影响流水线效率的因素
• 影响指令流水线性能的因素
• 运行时间 = 程序指令数 * CPI (每条指令时钟周期数)
• Pipeline CPI=Ideal pipeline CPI + Structural stalls + RAW stalls + WAR stalls + WAW
stalls + Control stalls
Ideal CPI and data stalls
Ideal CPI and data stalls
All data and control stalls
RAW stall involving memory
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