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| 題名: | Branch Prediction using Both Global and Local branch History Information |
| 作者: | Chang, Meng-chou;Chou, Yu-wen |
| 貢獻者: | 電子工程學系 |
| 日期: | 2002-03
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| 上傳時間: | 2012-05-22T06:45:22Z
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| 出版者: | IEEE |
| 摘要: | As the pipeline depth and issue rate of high-performance superscalar processors increase, the importance of an excellent branch predictor becomes more crucial to delivering the potential performance of a wide-issue, deep pipelined processor. Conventional two-level branch predictors predict the outcome of a branch either based on the local branch history information, comprising the previous outcomes of a single branch, or based on the global branch history information, comprising the previous outcomes of all branches. The authors propose a new branch prediction scheme, called LGshare, which employs both the global and local branch history information simultaneously to improve the branch prediction accuracy for superscalar processors. It is shown that LGshare can achieve higher branch prediction accuracy than conventional twolevel predictors when the size of the pattern history table is fixed. |
| 關聯: | IEE Proceedings-Computers and Digital Techniques, 149(2): 33-38 |
| 顯示於類別: | [電子工程學系] 期刊論文
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