Using the SimOS machine simulator to study complex computer systems

摘要: SimOS is an environment for studying the hardware and software of computer systems. simulates a system in enough detail to boot commercial operating run realistic workloads on top it. This paper identifies two challenges that machine simulators such as must overcome order effectively analyze large complex workloads: handling long workload execution times collecting data effectively. To study long-running workloads, includes multiple interchangeable simulation models each component. By selecting appropriate combination models, user can explicitly control tradeoff between speed detail. handle amount low-level generated by contains flexible annotation event classification mechanisms map back concepts meaningful user. has been extensively used new designs, application performance, We include case studies demonstrate how simulator be workloads.