System for locking data in a shared cache
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United States of America Patent
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-
Aug 31, 1999
Grant Date -
N/A
app pub date -
May 30, 1997
filing date -
May 30, 1997
priority date (Note) -
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status (Latency Note)
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Abstract
In a multi-threaded computing system, a locking system is utilized to cooperatively manage a shared cache between a plurality of user threads and a paging manager thread. To manage the locks, the paging manager maintains pointers between a process memory space assigned to each user thread, a global system data structure assigned to each user thread, and a page control block for each locked page in memory. These pointers and additional flags identify locked pages and their owners, and facilitates cleanup of stale locks.
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