The performance analysis process of microprocessor has become more and more difficult with the rapid development of modern processor architecture.The traditional performance analysis approach based on macro benchmarks and simulator is complex and time-consuming.Moreover

it can not analyze the micro-architectural characteristics systematically.In this paper

a novel performance analysis approach based on micro-benchmark (Godson-Microbench) and ideal-bound computation formulas is proposed.This approach extends the bounds based performance analysis approach.Compared with the traditional approach

this approach can be used to analyze the pipeline efficiency and identify the performance bottleneck.With this approach

the micro-architecture of the Godson-2 processor and Alpha21264 processor are analyzed and compared.On the basis of this work

we improve the architecture of Godson-2

resulting a 13.8% increase in performance of the micro-benchmarks and 28.8% increase in IPC of the SPEC CPU2000.This performance analysis approach is a complement of the cycle-accurate simulation and plays an important role in the architectural optimization process of Godson-2.