diff --git a/Bench4Q-Monitor-Sigar/src/main/java/org/bench4q/monitor/model/MonitorMain.java b/Bench4Q-Monitor-Sigar/src/main/java/org/bench4q/monitor/model/MonitorMain.java
index 7677a843..10e0fdd7 100644
--- a/Bench4Q-Monitor-Sigar/src/main/java/org/bench4q/monitor/model/MonitorMain.java
+++ b/Bench4Q-Monitor-Sigar/src/main/java/org/bench4q/monitor/model/MonitorMain.java
@@ -6,6 +6,7 @@ import java.util.Date;
 import java.util.List;
 import java.util.TimeZone;
 import java.util.concurrent.ExecutionException;
+import java.util.jar.Attributes.Name;
 
 import javax.xml.bind.annotation.XmlElement;
 import javax.xml.bind.annotation.XmlRootElement;
@@ -31,7 +32,8 @@ public class MonitorMain extends SampleModel {
 	private ProcessModel processModel;
 	@XmlElement(name = "touch_limit")
 	private boolean isTouchLimit;
-
+	@XmlElement(name = "reach_limit")
+	private boolean isReachLimit;
 	private SimpleDateFormat dateFormat = new SimpleDateFormat(
 			"yyyy-MM-dd-HH-mm-ss");
 
@@ -59,8 +61,42 @@ public class MonitorMain extends SampleModel {
 		System.out.println(System.currentTimeMillis() - startTime);
 	}
 
-	public MonitorMain(LimitModel limitModel) {
-		
+	public MonitorMain(LimitModel limitModel) throws SigarException {
+		dateFormat.setTimeZone(TimeZone.getTimeZone("Asia/Shanghai"));
+		this.date = dateFormat.format(new Date());
+		long startTime = System.currentTimeMillis();
+		List<Thread> threadList = new ArrayList<Thread>();
+		threadList.add(new Thread(new ProcessModel(this)));
+		threadList.add(new Thread(new PhysicalDiskModel(this)));
+		threadList.add(new Thread(new ProcessorModel(this)));
+		threadList.add(new Thread(new NetworkInterfaceModel(this)));
+		for (Thread thread : threadList)
+			thread.start();
+		memoryModel = new MemoryModel();
+		boolean threadIsAlive = true;
+		while (threadIsAlive) {
+			threadIsAlive = false;
+			for (Thread thread : threadList) {
+				if (thread.isAlive())
+					threadIsAlive = true;
+			}
+		}
+		this.isReachLimit = getLimitresult(limitModel);
+		System.out.println(System.currentTimeMillis() - startTime);
+	}
+
+	private boolean getLimitresult(LimitModel limitModel) throws SigarException {
+		//LimitableFieldsModel limitableFieldsModel = new LimitableFieldsModel();
+		boolean limitResult = false;
+		List<LimitModel.ParameterModel> list = limitModel.getParams();
+		for (int i = 0; i < list.size(); i++){
+			String name = list.get(i).getName();
+			double limit = list.get(i).getLimit();
+			if (name.equals("memoryUsedPercent"))
+				if (limit <= this.memoryModel.getMemoryUsedPercent())
+					limitResult = true;
+			}
+		return limitResult;
 	}
 
 	public void setProcesssModel(ProcessModel processModel) {