diff --git a/designer-base/src/main/java/com/fr/design/carton/latency/DesignerLatencyMetric.java b/designer-base/src/main/java/com/fr/design/carton/latency/DesignerLatencyMetric.java
index 68aa42b4c9..4dc38634c0 100644
--- a/designer-base/src/main/java/com/fr/design/carton/latency/DesignerLatencyMetric.java
+++ b/designer-base/src/main/java/com/fr/design/carton/latency/DesignerLatencyMetric.java
@@ -87,6 +87,7 @@ public class DesignerLatencyMetric {
                     collectAndSubmit();
                 }
             });
+            FineLoggerFactory.getLogger().info("[Latency] designer latency metric started.");
         }
     }
 
@@ -102,6 +103,7 @@ public class DesignerLatencyMetric {
                 this.scheduler.shutdown();
             }
             collectAndSubmit();
+            FineLoggerFactory.getLogger().info("[Latency] designer latency metric stopped.");
         }
     }
 
@@ -147,6 +149,7 @@ public class DesignerLatencyMetric {
         para.put("content", collect());
         try {
             HttpToolbox.post(getLatencyUrl(), para);
+            FineLoggerFactory.getLogger().debug("[Latency] submit latency log to cloud.");
         } catch (Throwable t) {
             FineLoggerFactory.getLogger().debug(t,"[Latency] failed to submit latency log to cloud.");
         }
@@ -163,7 +166,9 @@ public class DesignerLatencyMetric {
         info.put(DESIGN_METHOD, WorkContext.getCurrent().isLocal() ? LOCAL : REMOTE);
         info.put(OPERANDS_NUM, LATENCY_CONTAINER.values().stream().mapToInt(AtomicInteger::get).sum());
         for (Map.Entry<LatencyLevel, AtomicInteger> entry : LATENCY_CONTAINER.entrySet()) {
-            info.put(entry.getKey().getMark(), entry.getValue().get());
+            if (!LatencyLevel.UNDEFINE.equals(entry.getKey())) {
+                info.put(entry.getKey().getMark(), entry.getValue().get());
+            }
         }
         return info;
     }