发明授权
- 专利标题: Method and apparatus for prioritized transaction queuing
- 专利标题(中): 优先事务排队的方法和装置
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申请号: US11023137申请日: 2004-12-27
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公开(公告)号: US07631132B1公开(公告)日: 2009-12-08
- 发明人: Paul S. Neuman
- 申请人: Paul S. Neuman
- 申请人地址: US PA Blue Bell
- 专利权人: Unisys Corporation
- 当前专利权人: Unisys Corporation
- 当前专利权人地址: US PA Blue Bell
- 代理机构: Hollingsworth and Funk LLC
- 代理商 Robert P. Marley
- 主分类号: G06F12/00
- IPC分类号: G06F12/00 ; G06F13/362 ; G06F13/00 ; G06F9/44 ; G06F11/00
摘要:
A first queue receives transactions from a transaction source in first-in/first-out (FIFO) order regardless of priority. A second queue receives lower priority transactions from the first queue as compared to the higher priority transactions remaining in the first queue. A priority check module controls the forwarding schedule of transactions from the first and second queues in accordance with the associated priorities of the stored transactions. Should an address conflict arise between transactions in the first and second queues, the priority check module stalls forwarding from the first queue while promoting forwarding from the second queue during the conflict condition.