发明名称 |
Method and Apparatus for Inhibiting Fetch Throttling When a Processor Encounters a Low Confidence Branch Instruction in an Information Handling System |
摘要 |
An information handling system includes a processor that throttles an instruction fetcher whenever a group of instructions in a branch instruction queue together exhibits a confidence in the accuracy of branch predictions of branch instructions therein that is less than a first predetermined threshold confidence threshold. In one embodiment, the processor includes a fetch throttle controller that inhibits fetch throttling by the instruction fetcher when confidence in the accuracy of a branch prediction for a particular currently issued branch instruction exhibits less than a second predetermined threshold confidence threshold.
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申请公布号 |
US2009150657(A1) |
申请公布日期 |
2009.06.11 |
申请号 |
US20070951112 |
申请日期 |
2007.12.05 |
申请人 |
IBM CORPORATION |
发明人 |
GSCHWIND MICHAEL KARL;PHILHOWER ROBERT ALAN;YEUNG RAYMOND CHEUNG |
分类号 |
G06F9/38 |
主分类号 |
G06F9/38 |
代理机构 |
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地址 |
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