3 files changed, 14 insertions, 7 deletions

diff --git a/src/vnet/session/session.h b/src/vnet/session/session.h
index 3bdf6c9d93e..35c8fb4069f 100644
--- a/src/vnet/session/session.h
+++ b/src/vnet/session/session.h
@@ -524,6 +524,13 @@ transport_tx_fifo_size (transport_connection_t * tc)
   return s->server_tx_fifo->nitems;
 }
 
+always_inline u8
+transport_rx_fifo_has_ooo_data (transport_connection_t * tc)
+{
+  stream_session_t *s = session_get (tc->c_index, tc->thread_index);
+  return svm_fifo_has_ooo_data (s->server_rx_fifo);
+}
+
 always_inline f64
 transport_dispatch_period (u32 thread_index)
 {
diff --git a/src/vnet/session/session_node.c b/src/vnet/session/session_node.c
index edc518ee872..64c873cc758 100644
--- a/src/vnet/session/session_node.c
+++ b/src/vnet/session/session_node.c
@@ -751,10 +751,9 @@ static void
 session_update_dispatch_period (session_manager_worker_t * wrk, f64 now,
 				u32 thread_index)
 {
-  if (wrk->last_tx_packets > 8)
+  if (wrk->last_tx_packets > 1)
     {
       f64 sample = now - wrk->last_vlib_time;
-      sample = (sample * wrk->last_tx_packets) / VLIB_FRAME_SIZE;
       wrk->dispatch_period = (wrk->dispatch_period + sample) * 0.5;
     }
   wrk->last_vlib_time = now;
diff --git a/src/vnet/session/transport.c b/src/vnet/session/transport.c
index 42149eb36a6..06c541a9e2b 100644
--- a/src/vnet/session/transport.c
+++ b/src/vnet/session/transport.c
@@ -47,7 +47,8 @@ static clib_spinlock_t local_endpoints_lock;
  */
 static double transport_pacer_period;
 
-#define TRANSPORT_PACER_MIN_MSS 1460
+#define TRANSPORT_PACER_MIN_MSS 	1460
+#define TRANSPORT_PACER_MIN_BURST 	TRANSPORT_PACER_MIN_MSS
 
 u8 *
 format_transport_proto (u8 * s, va_list * args)
@@ -518,7 +519,8 @@ spacer_update_bucket (spacer_t * pacer, u32 bytes)
 static inline void
 spacer_update_max_burst_size (spacer_t * pacer, u32 max_burst_bytes)
 {
-  pacer->max_burst_size = clib_max (max_burst_bytes, TRANSPORT_PACER_MIN_MSS);
+  pacer->max_burst_size = clib_max (max_burst_bytes,
+				    TRANSPORT_PACER_MIN_BURST);
 }
 
 static inline void
@@ -561,9 +563,8 @@ void
 transport_connection_tx_pacer_update (transport_connection_t * tc,
 				      u64 bytes_per_sec)
 {
-  u32 burst_size;
-
-  burst_size = bytes_per_sec * transport_dispatch_period (tc->thread_index);
+  f64 dispatch_period = transport_dispatch_period (tc->thread_index);
+  u32 burst_size = 1.1 * bytes_per_sec * dispatch_period;
   spacer_set_pace_rate (&tc->pacer, bytes_per_sec);
   spacer_update_max_burst_size (&tc->pacer, burst_size);
 }