Linux/SimOS - A Simulation Environment for Evaluating High-Speed

This paper presents Linux/SimOS, a Linux operating system port to SimOS, which is a complete machine simulator from Stanford. The motivation for Linux/SimOS is to alleviate the limitations of SimOS, which only supports proprietary operating systems. The contributions made in this paper are two-fold: First, the major modifications that were necessary to run Linux on SimOS are described. Second, a detailed analysis of the UDP/IP protocol and M-VIA is performed to demonstrate the capabilities of Linux/SimOS. The simulation study shows that Linux/SimOS is capable of capturing all aspects of communication performance, including the effects of the kernel, device drivers, and network interface. 1