开源处理器Rocket的分支预测机制与性能评估

Performance Evaluation of Branch Prediction Mechanism for Open-source Processor Rocket

Rocket是基于RISC-V指令集架构的开源处理器,具有分支预测功能,其实现了GShare分支预测机制,在分析Rocket处理器分支预测处理过程、分支预测实现原理的基础上,利用模拟器进行了性能测试,并依据测试结果,对Rocket处理器分支预测参数配置给出建议。

The Rocket is an open source processor based on RISC-V instruction set architecture,it has branch prediction function, it im- plements the GShare branch prediction mechanism.In the analysis of the Rocket processor branch prediction process, branch prediction based on the principle of performance, the tests are carried out by the simulator,. According to the test results, the suggestions on the configuration of Rocket processor branch prediction parameters are given.