diff --git a/pom.xml b/pom.xml
index 1e5f5bfa0..36916c72f 100644
--- a/pom.xml
+++ b/pom.xml
@@ -5,7 +5,7 @@
     <artifactId>liteflow</artifactId>
     <packaging>jar</packaging>
     <modelVersion>4.0.0</modelVersion>
-    <version>1.2.20-SNAPSHOT</version>
+    <version>1.3.0</version>
 
     <properties>
     	<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
diff --git a/src/main/java/com/thebeastshop/liteflow/core/NodeComponent.java b/src/main/java/com/thebeastshop/liteflow/core/NodeComponent.java
index 612d8d9b5..0f77eb276 100644
--- a/src/main/java/com/thebeastshop/liteflow/core/NodeComponent.java
+++ b/src/main/java/com/thebeastshop/liteflow/core/NodeComponent.java
@@ -50,7 +50,6 @@ public abstract class NodeComponent {
 		CompStatistics statistics = new CompStatistics();
 		statistics.setComponentClazzName(this.getClass().getSimpleName());
 		statistics.setTimeSpent(timeSpent);
-		statistics.setMemorySpent(initm-endm);
 		MonitorBus.addStatistics(statistics);
 		
 		
diff --git a/src/main/java/com/thebeastshop/liteflow/entity/data/AbsSlot.java b/src/main/java/com/thebeastshop/liteflow/entity/data/AbsSlot.java
index 3fa11409f..b95c47321 100644
--- a/src/main/java/com/thebeastshop/liteflow/entity/data/AbsSlot.java
+++ b/src/main/java/com/thebeastshop/liteflow/entity/data/AbsSlot.java
@@ -139,4 +139,8 @@ public abstract class AbsSlot implements Slot{
 	public String getRequestId() {
 		return (String)dataMap.get(REQUEST_ID);
 	}
+
+	public Deque<CmpStep> getExecuteSteps() {
+		return executeSteps;
+	}
 }
diff --git a/src/main/java/com/thebeastshop/liteflow/monitor/MonitorBus.java b/src/main/java/com/thebeastshop/liteflow/monitor/MonitorBus.java
index 8c4ce7de4..c25973c5a 100644
--- a/src/main/java/com/thebeastshop/liteflow/monitor/MonitorBus.java
+++ b/src/main/java/com/thebeastshop/liteflow/monitor/MonitorBus.java
@@ -60,34 +60,22 @@ public class MonitorBus {
 	
 	public static void printStatistics(){
 		try{
-			Map<String, Long> compAverageTimeSpent = new HashMap<String, Long>();
-			Map<String, Long> compAverageMemorySpent = new HashMap<String, Long>();
+			Map<String, BigDecimal> compAverageTimeSpent = new HashMap<String, BigDecimal>();
 			
 			long totalTimeSpent = 0;
-			long totalMemorySpent = 0;
 			
 			for(Entry<String, LimitQueue<CompStatistics>> entry : statisticsMap.entrySet()){
 				for(CompStatistics statistics : entry.getValue()){
 					totalTimeSpent += statistics.getTimeSpent();
-					totalMemorySpent += statistics.getMemorySpent();
 				}
-				compAverageTimeSpent.put(entry.getKey(), new BigDecimal(totalTimeSpent).divide(new BigDecimal(entry.getValue().size()), 2, RoundingMode.HALF_UP).longValue());
-				compAverageMemorySpent.put(entry.getKey(), new BigDecimal(totalMemorySpent).divide(new BigDecimal(entry.getValue().size()), 2, RoundingMode.HALF_UP).longValue());
+				compAverageTimeSpent.put(entry.getKey(), new BigDecimal(totalTimeSpent).divide(new BigDecimal(entry.getValue().size()), 2, RoundingMode.HALF_UP));
 			}
 			
-			List<Entry<String, Long>> compAverageTimeSpentEntryList = new ArrayList<>(compAverageTimeSpent.entrySet());
-			List<Entry<String, Long>> compAverageMemorySpentEntryList = new ArrayList<>(compAverageMemorySpent.entrySet());
+			List<Entry<String, BigDecimal>> compAverageTimeSpentEntryList = new ArrayList<>(compAverageTimeSpent.entrySet());
 			
-			Collections.sort(compAverageTimeSpentEntryList,new Comparator<Entry<String, Long>>() {
+			Collections.sort(compAverageTimeSpentEntryList,new Comparator<Entry<String, BigDecimal>>() {
 				@Override
-				public int compare(Entry<String, Long> o1, Entry<String, Long> o2) {
-					return o2.getValue().compareTo(o1.getValue());
-				}
-			});
-			
-			Collections.sort(compAverageMemorySpentEntryList,new Comparator<Entry<String, Long>>() {
-				@Override
-				public int compare(Entry<String, Long> o1, Entry<String, Long> o2) {
+				public int compare(Entry<String, BigDecimal> o1, Entry<String, BigDecimal> o2) {
 					return o2.getValue().compareTo(o1.getValue());
 				}
 			});
@@ -99,13 +87,9 @@ public class MonitorBus {
 			logStr.append(MessageFormat.format("SLOT TOTAL SIZE : {0}\n", DataBus.SLOT_SIZE));
 			logStr.append(MessageFormat.format("SLOT OCCUPY COUNT : {0}\n", DataBus.OCCUPY_COUNT));
 			logStr.append("===============================TIME AVERAGE SPENT=====================================\n");
-			for(Entry<String, Long> entry : compAverageTimeSpentEntryList){
+			for(Entry<String, BigDecimal> entry : compAverageTimeSpentEntryList){
 				logStr.append(MessageFormat.format("COMPONENT[{0}] AVERAGE TIME SPENT : {1}\n", entry.getKey(), entry.getValue()));
 			}
-			logStr.append("==============================MEMORY AVERAGE SPENT====================================\n");
-			for(Entry<String, Long> entry : compAverageMemorySpentEntryList){
-				logStr.append(MessageFormat.format("COMPONENT[{0}] AVERAGE MEMORY SPENT : {1}K\n", entry.getKey(), new BigDecimal(entry.getValue()).divide(new BigDecimal(1024), 2, RoundingMode.HALF_UP)));
-			}
 			logStr.append("======================================================================================\n");
 			LOG.info(logStr.toString());
 		}catch(Exception e){