Satori: enlightened page sharing

摘要: We introduce Satori, an efficient and effective system for sharing memory in virtualised systems. Satori uses enlightenments guest operating systems to detect opportunities manage the surplus that results from sharing. Our approach has three key benefits over existing systems: it is better able short-lived opportunities, incurs negligible overhead, maintains performance isolation between virtual machines. We present terms of hypervisor-agnostic design decisions, also discuss our implementation Xen machine monitor. In evaluation, we show quickly exploits up 94% maximum possible with insignificant overhead. Furthermore, demonstrate workloads where additional improves macrobenchmark by a factor two.