منابع مشابه
Limits of Indirect Branch Prediction
Indirect branch prediction is likely to become more important in the future because indirect branches tend to be more frequent in object-oriented programs. With indirect branch prediction misprediction rates of around 25% on current processors, such branches can incur a significant fraction of branch misses even though indirect branches are less frequent than the more predictable conditional br...
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Indirect branch prediction is a performance limiting factor for current computer systems, preventing superscalar processors from exploiting the available ILP. Indirect branches are responsible for 55.7% of mispredictions in our benchmark set, although they only stand for 15.5% of dynamic branches. Moreover, a 10.8% average IPC speedup is achievable by perfectly predicting all indirect branches....
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Accurate branch prediction is critical to performance; mispredicted branches mean that ten’s of cycles may be wasted in superscalar architectures. Architectures combining very effective branch prediction mechanisms coupled with modified branch target buffers (BTB’s) have been proposed for wide-issue processors. These mechanisms require considerable processor resources. Concurrently, the larger ...
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متن کاملAdvanced Techniques for Improving Indirect Branch Prediction Accuracy
Deep pipelines and fast clock rates are necessitating the development of high accuracy branch predictors. From microarchitectural viewpoint, in the last decade the importance of indirect branch prediction increased even though, in the computing programs the indirect jumps remain less frequent than the more predictable conditional branches. One reason refers to predicative execution that implies...
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ژورنال
عنوان ژورنال: ACM SIGARCH Computer Architecture News
سال: 1998
ISSN: 0163-5964
DOI: 10.1145/279361.279380