Affinity, locality, and load balancing in scheduling user program-level threads for execution by a computer system
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United States of America Patent
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Sep 11, 2001
Grant Date -
N/A
app pub date -
Aug 25, 1998
filing date -
Aug 25, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A technique for dynamically exploiting affinity, locality, and load balancing in scheduling the execution of multi-threaded user programs in a multi-processor computer system. Affinity, locality, and load balancing characteristics are specified at thread creation time and can be dynamically changed during thread execution, either by the user program itself or by any other process or entity with sufficient privileges and information. A central schedule queue and one or more per-processor local schedule queues are used to schedule the threads based on the dynamically changing affinity, locality, and load balancing characteristics.
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