Memory Components White Papers
Efficient Runahead Execution: Power-Efficient Memory Latency Tolerance
Overview Runahead execution improves memory latency tolerance without significantly increasing processor complexity. Unfortunately, a runahead execution processor executes significantly more instructions than a conventional processor, sometimes without providing any performance benefit, which makes it inefficient. This paper identifies the causes of inefficiency in runahead execution and proposes simple -yet effective-techniques to make a runahead processor more efficient, thereby reducing its energy consumption. The proposed efficiency techniques reduce the extra instructions executed in a runahead processor from 26.5% to 6.2% without significantly affecting the 22%performance improvement provided by runahead execution.
| Publisher | University of Texas | File Format | |
|---|---|---|---|
| Date Published | May 2007 | Downloads | 1 |
| Format | White Papers | ||
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