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System and method utilizing a cache free list and first and second page caches managed as a single cache in an exclusive manner
System and method utilizing a cache free list and first and second page caches managed as a single cache in an exclusive manner
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机译:利用以独占方式管理为单个缓存的空闲缓存列表以及第一页和第二页缓存的系统和方法
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摘要
A method and systems for caching utilize first and second caches, which may include a dynamic random-access memory (DRAM) cache and a next generation non-volatile memory (NGNVM) cache such as NAND flash memory. The methods and systems may be used for memory caching and/or page caching. The second caches are managed in an exclusive fashion, resulting in an aggregate cache having a storage capacity generally equal to the sum of individual cache storage capacities. Cache free lists may be associated with the first and second page caches and pages within a cache free list may be mapped back to an associated cache without accessing a backing store. Data can be migrated between the first cache and the second caches based upon access heuristics and application hints.
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