Abstract
This paper presents an extensive experimental evaluation of the layer 3 packet forwarding performance of virtual software routers based on the Linux kernel and the KVM virtual machine. The impact of various tuning and configuration options on forwarding performance is evaluated, focussing on the mechanism used for moving data to and from virtual machines, the algorithm used for scheduling the virtual router tasks, the number of used CPU cores, and the router tasks affinities. The presented results show how to properly configure the virtual router components to improve forwarding performance and the benefits of using appropriate CPU schedulers. Furthermore, some advanced architectures based on virtual router aggregation are evaluated. The presented experiments show that architectures based on router aggregation can better exploit the available CPU cores to reach performance not far from the ones obtained by non-virtualised software routers.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
