System for scheduling programming units to a resource based on status variables indicating a lock or lock-wait state thereof
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United States of America Patent
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Jun 4, 1996
Grant Date -
N/A
app pub date -
Jan 29, 1993
filing date -
Jan 30, 1992
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A computer system comprising a CPU and a scheduler. The CPU sets a predetermined value in the status variable corresponding to a thread when the thread starts waiting for a resource which it shares with other threads. The scheduler refers to the status variable, selects, with priority, a thread other than the thread waiting for the shared resource, and allocates the CPU to the thread thus selected.
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