Runahead execution: An effective alternative to large instruction windows

被引：30
作者：
Mutlu, O [1 ]
Stark, J [1 ]
Wilkerson, C [1 ]
Patt, YN [1 ]
机构：
[1] Univ Texas, Austin, TX 78712 USA
来源：
IEEE MICRO | 2003年 / 23卷 / 06期
关键词：
D O I：
10.1109/MM.2003.1261383
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
AN INSTRUCTION WINDOW THAT CAN TOLERATE LATENCIES TO DRAM MEMORY IS PROHIBITIVELY COMPLEX AND POWER HUNGRY. TO AVOID HAVING TO BUILD SUCH LARGE WINDOWS, RUNAHEAD EXECUTION USES OTHERWISE-IDLE CLOCK CYCLES TO ACHIEVE AN AVERAGE 22 PERCENT PERFORMANCE IMPROVEMENT FOR PROCESSORS WITH INSTRUCTION WINDOWS OF CONTEMPORARY SIZES. THIS TECHNIQUE INCURS ONLY A SMALL HARDWARE COST AND DOES NOT SIGNIFICANTLY INCREASE THE PROCESSOR'S COMPLEXITY.
引用
收藏
页码：20 / 25
页数：6
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