Please follow the complete thread: https://lore.kernel.org/lkml/xxbnmxqhx4ntc4ztztllbhnral2adog...
> [...] used huge_pages=on - as that is the only sane thing to do with 10s to 100s of GB of shared memory [...] if I disable huge pages, I actually can reproduce the contention [...]
Thank you for sharing.
So it looks like an edge case, as usually you need huge pages at scale ??