diff --git a/src/main/java/com/alibaba/druid/mock/MockConnection.java b/src/main/java/com/alibaba/druid/mock/MockConnection.java
index d07961ec98..386945d8dd 100644
--- a/src/main/java/com/alibaba/druid/mock/MockConnection.java
+++ b/src/main/java/com/alibaba/druid/mock/MockConnection.java
@@ -45,18 +45,29 @@ public class MockConnection implements Connection {
 
     private MockDriver driver;
 
-    public MockConnection(){
+    private Properties connectProperties;
 
+    public MockConnection(){
+        this(null);
     }
 
     public MockConnection(MockDriver driver){
+        this(driver, new Properties());
+    }
+
+    public MockConnection(MockDriver driver, Properties connectProperties){
         this.driver = driver;
+        this.connectProperties = connectProperties;
     }
 
     public MockDriver getDriver() {
         return driver;
     }
 
+    public Properties getConnectProperties() {
+        return connectProperties;
+    }
+
     public void setDriver(MockDriver driver) {
         this.driver = driver;
     }
diff --git a/src/main/java/com/alibaba/druid/mock/MockDriver.java b/src/main/java/com/alibaba/druid/mock/MockDriver.java
index ca2afa6e73..4c0778b7d2 100644
--- a/src/main/java/com/alibaba/druid/mock/MockDriver.java
+++ b/src/main/java/com/alibaba/druid/mock/MockDriver.java
@@ -87,7 +87,19 @@ public class MockDriver implements Driver {
             return null;
         }
 
-        MockConnection conn = new MockConnection(this);
+        if (info != null) {
+            Object val = info.get("connectSleep");
+            if (val != null) {
+                long millis = Long.parseLong(val.toString());
+                try {
+                    Thread.sleep(millis);
+                } catch (InterruptedException e) {
+                    // skip
+                }
+            }
+        }
+
+        MockConnection conn = new MockConnection(this, info);
 
         if (url == null) {
             connectCount.incrementAndGet();
@@ -143,6 +155,23 @@ public class MockDriver implements Driver {
     }
 
     protected ResultSet executeQuery(MockStatement stmt, String sql) throws SQLException {
+        MockConnection conn = stmt.getMockConnection();
+
+        if (conn != null) {
+            if (conn.getConnectProperties() != null) {
+                Object propertyValue = conn.getConnectProperties().get("executeSleep");
+
+                if (propertyValue != null) {
+                    long millis = Long.parseLong(propertyValue.toString());
+                    try {
+                        Thread.sleep(millis);
+                    } catch (InterruptedException e) {
+                        // skip
+                    }
+                }
+            }
+        }
+
         if ("SELECT value FROM _int_1000_".equalsIgnoreCase(sql)) {
             MockResultSet rs = new MockResultSet(stmt);
 
diff --git a/src/main/java/com/alibaba/druid/mock/MockPreparedStatement.java b/src/main/java/com/alibaba/druid/mock/MockPreparedStatement.java
index 15f90b6b49..ae29e4cce7 100644
--- a/src/main/java/com/alibaba/druid/mock/MockPreparedStatement.java
+++ b/src/main/java/com/alibaba/druid/mock/MockPreparedStatement.java
@@ -60,8 +60,8 @@ public class MockPreparedStatement extends MockStatement implements PreparedStat
 
     @Override
     public ResultSet executeQuery() throws SQLException {
-        if (fakeConnection != null && fakeConnection.getDriver() != null) {
-            return fakeConnection.getDriver().createResultSet(this);
+        if (mockConnection != null && mockConnection.getDriver() != null) {
+            return mockConnection.getDriver().createResultSet(this);
         }
 
         return new MockResultSet(this);
diff --git a/src/main/java/com/alibaba/druid/mock/MockStatement.java b/src/main/java/com/alibaba/druid/mock/MockStatement.java
index b1fd8a28b2..3ba41e1ca3 100644
--- a/src/main/java/com/alibaba/druid/mock/MockStatement.java
+++ b/src/main/java/com/alibaba/druid/mock/MockStatement.java
@@ -26,23 +26,23 @@ public class MockStatement implements Statement {
     public final static String ERROR_SQL = "THROW ERROR";
 
     private Connection         connection;
-    protected MockConnection   fakeConnection;
+    protected MockConnection   mockConnection;
 
     public MockStatement(Connection connection){
         super();
         this.connection = connection;
 
         if (connection instanceof MockConnection) {
-            fakeConnection = (MockConnection) connection;
+            mockConnection = (MockConnection) connection;
         }
     }
 
-    public MockConnection getFakeConnection() {
-        return fakeConnection;
+    public MockConnection getMockConnection() {
+        return mockConnection;
     }
 
     public void setFakeConnection(MockConnection fakeConnection) {
-        this.fakeConnection = fakeConnection;
+        this.mockConnection = fakeConnection;
         this.connection = fakeConnection;
     }
 
@@ -58,8 +58,8 @@ public class MockStatement implements Statement {
 
     @Override
     public ResultSet executeQuery(String sql) throws SQLException {
-        if (fakeConnection != null && fakeConnection.getDriver() != null) {
-            return fakeConnection.getDriver().executeQuery(this, sql);
+        if (mockConnection != null && mockConnection.getDriver() != null) {
+            return mockConnection.getDriver().executeQuery(this, sql);
         }
 
         return new MockResultSet(this);
diff --git a/src/test/java/com/alibaba/druid/pool/benckmark/Case3.java b/src/test/java/com/alibaba/druid/pool/benckmark/Case3.java
index 8905f27111..e4fbc16a19 100644
--- a/src/test/java/com/alibaba/druid/pool/benckmark/Case3.java
+++ b/src/test/java/com/alibaba/druid/pool/benckmark/Case3.java
@@ -29,20 +29,21 @@ public class Case3 extends TestCase {
     private String  validationQuery      = "SELECT 1"; // "SELECT 1";
     private int     threadCount          = 10;
     private int     TEST_COUNT           = 3;
-    final int       LOOP_COUNT           = 1000 * 10;
+    final int       LOOP_COUNT           = 1000 * 1;
     private boolean testOnBorrow         = false;
     private String  connectionProperties = "";        // "bigStringTryClob=true;clientEncoding=GBK;defaultRowPrefetch=50;serverEncoding=ISO-8859-1";
     private String  sql                  = "SELECT 1";
 
     protected void setUp() throws Exception {
-        // jdbcUrl = "jdbc:fake:dragoon_v25masterdb";
-        // user = "dragoon25";
-        // password = "dragoon25";
-        // driverClass = "com.alibaba.druid.mock.MockDriver";
-
-        jdbcUrl = "jdbc:mysql://10.20.153.104:3306/druid2";
-        user = "root";
-        password = "root";
+        jdbcUrl = "jdbc:fake:dragoon_v25masterdb";
+        user = "dragoon25";
+        password = "dragoon25";
+        driverClass = "com.alibaba.druid.mock.MockDriver";
+        connectionProperties = "connectSleep=3;executeSleep=1";
+        //
+        // jdbcUrl = "jdbc:mysql://10.20.153.104:3306/druid2";
+        // user = "root";
+        // password = "root";
     }
 
     public void test_perf() throws Exception {
diff --git a/src/test/java/com/alibaba/druid/pool/ui/DruidDataSourceUIManager.java b/src/test/java/com/alibaba/druid/pool/ui/DruidDataSourceUIManager.java
index 07744c3fb8..7678d8211c 100644
--- a/src/test/java/com/alibaba/druid/pool/ui/DruidDataSourceUIManager.java
+++ b/src/test/java/com/alibaba/druid/pool/ui/DruidDataSourceUIManager.java
@@ -533,7 +533,7 @@ public class DruidDataSourceUIManager extends JFrame {
         Runnable task = new Runnable() {
 
             public void run() {
-                final int threadCount = 40;
+                final int threadCount = 10;
                 final int LOOP_COUNT = 1000 * 1000;
                 final String sql = "SELECT 1";
                 final CountDownLatch startLatch = new CountDownLatch(1);