Netdev 0x13 - Shenango: Achieving High CPU Efficiency for Latency sensitive Datacenter Workloads
In this talk Amy Ousterhout describes the approach taken by Shenango which achieves
great CPU efficiency while maintaining the high request rates.
Datacenter applications demand microsecond-scale tail latencies and high request rates from operating systems. Achieving these goals in a CPU-efficient way is an open problem. Because of the high overheads of today’s kernel, the best available solution to achieve
microsecond-scale latencies is kernel-bypass networking, which dedicates CPU cores to applications for spin-polling the network card. But this approach wastes CPU: even at
modest average loads, one must dedicate enough cores for the peak expected load.
More info:
https://netdevconf.org/0x13/session.h...