Advanced Computer Architecture, Imperial College 2001
16
Extreme example - “go”
•“go” is a SPEC95 benchmark code with highly-dynamic, highly-correlated branch behaviour
•
•The bias of “go”s branches is more-or-less evenly spread between 0% taken and 100% taken
•All known predictors do badly
Text Box: Zhendong Su and Min Zhou, A comparative analysis of branch prediction schemes (http://www.cs.berkeley.edu/~zhendong/cs252/project.html)
Zhendong Su and Min Zhou, A comparative analysis of branch prediction schemes
(http://www.cs.berkeley.edu/~zhendong/cs252/project.html)