On 3/24/19 9:26 PM, Alexei Starovoitov wrote:
> The kernel has to be fast as a dataplane but these extra features
> will slow down the routing by making kernel-as-database scale a bit better.
I took Vincent Bernat's fib lookup microbenchmark and added input and
output route lookups to it. Through this commit:
commit 4d5edf447c88e59f5c5716180c1001cde9bf4473
Author: David Ahern <dsah...@gmail.com>
Date: Mon Mar 11 18:34:48 2019 -0700
ipv4: Allow ipv6 gateway with ipv4 routes
There is no real measurable difference for IPv4 fib lookups
(fib_lookup), input routes (ip_route_input_rcu) and output routes
(ip_route_output_key_hash_rcu). This is using a bare metal server with a
L5640 Xeon CPU.
The above commit is the target for the first 2 rounds of patches. I will
of course be checking performance each step along the way to nexthop
objects.
