基于双路由单元的SpaceWire总线性能评价方法研究*

本文基于双路由单元研究了SpaceWire总线的性能评价体系。研究中,首先给出了双路由单元的定义,推导了基于双路由单元的路由系统的数据传输时间和资源耗费的计算方法；其次推导了基于双路由单元的多路由拓扑系统的性能评价体系；然后采用蒙特卡洛模拟的方法建立了双路由单元系统的模拟平台,仿真计算了路由单元在不同接口配置情况下的性能。研究结果表明：基于双路由单元的传输时间和资源耗费指标能够评价SpaceWire总线的性能；并且在不同接口配置时,存在一种最佳的配置方式能够使得系统的性能达到最优。

Algorithm of Performance Evaluation for SpaceWire Group Adaptive Routing

The performance evaluation system of Space Wire bus based on dual-route unit is studied in this paper. In the first part, the definition of dual-route unit is given and the computation method of calculating data transmission time and resource consumption of the route system based on dual-route unit is derived. In the second part, the performance evaluation system of multi-route topological system based on dual-route unit is derived. In the final part, the simulation platform of dual-route unit system is built using Monte-Carlo, and the performance of route unit is simulated considering different interface configurations. Our study shows that the performance of Space Wire bus can be evaluated using transmission time and resource consumption of systems based on dual-route units, and also that a configuration exists such that the system performance can be optimized to the best when different interface configurations are considered.