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Priority based bus arbiters avoiding deadlock and starvation on buses that support retrying of transactions
Priority based bus arbiters avoiding deadlock and starvation on buses that support retrying of transactions
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机译:基于优先级的总线仲裁程序避免了支持事务重试的总线上的死锁和饥饿
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摘要
A scheduler provided according to an aspect of the present invention provides higher priority for data units in a low priority queue upon occurrence of a starvation condition, and to packets in a high priority queue otherwise. The scheduler permits retransmission of a data unit in the lower priority queue when in the starvation condition, but clears the starvation condition when the data unit is retransmitted a pre-specified number of times. As a result, the data units in the higher priority queue would continue to be processed, thereby avoiding a deadlock at least in certain situations.
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