학술논문
DAQS: Dynamic and Accurate QoS for SR-IOV
Document Type
Conference
Author
Source
2023 14th International Conference on Information and Communication Technology Convergence (ICTC) Information and Communication Technology Convergence (ICTC), 2023 14th International Conference on. :1440-1442 Oct, 2023
Subject
Language
ISSN
2162-1241
Abstract
Single Root Input/Output Virtualization (SR-IOV) is a key feature in the PCI Express (PCIe) specifications, which facilitates the shared use of the same device in a virtualized environment by different virtual machines (VMs) and enables network traffic to bypass the usual virtualization stack, reducing interference among Virtual Functions (VFs). However, guaranteeing Quality of Service (QoS) as mandated by Service Level Agreements (SLAs) in these environments is challenging due to the host stack bypassing. This paper discusses these challenges and proposes an approach to ensure accurate QoS in SR-IOV environments by monitoring and regulating traffic from the host side through QEMU Guest Agent. The proposed approach automatically manages active VFs to meet SLA while fully utilizing the host bandwidth.