ExLRU: a unified write buffer cache management for flash memory
EMSOFT '11 Proceedings of the ninth ACM international conference on Embedded software
Optimal task allocation on non-volatile memory based hybrid main memory
Proceedings of the 2011 ACM Symposium on Research in Applied Computation
Hybrid nonvolatile disk cache for energy-efficient and high-performance systems
ACM Transactions on Design Automation of Electronic Systems (TODAES) - Special section on adaptive power management for energy and temperature-aware computing systems
DA-RAID-5: a disturb aware data protection technique for NAND flash storage systems
Proceedings of the Conference on Design, Automation and Test in Europe
Cooperating virtual memory and write buffer management for flash-based storage systems
IEEE Transactions on Very Large Scale Integration (VLSI) Systems
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Flash memory is becoming the storage media of choice for mobile devices and embedded systems. The performance of flash memory is impacted by the asymmetric speed of read and write operations, limited number of erase times and the absence of in-place updates. To improve the performance of flash memory based systems, write buffer cache has been equipped in flash memories recently. At the same time, new virtual memory management strategies have been proposed in recent studies that consider the characteristics of flash memory. In this paper, we propose cooperative management schemes for virtual memory and write buffer cache to improve performance of flash memory based systems. Management on virtual memory is designed to exploit the write buffer cache status and management on write buffer cache is designed to cooperate with virtual memory to improve flash memory performance. The experimental results show that the proposed approaches can improve I/O performance by 34.8% on average, and reduce the number of erase and write operations by 44.7% and 28.6% on average.