From: Ido Schimmel <ido...@idosch.org> Date: Tue, 18 Jun 2019 18:12:42 +0300
> Unlike IPv4, an IPv6 multipath route in the kernel is composed from > multiple sibling routes, each representing a single nexthop. > > Therefore, an addition of a multipath route with N nexthops translates > to N in-kernel notifications. This is inefficient for device drivers > that need to program the route to the underlying device. Each time a new > nexthop is appended, a new nexthop group needs to be constructed and the > old one deleted. > > This patchset improves the situation by sending a single notification > for a multipath route addition / deletion instead of one per-nexthop. > When adding thousands of multipath routes with 16 nexthops, I measured > an improvement of about x10 in the insertion rate. ... Series applied, thanks everyone.
