System for locking data in a shared cache

Details System for locking data in a shared cache System for locking data in a shared cache

1997-05-30

1999-08-31

Chan, Eddie P.

Electrical computers and digital processing systems: memory

Storage accessing and control

Shared memory area

711130, G06F 1214

Patent

active

059467118

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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