Method for cache management for positioning cache slot
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United States of America Patent
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Nov 28, 2006
Issued Date -
N/A
app pub date -
Jun 24, 2002
filing date -
Feb 21, 2002
priority date (Note) -
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Abstract
Described are techniques used in connection with cache management. Data included in a cache slot is put 'on parole' with a first cache hit while waiting for subsequent cache hits. If a subsequent hit is received to the cache slot, it remains in the cache for a longer time period than a slot having only a first cache hit. The cache may be organized as a plurality of memory banks of cache slots. Each memory bank has an associated control slot that includes groups of extents of tags. Each cache slot has a corresponding tag, and a time stamp. The time stamp of slots in the cache may be adjusted affecting the amount of time a particular portion of data remains in the cache.
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