Changes to improve BGP convergence time:

- Schedule write thread for advertisements and withdraws only if corresponding
  FIFOs are growing and/or upon work_queue getting fully processed.
- Set non-default yield time for the main work_queue, as the default value
  of 10ms results in yielding after processing very few nodes.
- Remove unnecessary scheduling of write thread when update packet is formed.
- If MRAI is 0, don't start a timer unnecessarily, directly schedule write
  thread.
- Some debugs.

1 files changed, 3 insertions, 0 deletions

diff --git a/bgpd/bgp_advertise.h b/bgpd/bgp_advertise.h
index 672d42d8c..36ab57698 100644
--- a/bgpd/bgp_advertise.h
+++ b/bgpd/bgp_advertise.h
@@ -146,6 +146,9 @@ struct bgp_synchronize
     (F)->count = 0;				\
   } while (0)
 
+#define BGP_ADV_FIFO_COUNT(F) \
+  (F)->count
+
 /* Prototypes.  */
 extern void bgp_adj_out_set (struct bgp_node *, struct peer *, struct prefix *,
 		      struct attr *, afi_t, safi_t, struct bgp_info *);