Abstract
This paper shows how to use a Linux-based operating system as a real-time processing platform for low-latency and predictable packet processing in cloudified radio-access network (cRAN) scenarios. This use-case exhibits challenging end-to-end processing latencies, in the order of milliseconds for the most time-critical layers of the stack. A significant portion of the variability and instability in the observed end-to-end performance in this domain is due to the power saving capabilities of modern CPUs, often in contrast with the low-latency and high-performance requirements of this type of applications. We discuss how to properly configure the system for this scenario, and evaluate the proposed configuration on a synthetic application designed to mimic the behavior and computational requirements of typical software components implementing baseband processing in production environments.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Similar content being viewed by others
Notes
- 1.
- 2.
- 3.
In this case, gaussian distributions have been used for the sake of simplicity.
References
Abeni, L., Balsini, A., Cucinotta, T.: Container-based real-time scheduling in the Linux kernel. SIGBED Rev. 16(3), 33–38 (2019)
Ericsson: 5G wireless access: an overview - Ericsson White Paper 1/28423-FGB1010937, April 2020
ETSI: Network Functions Virtualisation - Introductory White Paper - An Introduction, Benefits, Enablers, Challenges & Call for Action. Technical report, SDN and Openflow World Congress, Darmstadt, Germany (2012). https://portal.etsi.org/nfv/nfv_white_paper.pdf
ETSI: Network Functions Virtualisation (NFV) - Update White Paper - Network Operator Perspectives on Industry Progress. Technical report, SDN and Openflow World Congress, Frankfurt, Germany (2013). http://portal.etsi.org/nfv/nfv_white_paper2.pdf
Foukas, X., Radunovic, B.: Concordia: Teaching the 5 g VRAN to share compute. In: Proceedings of the 2021 ACM SIGCOMM 2021 Conference, pp. 580–596. SIGCOMM 2021, Association for Computing Machinery, New York, NY, USA (2021)
Giannone, F., et al.: Impact of ran virtualization on fronthaul latency budget: an experimental evaluation. In: IEEE Globecom Workshops, pp. 1–5, December 2017
Le, T.K., Salim, U., Kaltenberger, F.: An overview of physical layer design for ultra-reliable low-latency communications in 3 g pp releases 15, 16, and 17. IEEE Access 9, 433–444 (2021). https://doi.org/10.1109/ACCESS.2020.3046773
Lelli, J., Scordino, C., Abeni, L., Faggioli, D.: Deadline scheduling in the Linux kernel. Softw. Pract. Exp. 46(6), 821–839 (2016)
Open Networking Foundation (ONF): ONF SDN Evolution. ONF TR-535, ONF (2016). http://www.opennetworking.org/wp-content/uploads/2013/05/TR-535_ONF_SDN_Evolution.pdf
Suchánek, M., Navrátil, M., Bailey, L., Boyle, C.: Performance Tuning Guide - Monitoring and optimizing subsystem throughput in RHEL 7, August 2021. https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/performance_tuning_guide/index
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2022 Springer Nature Switzerland AG
About this paper
Cite this paper
Abeni, L., Cucinotta, T., Pinczel, B., Mátray, P., Srinivasan, M.K., Lindquist, T. (2022). On the Use of Linux Real-Time Features for RAN Packet Processing in Cloud Environments. In: Anzt, H., Bienz, A., Luszczek, P., Baboulin, M. (eds) High Performance Computing. ISC High Performance 2022 International Workshops. ISC High Performance 2022. Lecture Notes in Computer Science, vol 13387. Springer, Cham. https://doi.org/10.1007/978-3-031-23220-6_26
Download citation
DOI: https://doi.org/10.1007/978-3-031-23220-6_26
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-031-23219-0
Online ISBN: 978-3-031-23220-6
eBook Packages: Computer ScienceComputer Science (R0)