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
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)