Yibin Shen

Oversubscription is central to large-scale clouds: multiplexing virtual CPUs (vCPUs) over fewer physical CPUs (pCPUs) improves utilization and sales density, but meeting strict latency Service Level Objectives (SLOs) requires precise control over idle behavior. In 1:1 settings, idle-passthrough—e...

Secure containers such as Kata Containers strengthen isolation by running each container inside a lightweight VM. On today’s virtualized clouds, this creates an unavoidable form of nested virtualization with dominant cost in memory virtualization. Existing approaches entangle CPU virtualization a...

High-end virtual machines (VMs) have become essential in public clouds for supporting large-scale guest applications. While conventional pre-copy live migration cannot reliably migrate such high-end VMs due to convergence problems, post-copy migration offers a viable alternative. However, high-en...