tcp: pacer and mrtt estimation improvements

- update pacer once per burst
- better estimate initial rtt
- compute smoothed average for higher precision rtt estimate

Change-Id: I06d41a98784cdf861bedfbee2e7d0afc0d0154ef
Signed-off-by: Florin Coras <fcoras@cisco.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/src/vnet/session/session_node.c b/src/vnet/session/session_node.c
index 64c873cc758..22d8d3c45b0 100644
--- a/src/vnet/session/session_node.c
+++ b/src/vnet/session/session_node.c
@@ -99,7 +99,7 @@ session_mq_reset_reply_handler (void *data)
   s = session_get_if_valid (index, thread_index);
   if (!s)
     {
-      clib_warning ("Invalid session!");
+      SESSION_DBG ("Invalid session!");
       return;
     }
   app_wrk = app_worker_get (s->app_wrk_index);
@@ -751,7 +751,7 @@ static void
 session_update_dispatch_period (session_manager_worker_t * wrk, f64 now,
 				u32 thread_index)
 {
-  if (wrk->last_tx_packets > 1)
+  if (wrk->last_tx_packets)
     {
       f64 sample = now - wrk->last_vlib_time;
       wrk->dispatch_period = (wrk->dispatch_period + sample) * 0.5;