Re: Regression: kernel 4.14 an later very slow with many ipsec tunnels

From: Florian Westphal
Date: Thu Oct 25 2018 - 18:45:38 EST

Wolfgang Walter <linux@xxxxxxx> wrote:
> there is now a new 4.19 which still has the big performance regression when
> many ipsec tunnels are configured (throughput and latency get worse by 10 to
> 50 times) which makes any kernel > 4.9 unusable for our routers.

This is mostly untested, if you want to test this anyway and
find bugs please feel free to report them to me.

Improvements to test script in patch #1 welcome as well (its what
i've been using so far to test this).