Elastic RSS
Alexander Rucker, Muhammad Mateen Shahbaz, Tushar Swamy, Kunle Olukotun · 2019
Meeting Service-Level Objectives (SLOs) for workloads in today's datacenter environments places stringent demands on end-host servers: work conservation, tolerance to varying request service time distributions, high throughput, and CPU efficiency. Beginning with Receive Side Scaling (RSS), various schedulers have been proposed to steer packets to cores while preserving locality. However, these techniques are either too inflexible (randomly steering traffic at the NIC) or slow (bottlenecked by a central CPU-based scheduler).