New Study by Zhou Addresses Garbage Collection Issues in NAND Flash-Based Solid State Devices

A new study by the TSYS School’s Yi Zhou and colleagues from both Jinan University (China) and Auburn University proposes a new scheme to boost the performance of NAND flash-based solid state devices. As they explain, garbage collection (GC) plays a pivotal role in the performance of 3D NAND flash memory, where “copy back,” which is an operation where data are read from one location and copied to another location, has been widely used to accelerate valid page migration during garbage collection. Unfortunately, copy back is constrained by a parity symmetry issue such that data read from an odd/even page must be written to an odd/even page. After migrating two odd/even consecutive pages, a free page between the two migrated pages will be wasted. These wasted pages noticeably lower free space on flash memory and cause extra garbage collections, thereby degrading solid state device performance. To address this problem, the study by Zhou and colleagues, which is set to appear in a forthcoming issue of ACM Transactions on Storage, proposes a page-state-aware cache scheme called PSA-Cache, which prevents page waste by breaking odd/even consecutive pages in subsequent garbage collections. The study quantitatively evaluates the performance of PSA-Cache in terms of the number of wasted pages, the number of garbage collections, and response time by comparing it to two state-of-art schemes, GCaR and TTflash. The experiments reveal that PSA-Cache outperforms the existing schemes. More specifically, PSA-Cache curtails the number of wasted pages that result from implementation of GCaR and TTflash by 25.7% and 62.1%, respectively. Moreover, PSA-Cache cuts back the number of garbage collection counts by as much as 78.7%, while it reduces the average write response time by up to 85.4%.

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Grant Hits Ground Running as New Turner College Marketing Intern

The Turner College's new marketing intern Lizzy Grant , a senior marketing major from Newnan who previously attended Gordon State College, where she played varsity soccer, and is scheduled to graduate from the Turner College in May of 2024, has hit the ground running in her new position. She recently played a large role in the creation of a video tour of the Synovus Center, the main campus home of the Turner College. The video helps to guide new students on where to go in the building and who they can talk to if they help. The video showcases the Student Services Center, the main lobby, and more. The video is played as part of a loop on video screens placed throughout the Synovus Center. Lizzy's list of activities at CSU is impressive. She is the Treasurer of the Turner College's Marketing Club, the President of Marketing for the Turner College's chapter of the Financial Management Association, and an Ambassador for the Turner College. She is also the Treasurer of her s

Jung Exploring Influence of Confucianism on Luxury Brand Performance in China, Japan and South Korea

In a recent chat with Turner Business , Turner College professor of marketing Sungwoo Jung made the point that luxury brands are gaining the degree of influence in many developing countries that they enjoy now in developed countries. He has been pondering this issue as part of his international marketing research program, which typically focuses on advertising, pioneering advantages and multi-cultural analysis. Currently, Jung is concentrating his energies on a cross-cultural analysis of brand equity that highlights luxury brands’ performance. His research finds that China, Japan and South Korea have each seen an increase in market share for luxury brands in recent years. As Jung explained to Turner Business , “These three countries share a common philosophical background – Confucianism.” With that point in mind, Jung and his coauthors are currently engaged in an investigation of how Confucianism influences consumer behavior in these three Asian countries, and how that behavior im

Turner College Grad Publishes Academic Study on Corporate Culture and Strategy

Former Turner College student Tamara Todorova , now an associate professor of economics at American University in Bulgaria (AUB), recently published a study on corporate culture and strategy. Todorova earned an MBA from the Turner College in 1996 and then went on to earn a doctorate in international economics from the University of Economics - Varna in 2001. She has been on the faculty at AUB since August of 2000. Todorova's study, which appears in the current issue of the International Journal of Business Performance Management , investigates how corporate culture helps to economize on the transaction costs of internal organization. As she explains, the dimensions of corporate culture that assist in this task include increasing trust and reducing intrafirm opportunism. Todorova's study demonstrates that setting common goals and a common direction reduces the sizeable costs of internal organization. Tamara's prior research appears in Economics of Transition , International

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