International Business Machines Corporation

Andrew R Malota

Ahmed Gheith

Aditya Kumar

Ronald Lynn Rockhold

Tracy James Bashore

Andrew James Declercq

A simulation technique that handles accesses to a frame of memory via a proxy object provides improved throughput in simulation environments. The proxy object, if present, processes the access at a head of a linked list of frames. If a check frame is not inserted in the list, the memory frame handles the request directly, but if a check frame is inserted, then the check operation is performed. The check frame can be a synchronization frame that blocks access to a memory frame while the check frame is present, or the check frame may be a breakpoint, watch or exception frame that calls a suitable handling routine. Additional check frames may be chained between the interface and the memory subsystem to handle synchronization, breakpoints, memory watches or other accesses to or information gathering associated with the memory frame.

Memory frame proxy architecture for synchronization and check handling in a simulator

Simulation method using memory frame proxy architecture for synchronization and check handling

A memory buffer with a set of one or more structures is created by a process of a first software program. The first memory buffer comprises a predetermined amount of memory. It is determined that a structure of the set of one or more structures has been or will be consumed by a second software program that supports the first software program. The consumption of the structure of the set of one or more structures indicates that memory associated with the structure of the set of one or more structures is being reclaimed. In response to the determination that the structure of the set of one or more structures has been or will be consumed, data is written from a first location to a second location. The first location is in memory allocated to the first software program and the second location is indicated for data storage.

Memory management with priority-based memory reclamation

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Austin, TX, United States of America

Andrew R Malota