Title :
Correlation-based branch prediction
Author :
Pan, Shien-Tai ; So, Kimming ; Rahmeh, Joseph T.
Author_Institution :
IBM Corp., Austin, TX, USA
Abstract :
To enhance the accuracy of branch prediction, a correlation-based branch prediction scheme which takes into consideration the information provided by the outcomes of other branches as well is proposed. The scheme is examined using traces collected from running the SPEC benchmark suite on an IBM RISC System/6000 workstation. The results show that up to an addition of 11% prediction accuracy is achievable by the new scheme. For a branch target buffer, further reduction in branch delay is attained when it is used in conjunction with the new scheme
Keywords :
parallel architectures; performance evaluation; IBM RISC System/6000; SPEC benchmark suite; branch delay; branch prediction; branch target buffer; correlation-based; Accuracy; Computer architecture; Concurrent computing; Counting circuits; Delay; Microprocessors; Parallel processing; Pipelines; Reduced instruction set computing; Workstations;
Conference_Titel :
Signals, Systems and Computers, 1992. 1992 Conference Record of The Twenty-Sixth Asilomar Conference on
Conference_Location :
Pacific Grove, CA
Print_ISBN :
0-8186-3160-0
DOI :
10.1109/ACSSC.1992.269259
