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Owing to their relatively high random-I/O performance and energy-efficiency, SSDs have been widely deployed in data-intensive computing environments as caching and/or terminal storage devices. The buffer-cache of an SSD plays an essential role in bridging the speed gap between the flash components and the host interface. While the existing SSD buffer management schemes are designed to improve SSD...
Given the multilevel internal SSD parallelism at the different four levels: channel-level, chip-level, die-level, and plane-level, how to exploit these levels of parallelism will directly and significantly impact the performance and endurance of SSDs, which is in turn primarily determined by three internal factors, namely, advanced commands, allocation schemes, and the priority order of exploiting...
In order to maintain the transactional semantics, Transactional Memory (TM) must guarantee isolated read and write operations in each transaction, meaning that it must spend a non-negligible and potentially significant amount of time on keeping track of the transactional modifications in its undo or redo log and switching to the proper version at the end of each transaction. Existing TMs failed to...
Flash Translation Layer (FTL) is one of the most important components of SSD, whose main purpose is to perform logical to physical address translation in a way that is suitable to the unique physical characteristics of the Flash memory technology. The pure page-mapping FTL scheme, arguably the best FTL scheme due to its ability to map any logical page number (LPN) to any physical page number (PPN)...
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