cycle-per-instruction 每指令周期数
clock cycle per instruction 指令执行的时钟周期数
Instruction per cycle 环完成一个指令 ; 每周期执行指令数 ; 循环完成一个指令
The POWER6 chip has two hardware instruction threads that are both capable of issuing multiple instructions per cycle, which causes a boost in performance.
POWER 6处理器有两个能够在每个处理器周期发出多条指令的硬件指令线程，从而改善了性能。
The POWER5 chip has two hardware instruction threads that are both capable of issuing multiple instructions per cycle, which causes a boost in performance.
POWER 5芯片有两个硬件指令线程，在每个周期都能够执行多个指令，这可以提高性能。
By knowing instruction retired per cycle, the system knows how fast the current application is executing inside the processor.
通过知晓每循环的指令重试，系统就知晓了处理器内部正在执行的当前应用程序有多快。
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