Method and apparatus for improving parallel marking garbage...

Details Method and apparatus for improving parallel marking garbage... Method and apparatus for improving parallel marking garbage...

2009-03-31

2011-10-18

Bragdon, Reginald (Department: 2189)

Electrical computers and digital processing systems: memory

Storage accessing and control

Memory configuring

C707S813000, C707S815000, C711S132000

Reexamination Certificate

active

08041918

ABSTRACT:
A method for performing garbage collection involves obtaining a first reference bitmap including a block address and a set of mark bits, obtaining a first reference, identifying a mark bit of the set of mark bits based on the first reference, comparing an address associated with the mark bit with the first reference to generate a comparison, selecting an existing word from a global bit map based on the block address and the comparison, calculating a new word based on the set of mark bits and the existing word, replacing the existing word in the global bit map with the new word, and reclaiming a block of memory for reuse based on the global bit map after replacing the existing word.

REFERENCES:
patent: 7197521 (2007-03-01), Subramoney et al.
patent: 2001/0039609 (2001-11-01), Houldsworth

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