On Mon, 7 Jan 2019 12:41:30 -0800 David Ahern <dsah...@kernel.org> wrote:
> From: David Ahern <dsah...@gmail.com> > > ip route uses ll_name_to_index to convert the user given device name to an > index. At the moment ll_name_to_index uses if_nametoindex which is ioctl > based and does not cache the result. When using a batch file this means > the same device lookups can be done repeatedly adding unnecessary overhead > (socket + ioctl call for each device lookup). > > Add a new function, ll_link_get, to send a netlink based RTM_GETLINK. If > successful, cache the result in idx_head and name_head so future lookups > can re-use the entry. > > With this change the time to install routes via a batch file is reduced > from 30.7 seconds to 17.6 seconds (720,022 routes with 2 ecmp nexthops > where the nexthop device is given). > > Signed-off-by: David Ahern <dsah...@gmail.com> What if a ip command in the batch does a rename?
