Method of allocating physical memory space having pinned and non-pinned regions
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United States of America Patent
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Jul 26, 2005
Grant Date -
Dec 26, 2002
app pub date -
Jun 21, 2001
filing date -
Jun 21, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In a physical memory space, a pinned memory region is defined at one end of the space and a non-pinned region is defined at the other end of the space. A free region is between the pinned and non-pinned regions. Requests for pinned memory allocations are satisfied either by using holes in the pinned region or by appending the requested block to the end of the pinned region in the free region. The free region may be widened to accommodate pinned memory allocations. Requests for non-pinned memory allocations are satisfied by holes in the non-pinned region, by being appended to the non-pinned region in the free region or by filling holes in the pinned region, in that order.
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