UniNet: accelerating the container network data plane in IaaS clouds
Ma, Yuan
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Permalink
https://hdl.handle.net/2142/127366
Description
Title
UniNet: accelerating the container network data plane in IaaS clouds
Author(s)
Ma, Yuan
Issue Date
2024-12-05
Director of Research (if dissertation) or Advisor (if thesis)
Kindratenko , Volodymyr
Department of Study
Electrical & Computer Eng
Discipline
Electrical & Computer Engr
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
M.S.
Degree Level
Thesis
Keyword(s)
SmartNIC, IaaS Cloud, Containter Network
Abstract
Kubernetes (K8s) is a container orchestration platform for cloud-based IaaS environments. While it operates on either bare-metal servers or VMs, users prefer VMs for cost savings and agility reasons despite the added network overhead. This overhead, stemming from dual network tunneling at the VM and container levels, degrades performance. To address this, we present UniNet, a SmartNIC-based solution that offloads container-level network tunneling. We designed UniNet to be compatible with leading Container Network Interfaces (CNIs). This approach involves three key elements: (1) transforming VF-based NICs into a container network gateway, (2) offloading the critical path of the data plane functionalities to SmartNICs for enhanced performance and reduced latency, and (3) instituting an isolated control plane that separates VM- and container-level rule insertions, making it tenant-accessible. UniNet boosts CNI throughput by 7.08x on average, cuts tail latency by 41.6%, and reduces CPU usage by up to 5.6x for the receiver and 4.02x for the sender, respectively.
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