IBOI:一种复杂性有效的基于指令块的乱序发射策略  

IBOI:an Complexity-effective Instruction-block-based Out-of-order Issue Strategy

作　　者：过锋[1] 李宏亮[1] 谢向辉[1] 黄永勤[1] 

机构地区：[1]江南计算技术研究所,江苏无锡214083

出　　处：《小型微型计算机系统》2011年第7期1461-1464,共4页Journal of Chinese Computer Systems

基　　金：国家核高基项目(2009ZX01028-001-008)资助

摘　　要：顺序流水线结构由于逻辑简单,复杂性小,被广泛应用于嵌入式系统,以及片上多核和众核处理器.但是顺序流水线的指令发射速率受制于访存等长延迟事件,性能往往很低.本文在顺序流水线的基础上提出了一种基于指令块的乱序发射策略,只以少量的复杂性获得较好的性能功耗比.实验结果表明,本文提出的乱序发射策略相比顺序发射是一种复杂性有效的改进.In-order pipeline structure is used in embedded system, multicore and manycore processors, because it has simple logic and low complexity. However, the instruction issue rate is constrained by the long latency events, for example memory access, so it＇s performance is often low. This paper gives an instruction-block-based out-of-order issue strategy on the base of in-order pipeline. This proposed issue strategy uses only small complexity to get the better performance. The experiments show that this proposed issue strategy is a complexity-effective modify compared to the in-order issue strategy.

关 键 词：顺序流水线 复杂性有效的 指令发射策略 

分 类 号：TP332[自动化与计算机技术—计算机系统结构]