diff --git a/util/execdetails.go b/util/execdetails.go
index 30f108a4..a9db7a7c 100644
--- a/util/execdetails.go
+++ b/util/execdetails.go
@@ -653,6 +653,13 @@ func (td *TimeDetail) String() string {
 		buf.WriteString("total_wait_time: ")
 		buf.WriteString(FormatDuration(td.WaitTime))
 	}
+	if td.KvReadWallTime > 0 {
+		if buf.Len() > 0 {
+			buf.WriteString(", ")
+		}
+		buf.WriteString("total_kv_read_wall_time: ")
+		buf.WriteString(FormatDuration(td.KvReadWallTime))
+	}
 	if td.TotalRPCWallTime > 0 {
 		if buf.Len() > 0 {
 			buf.WriteString(", ")
@@ -663,6 +670,17 @@ func (td *TimeDetail) String() string {
 	return buf.String()
 }
 
+// Merge merges the time detail into itself.
+func (td *TimeDetail) Merge(detail *TimeDetail) {
+	if detail != nil {
+		td.ProcessTime += detail.ProcessTime
+		td.SuspendTime += detail.SuspendTime
+		td.WaitTime += detail.WaitTime
+		td.KvReadWallTime += detail.KvReadWallTime
+		td.TotalRPCWallTime += detail.TotalRPCWallTime
+	}
+}
+
 // MergeFromTimeDetail merges time detail from pb into itself.
 func (td *TimeDetail) MergeFromTimeDetail(timeDetailV2 *kvrpcpb.TimeDetailV2, timeDetail *kvrpcpb.TimeDetail) {
 	if timeDetailV2 != nil {