International Business Machines Corporation

Peter B Yocum

Elpida Tzortzatos

Danny R Sutherland

A system and method for eliminating excessive spin conditions on systems implementing a LRU algorithm. This is achieved by limiting the amount of time a LRU task is allowed to run in any one invocation. If this time limit is exceeded before the LRU task has completed its processing, the LRU task will reschedule itself to run after a short time interval, record which frames have been processed so far, release its serialization resources, and exit to open a window of enablement. During this window, other processes that were spinning for the serialization resources can have a chance to run. When the LRU task runs again it will re-obtain the serialization resources and continue processing frames that were not previously processed. The above process will be repeated until all the appropriate frames in the system are in LRU order.

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Lagrangeville, NY, United States of America

Peter B Yocum