关键词: 片上网络，性能评价，仿真模型，分析模型

Abstract: The entire design space is extremely large,and there is huge difference of performance between different op- dons. So performance evaluation of different design becomes an important issue in initial stages. The paper took mode ling-based performance evaluation methodology as masterstroke, discussed research status and metrics of evaluation methods which include simulation modeling and analysis modeling, and summarized accuracy estimating methods of NoC evaluation models. Also, a comparison was made between methods mentioned above. Finally, a guidance of future re- search was proposed based on the analysis of future challenges.

Key words: Network on chip, Performance evaluation, Simulation model, Analysis model