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authorRenato Westphal <renato@opensourcerouting.org>2017-10-03 03:06:01 +0200
committerRenato Westphal <renato@opensourcerouting.org>2017-10-10 14:05:02 +0200
commitf4e14fdba7de19ca660278a0b8c750140db5868b (patch)
tree58eb2d22e84b24672ddff1dd786f18e5bc555b15 /zebra/zserv.c
parentlib: register 'if_var_handlers' only once (diff)
downloadfrr-f4e14fdba7de19ca660278a0b8c750140db5868b.tar.xz
frr-f4e14fdba7de19ca660278a0b8c750140db5868b.zip
*: use rb-trees to store interfaces instead of sorted linked-lists
This is an important optimization for users running FRR on systems with a large number of interfaces (e.g. thousands of tunnels). Red-black trees scale much better than sorted linked-lists and also store the elements in an ordered way (contrary to hash tables). This is a big patch but the interesting bits are all in lib/if.[ch]. Signed-off-by: Renato Westphal <renato@opensourcerouting.org>
Diffstat (limited to '')
-rw-r--r--zebra/zserv.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/zebra/zserv.c b/zebra/zserv.c
index fd2c5dd97..2a08a556d 100644
--- a/zebra/zserv.c
+++ b/zebra/zserv.c
@@ -998,14 +998,13 @@ static int zread_interface_add(struct zserv *client, u_short length,
struct zebra_vrf *zvrf)
{
struct vrf *vrf;
- struct listnode *ifnode, *ifnnode;
struct interface *ifp;
/* Interface information is needed. */
vrf_bitmap_set(client->ifinfo, zvrf_id(zvrf));
RB_FOREACH (vrf, vrf_id_head, &vrfs_by_id) {
- for (ALL_LIST_ELEMENTS(vrf->iflist, ifnode, ifnnode, ifp)) {
+ RB_FOREACH (ifp, if_name_head, &vrf->ifaces_by_name) {
/* Skip pseudo interface. */
if (!CHECK_FLAG(ifp->status, ZEBRA_INTERFACE_ACTIVE))
continue;