1 files changed, 12 insertions, 0 deletions
diff --git a/src/latency.c b/src/latency.c
index a784be88e..d46890e82 100644
--- a/src/latency.c
+++ b/src/latency.c
@@ -34,6 +34,7 @@
  */
 
 #include "server.h"
+#include "hdr_histogram.h"
 
 /* Dictionary type for latency events. */
 int dictStringKeyCompare(dict *d, const void *key1, const void *key2) {
@@ -725,3 +726,14 @@ nodataerr:
         "No samples available for event '%s'", (char*) c->argv[2]->ptr);
 }
 
+void durationAddSample(int type, monotime duration) {
+    if (type >= EL_DURATION_TYPE_NUM) {
+        return;
+    }
+    durationStats* ds = &server.duration_stats[type];
+    ds->cnt++;
+    ds->sum += duration;
+    if (duration > ds->max) {
+        ds->max = duration;
+    }
+}