The TSYS School’s Yi Zhou and colleagues from Jinan University and Auburn University examine the performance of storage systems in their new research project. As they explain, garbage collection running in the controller of 3D NAND flash-based solid-state disks plays a critical role in that performance, and solid-state disk manufacturers have developed various garbage collection solutions based on internal data movement to mitigate the impacts of garbage collection on request latency. According to Zhou, “Due to the circuit characteristics of flash memory, existing internal data movement-based garbage collection strategies require that odd pages must be migrated to odd pages, and even pages to even pages. When migrating two consecutive pages with the same parity, the free page between the two migrated pages will be wasted after the migration is complete.” As the study explains, this issue inevitably deteriorates the storage space utilization of flash memory, thereby degrading the overall performance of 3D NAND flash-based solid-state disks. Zhou and his co-authors propose a parity-check garbage collection scheme to revamp solid-state disk performance by alleviating page waste during garbage collection. Their investigation, which is set to appear in a future issue of IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, resulted in development of a parity-check unit to facilitate checking the parity of migrated valid pages and destination pages. Testing reveals that their solution dynamically adjusts the migration order of valid pages during the course of garbage collection and fundamentally averts page waste caused by the page parity restriction. More specifically, their unit curtails the number of wasted pages by up to 91.4%, cuts back the number of garbage collection counts by up to 52.2%, and slashes average write response time by up to 77.8%.
CSU Head Women's Soccer Coach Jay Entlich recently released a list of CSU faculty who have been chosen by a player as a member of the CSU faculty who has impacted the player in a positive way along their journey at CSU. Four Turner College faculty were included on the list, along with the player who nominated each. Management professor Phil Bryant was named by Sophia Leal , a freshman midfielder from Oxford, Georgia. Sophia attended Eastside High School and was a two-time all-region selection during her high school career. Through the first 10 games of 2024, she has scored one goal and recorded three assists. Next, management professor John Finley was named by Lizz Forshaw , a graduate student forward from Stockton, England. Lizz, who attended IMG Academy in south Florida, has scored four goals and recorded four assists this season. During her senior year in 2023, she scored three goals and recorded two assists. As a junior in 2022, Lizz scored three goals ...
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