发明申请
US20070186080A1 Mechanism to minimize unscheduled D-cache miss pipeline stalls
有权
最小化非计划D缓存未命中管道失速的机制
- 专利标题: Mechanism to minimize unscheduled D-cache miss pipeline stalls
- 专利标题(中): 最小化非计划D缓存未命中管道失速的机制
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申请号: US11351247申请日: 2006-02-09
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公开(公告)号: US20070186080A1公开(公告)日: 2007-08-09
- 发明人: David Luick
- 申请人: David Luick
- 申请人地址: US NY Armonk
- 专利权人: International Business Machines Corporation
- 当前专利权人: International Business Machines Corporation
- 当前专利权人地址: US NY Armonk
- 主分类号: G06F9/30
- IPC分类号: G06F9/30
摘要:
A method and apparatus for minimizing unscheduled D-cache miss pipeline stalls is provided. In one embodiment, execution of an instruction in a processor is scheduled. The processor may have at least one cascaded delayed execution pipeline unit having two or more execution pipelines that execute instructions in a common issue group in a delayed manner relative to each other. The method includes receiving an issue group of instructions, determining if a first instruction in the issue group is a load instruction, and if so, scheduling the first instruction to be executed in a pipeline in which execution is not delayed with respect to another pipeline in the cascaded delayed execution pipeline unit.
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