improve proxy performance

src/test/java/com/alibaba/druid/benckmark/sql/MySqlPerfMain_visitor.java

@@ -33,7 +33,7 @@ public class MySqlPerfMain_visitor {
 
         String sql = "SELECT ID, NAME, AGE FROM USER WHERE ID = ?";
 
-        for (int i = 0; i < 10; ++i) {
+        for (int i = 0; i < 5; ++i) {
             perfMySql(sql);
         }
     }
@@ -47,7 +47,7 @@ public class MySqlPerfMain_visitor {
         List<SQLStatement> statementList = parser.parseStatementList();
         
         long startMillis = System.currentTimeMillis();
-        for (int i = 0; i < 1000 * 100 * 1; ++i) {
+        for (int i = 0; i < 1000 * 1000 * 1; ++i) {
             execMySql(statementList);
         }
         long millis = System.currentTimeMillis() - startMillis;

src/test/java/com/alibaba/druid/bvt/filter/wall/MySqlWallTest1.java

@@ -29,22 +29,6 @@ import com.alibaba.druid.wall.WallUtils;
  * @see
  */
 public class MySqlWallTest1 extends TestCase {
-
-    /**
-     * @param name
-     */
-    public MySqlWallTest1(String name){
-        super(name);
-    }
-
-    protected void setUp() throws Exception {
-        super.setUp();
-    }
-
-    protected void tearDown() throws Exception {
-        super.tearDown();
-    }
-
     public void test_stuff() throws Exception {
         Assert.assertTrue(WallUtils.isValidateMySql(//
         "select count(*) from (select DATE_FORMAT(staydate,'%m月') as month,sum(a) as addnum,sum(q) as quitnum from (select staydate,1 as a,0 as q from add_person union all select quitdate,0 as a,1 as q from quit_person) t where  (DATE_FORMAT(staydate,'%Y')= ? )  group by DATE_FORMAT(staydate,'%Y-%m'))"));