发明申请
US20080256345A1 Method and Apparatus for Conserving Power by Throttling Instruction Fetching When a Processor Encounters Low Confidence Branches in an Information Handling System 失效
当处理器在信息处理系统中遇到低置信度时通过调节指令获取来节省电力的方法和装置

Method and Apparatus for Conserving Power by Throttling Instruction Fetching When a Processor Encounters Low Confidence Branches in an Information Handling System
摘要:
An information handling system includes a processor that throttles the instruction fetcher whenever the inaccuracy, or lack of confidence, in branch predictions for branch instructions stored in a branch instruction queue exceeds a predetermined threshold confidence level of inaccuracy or error. In this manner, fetch operations slow down to conserve processor power when it is likely that the processor will mispredict the outcome of branch instructions. Fetch operations return to full speed when it is likely that the processor will correctly predict the outcome of branch instructions.
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