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For curiosity I upgraded the kernel of my VPS running Debian 11 from 5.10 to 6.1. The networking became visibly slower. All TCP receive and send rate droped to
by netheril96 4y ago
For curiosity I upgraded the kernel of my VPS running Debian 11 from 5.10 to 6.1. The networking became visibly slower. All TCP receive and send rate droped to at least 1/4 of the original. I had to restore the original kernel and the network became fine again.
I don't think it is a bug in the kernel. More likely the userspace or the host system needs to be reconfigured to work well with the bleeding edge kernel. Still I am curious, what exactly may cause this dramatic drop?