WEAR LEVELING WITH MARCHING STRATEGY
First Claim
1. A method for managing utilization of a memory including a physical address space, comprising:
- mapping logical addresses of data objects to locations within the physical address space, wherein a plurality of address segments in the physical address space forms an active window;
allowing writes of data objects having logical addresses mapped to locations within the plurality of address segments in the active window; and
upon detection of a request to write a data object having a logical address mapped to a location outside the active window, updating the mapping so that the logical address maps to a selected location within the active window.
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Accused Products
Abstract
A method for managing utilization of a memory including a physical address space comprises mapping logical addresses of data objects to locations within the physical address space, and defining a plurality of address segments in the space as an active window. The method comprises allowing writes of data objects having logical addresses mapped to locations within the plurality of address segments in the active window. The method comprises, upon detection of a request to write a data object having a logical address mapped to a location outside the active window, updating the mapping so that the logical address maps to a selected location within the active window, and then allowing the write to the selected location. The method comprises maintaining access data indicating utilization of the plurality of address segments in the active window, and adding and removing address segments from the active window in response to the access data.
25 Citations
20 Claims
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1. A method for managing utilization of a memory including a physical address space, comprising:
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mapping logical addresses of data objects to locations within the physical address space, wherein a plurality of address segments in the physical address space forms an active window; allowing writes of data objects having logical addresses mapped to locations within the plurality of address segments in the active window; and upon detection of a request to write a data object having a logical address mapped to a location outside the active window, updating the mapping so that the logical address maps to a selected location within the active window. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus, comprising:
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a memory including a physical address space; and a memory controller coupled to the memory, including logic to map logical addresses of data objects to locations within the physical address space;
logic to define a plurality of address segments in the physical address space as an active window;
logic to allow writes of data objects having logical addresses mapped to locations within the plurality of address segments in the active window; and
logic, upon detection of a request to write a data object having a logical address mapped to a location outside the active window, to update mapping so that the logical address maps to a selected location within the active window. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification