标题： IPA在循环中：计算机处理器吞吐量调节的控制设计 显示英文标题

标题： IPA in the Loop: Control Design for Throughput Regulation in Computer Processors

摘要： 一种由作者最近提出的事件驱动系统性能调节的新技术，包括自适应增益积分控制。 增益通过实时估计被控对象函数相对于控制输入的导数，在控制回路中进行调整。 这种估计是通过无限小扰动分析（IPA）完成的。 主要动机来自于对计算机处理器吞吐量调节的应用，迄今为止，所提出的控制技术的测试和评估是通过仿真进行的。 本文的目的是报告其在一台机器上的实现，即英特尔哈斯韦尔微处理器，并将其性能与从周期级全系统仿真环境获得的性能进行比较。 本文对离散事件系统研讨会的内在贡献在于描述了将基于IPA的设计和仿真转化为具体实现的过程，从而在理论和应用之间架起一座桥梁。 显示英文摘要

摘要： A new technique for performance regulation in event-driven systems, recently proposed by the authors, consists of an adaptive-gain integral control. The gain is adjusted in the control loop by a real-time estimation of the derivative of the plant-function with respect to the control input. This estimation is carried out by Infinitesimal Perturbation Analysis (IPA). The main motivation comes from applications to throughput regulation in computer processors, where to-date, testing and assessment of the proposed control technique has been assessed by simulation. The purpose of this paper is to report on its implementation on a machine, namely an Intel Haswell microprocessor, and compare its performance to that obtained from cycle-level, full system simulation environment. The intrinsic contribution of the paper to the Workshop on Discrete Event System is in describing the process of taking an IPA-based design and simulation to a concrete implementation, thereby providing a bridge between theory and applications.