System and method for selecting victim memory block for garbage collection
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United States of America Patent
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May 30, 2017
Issued Date -
N/A
app pub date -
Jun 23, 2015
filing date -
Mar 28, 2015
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Abstract
Embodiments of present disclosure disclose method and system for selecting victim memory block for garbage collection. A memory block having minimum valid unit count is identified. Wear count bit of memory block to be null wear count or non-null wear count is determined. Memory block is selected as victim memory block for garbage collection upon determining memory block having null wear count. A plurality of memory blocks are divided into first set of memory blocks and second set of memory blocks upon determining memory block having non-null wear count. Minimum valid unit count and wear count bit are identified for each memory block in each set. Division is iterated until a first target memory block having minimum valid unit count and null wear count from one of first set of memory blocks and second set of memory blocks is identified. Final target memory block is selected as victim memory block for garbage collection.
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