| Issue |
EPJ Web Conf.
Volume 337, 2025
27th International Conference on Computing in High Energy and Nuclear Physics (CHEP 2024)
|
|
|---|---|---|
| Article Number | 01254 | |
| Number of page(s) | 8 | |
| DOI | https://doi.org/10.1051/epjconf/202533701254 | |
| Published online | 07 October 2025 | |
https://doi.org/10.1051/epjconf/202533701254
CVMFS: Pushing performance on highly parallel, manycore clients
1 CERN, Switzerland
2 Jump Trading, LLC
* e-mail: laura.promberger@cern.ch
Published online: 7 October 2025
The CernVM File System (CVMFS) is an efficient distributed, readonly file system that streams software and data on demand. Its main focus is to distribute experiment software and conditions data to the world-wide LHC computing infrastructure. Recent hardware trends have increased the usage of CVMFS in highly parallel environments. Nodes with more than 64 physical cores running concurrent workloads are common. These highly parallel, manycore workloads have exposed specific bugs and limitations of CVMFS in such environments. This contribution reports on the developments that address these issues, and presents new performance benchmarks on machines with 256 (virtual) cores.
© 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.
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