Benchmarking XRootD-HTTPS on 400Gbps Links with Variable Latencies
Creators
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1.
University of California, San Diego
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2.
Energy Sciences Network
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3.
California Institute of Technology
Contributors
Abstract
In anticipation of the High Luminosity-LHC era, there is a critical need to oversee software readiness for upcoming growth in network traffic for production and user data analysis access. This paper looks into software and hardware required improvements in US-CMS Tier-2 sites to be able to sustain and meet the projected 400 Gbps bandwidth demands while tackling the challenge posed by varying latencies between sites. Specifically, our study focuses on identifying the performance of XRootD HTTP third-party copies across multiple 400 Gbps links and exploring different host and transfer configurations. Our approach involves systematic testing with variations in the number of origins per cluster and CPU allocations for each origin. By replicating real network conditions and creating network "loops" that traverse multiple switches across the wide area network, we are able to replicate authentic network conditions.
Copyright and License
© The Authors, published by EDP Sciences, 2025. This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Acknowledgement
This work is partially supported by the US National Science Foundation (NSF) Grants OAC1836650, PHY-2323298, PHY-2121686 and OAC-2112167. Finally, this work would not be possible without the significant contributions of collaborators at ESNet, Caltech, and SDSC.
Funding
This work is partially supported by the US National Science Foundation (NSF) Grants OAC1836650, PHY-2323298, PHY-2121686 and OAC-2112167.
Files
epjconf_chep2025_01212.pdf
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Additional details
Related works
- Is new version of
- Discussion Paper: arXiv:2508.00228 (arXiv)
Funding
- National Science Foundation
- OAC-1836650
- National Science Foundation
- PHY-2323298
- National Science Foundation
- PHY-2121686
- National Science Foundation
- OAC-2112167