Cache mechanism for managing transient data
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United States of America Patent
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N/A
Issued Date -
Feb 5, 2009
app pub date -
Aug 4, 2007
filing date -
Aug 4, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A system and method are provided for managing transient data in cache memory. The method accepts a segment of data and stores the segment in a cache line. In response to accepting a read-invalidate command for the cache line, the segment is both read from the cache line and the cache line made invalid. If, prior to accepting the read-invalidate command, the segment in the cache line is modified, the modified segment is not stored in a backup storage memory as a result of subsequently accepting the read-invalidate command. In one aspect, the segment is initially identified as transient data, and the read-invalidate command is used in response to identifying the segment as transient data.
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