exhibits the biggest labor shortage, with the report adding that the TSYS School has a bachelor's degree program in information technology along with a new AI track for the bachelor's degree in computer science, both of which can qualify students for this occupation. Other educational programs are in demand, such as computer programming and cloud computing. Second, there is a gap of 30 employees per year in general and operations management. This gap could be addressed by the Turn...
Post a Comment
Read more

TSYS School, Jianhua Yang, Lixin Wang Each among Top Five in the World

New research by computer scientists in the School of Information Technology at Universiti Utara Malaysia that ranks institutions and individuals on the basis of scholarship in the area of stepping-stone attacks heaps praise on the Turner College’s TSYS School of Computer Science and two of its faculty – Jianhua Yang and Lixin Wang .   The article, published in the April 2023 issue of the International Journal of Research in Engineering and Science , provides a bibliometric analysis of both publication and citation data from 2000 to September of 2022 related to research on stepping-stone intrusion.   Among several results, it reports that Columbus State University ranks second worldwide, trailing only the University of Houston, using total publications on the subject as the basis of comparison.   A number of other U.S. institutions appear in the top 10, including third-ranked North Carolina State University, fourth-ranked University of Illinois, sixth-ranked Iowa State U...
Post a Comment
Read more