Apparently there was a bug that prevented the fq_codel module from being loaded, leading to:
"Change default TCP queue discipline to fq_codel to address missing patch in SLES 15SP4. This is intended to address many of the communication failures larger scale jobs are experiencing." From: https://docs.nersc.gov/systems/perlmutter/timeline/ -- 40 years of net history, a couple songs: https://www.youtube.com/watch?v=D9RGX6QFm5E Dave Täht CSO, LibreQos _______________________________________________ Bloat mailing list Bloat@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/bloat