| 摘要 |
Statistical wear leveling is described that may be particularly useful for non-volatile system memory. In one embodiment, the invention includes a wear level move state machine to select an active block based on a wear criteria, to move the contents of the selected active block to a block from a free block list, and to move the selected active block to an unused block list, a free block list expansion state machine to take a block from a target free block list, to move the contents of the block to a block from the unused block list, and to move the block taken from the target block list to a free block list, and a target free block generation state machine to select blocks from the unused block list and to move the selected blocks to the target free block list.
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