3 files changed, 28 insertions, 3 deletions
diff --git a/src/vppinfra/elog.c b/src/vppinfra/elog.c
index 8e3f6c18dfa..6daed96719c 100644
--- a/src/vppinfra/elog.c
+++ b/src/vppinfra/elog.c
@@ -396,7 +396,7 @@ format_elog_event (u8 * s, va_list * va)
 }
 
 u8 *
-format_elog_track (u8 * s, va_list * va)
+format_elog_track_name (u8 * s, va_list * va)
 {
   elog_main_t *em = va_arg (*va, elog_main_t *);
   elog_event_t *e = va_arg (*va, elog_event_t *);
@@ -404,6 +404,29 @@ format_elog_track (u8 * s, va_list * va)
   return format (s, "%s", t->name);
 }
 
+u8 *
+format_elog_track (u8 * s, va_list * args)
+{
+  elog_main_t *em = va_arg (*args, elog_main_t *);
+  f64 dt = va_arg (*args, f64);
+  int track_index = va_arg (*args, int);
+  elog_event_t *e, *es;
+  u8 indent;
+
+  indent = format_get_indent (s) + 1;
+
+  es = elog_peek_events (em);
+  vec_foreach (e, es)
+  {
+    if (e->track != track_index)
+      continue;
+    s = format (s, "%U%18.9f: %U\n", format_white_space, indent, e->time + dt,
+		format_elog_event, em, e);
+  }
+  vec_free (es);
+  return s;
+}
+
 void
 elog_time_now (elog_time_stamp_t * et)
 {
diff --git a/src/vppinfra/elog.h b/src/vppinfra/elog.h
index 322c2c63ae7..26352f7d608 100644
--- a/src/vppinfra/elog.h
+++ b/src/vppinfra/elog.h
@@ -515,7 +515,8 @@ void elog_merge (elog_main_t * dst, u8 * dst_tag,
 
 /* 2 arguments elog_main_t and elog_event_t to format event or track name. */
 u8 *format_elog_event (u8 * s, va_list * va);
-u8 *format_elog_track (u8 * s, va_list * va);
+u8 *format_elog_track_name (u8 * s, va_list * va);
+u8 *format_elog_track (u8 * s, va_list * args);
 
 void serialize_elog_main (serialize_main_t * m, va_list * va);
 void unserialize_elog_main (serialize_main_t * m, va_list * va);
diff --git a/src/vppinfra/test_elog.c b/src/vppinfra/test_elog.c
index 1cf5ba1f75c..6abd334e405 100644
--- a/src/vppinfra/test_elog.c
+++ b/src/vppinfra/test_elog.c
@@ -244,7 +244,8 @@ test_elog_main (unformat_input_t * input)
       vec_foreach (e, es)
       {
 	clib_warning ("%18.9f: %12U %U\n", e->time,
-		      format_elog_track, em, e, format_elog_event, em, e);
+		      format_elog_track_name, em, e, format_elog_event, em,
+		      e);
       }
     }