Electrical computers and digital data processing systems: input/ – Access locking
Reexamination Certificate
2006-05-16
2006-05-16
Perveen, Rehana (Department: 2111)
Electrical computers and digital data processing systems: input/
Access locking
C710S240000, C710S104000, C709S241000, C709S241000, C711S150000
Reexamination Certificate
active
07047337
ABSTRACT:
An apparatus, program product and method to manage access to a shared resource by a plurality of processes in a multithreaded computer via a collection of atomic operations that track both the order in which requests that use a shared resource are received, and the order in which processing of such requests are completed after they are received. Dispatching of requests is effectively deferred until processing of all non-dispatched requests that were received earlier than a most recently completed request has been completed. In many instances, completion of processing of requests can be performed non-atomically, thus reducing contention issues with respect to the shared resource. Furthermore, dispatching of requests may be batched to reduce the overhead associated with individual dispatch operations.
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Armstrong Troy David
Lucke Kyle Alan
Perveen Rehana
Phan Raymond N
Wood Herron & Evans LLP
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