for ( int n=0; n<20; n++ ) { Session s = openSession(); s.delete("from Simple"); s.flush(); Simple[] simples = new Simple[n]; Serializable[] ids = new Serializable[n]; for ( int i=0; i<n; i++ ) { simples[i] = new Simple(); simples[i].init(); simples[i].setCount(i); ids[i] = new Long(i); s.save(simples[i], ids[i]); } s.flush(); s.connection().commit(); s.close(); //allow cache to settle s = openSession(); hibernate(s, simples, ids, n, "h0"); s.close(); Connection c = cp.getConnection(); directJDBC( c, simples, ids, n, "j0" ); cp.closeConnection(c); s = openSession(); hibernate(s, simples, ids, n, "h0"); s.close(); c = cp.getConnection(); directJDBC( c, simples, ids, n, "j0" ); cp.closeConnection(c); //Now do timings int N=30; long time = System.currentTimeMillis(); for (int i=0; i<N; i++) { s = openSession(); hibernate(s, simples, ids, n, "h1"); s.close(); } hiber += System.currentTimeMillis() - time; time = System.currentTimeMillis(); for (int i=0; i<N; i++) { c = cp.getConnection(); directJDBC( c, simples, ids, n, "j1" ); cp.closeConnection(c); } jdbc += System.currentTimeMillis() - time; time = System.currentTimeMillis(); for (int i=0; i<N; i++) { s = openSession(); hibernate(s, simples, ids, n, "h2"); s.close(); } hiber += System.currentTimeMillis() - time; time = System.currentTimeMillis(); for (int i=0; i<N; i++) { c = cp.getConnection(); directJDBC( c, simples, ids, n, "j2" ); cp.closeConnection(c); } jdbc += System.currentTimeMillis() - time; time = System.currentTimeMillis(); for (int i=0; i<N; i++) { s = openSession(); hibernate(s, simples, ids, n, "h1"); s.close(); } hiber += System.currentTimeMillis() - time; time = System.currentTimeMillis(); for (int i=0; i<N; i++) { c = cp.getConnection(); directJDBC( c, simples, ids, n, "j1" ); cp.closeConnection(c); } jdbc += System.currentTimeMillis() - time; }
ConnectionProvider cp = ConnectionProviderFactory.newConnectionProvider( Environment.getProperties() ); long hiber=0; long jdbc=0; for ( int n=0; n<20; n++ ) { Simple[] simples = new Simple[n]; Serializable[] ids = new Serializable[n]; for ( int i=0; i<n; i++ ) { simples[i] = new Simple(); simples[i].init(); simples[i].setCount(i); ids[i] = new Long(i); } //allow cache to settle Session s = openSession(); hibernate(s, simples, ids, n, "h0"); s.close(); Connection c = cp.getConnection(); directJDBC( c, simples, ids, n, "j0" ); cp.closeConnection(c); s = openSession(); hibernate(s, simples, ids, n, "h0"); s.close(); c = cp.getConnection(); directJDBC( c, simples, ids, n, "j0" ); cp.closeConnection(c); //Now do timings int N=30; long time = System.currentTimeMillis(); for (int i=0; i<N; i++) { s = openSession(); hibernate(s, simples, ids, n, "h1"); s.close(); } hiber += System.currentTimeMillis() - time; time = System.currentTimeMillis(); for (int i=0; i<N; i++) { c = cp.getConnection(); directJDBC( c, simples, ids, n, "j1" ); cp.closeConnection(c); } jdbc += System.currentTimeMillis() - time; time = System.currentTimeMillis(); for (int i=0; i<N; i++) { s = openSession(); hibernate(s, simples, ids, n, "h2"); s.close(); } hiber += System.currentTimeMillis() - time; time = System.currentTimeMillis(); for (int i=0; i<N; i++) { c = cp.getConnection(); directJDBC( c, simples, ids, n, "j2" ); cp.closeConnection(c); } jdbc += System.currentTimeMillis() - time; time = System.currentTimeMillis(); for (int i=0; i<N; i++) { s = openSession(); hibernate(s, simples, ids, n, "h1"); s.close(); } hiber += System.currentTimeMillis() - time; time = System.currentTimeMillis(); for (int i=0; i<N; i++) { c = cp.getConnection(); directJDBC( c, simples, ids, n, "j1" ); cp.closeConnection(c); } jdbc += System.currentTimeMillis() - time; } System.out.println( "Hibernate: " + hiber + "ms / Direct JDBC: " + jdbc + "ms = Ratio: " + ( (float) hiber )/jdbc ); cp.close(); System.gc();
Clone fragments detected by clone detection tool
File path: /hibernate-distribution-3.3.2.GA/project/testsuite/src/test/perf/org/hibernate/test/perf/NewerPerformanceTest.java File path: /hibernate-distribution-3.3.2.GA/project/testsuite/src/test/perf/org/hibernate/test/perf/PerformanceTest.java
Method name: void testMany() Method name: void testMany()
Number of AST nodes: 64 Number of AST nodes: 63
1
for ( int n=0; n<20; n++ ) {
2
			Session s = openSession();
1
ConnectionProvider cp = ConnectionProviderFactory.newConnectionProvider( Environment.getProperties() );
3
	
4
		s.delete("from Simple");
2
		
5
			s.flush();
3
long hiber=0;
4
		long jdbc=0;
5
		for ( int n=0; n<20; n++ ) {
6
			Simple[] simples = new Simple[n];
6
			Simple[] simples = new Simple[n];
7
			Serializable[] ids = new Serializable[n];
7
			Serializable[] ids = new Serializable[n];
8
			for ( int i=0; i<n; i++ ) {
8
			for ( int i=0; i<n; i++ ) {
9
				simples[i] = new Simple();
9
				simples[i] = new Simple();
10
				simples[i].init();
10
				simples[i].init();
11
				simples[i].setCount(i);
11
				simples[i].setCount(i);
12
				ids[i] = new Long(i);
12
				ids[i] = new Long(i);
13
				s.save(simples[i], ids[i]);
13
			
14
			}
15
			s.flush();
16
			s.connection().commit();
17
			s.close();
14
}
18
			//allow cache to settle
15
			//allow cache to settle
19
			s = openSession();
16
			Session s = openSession();
20
			hibernate(s, simples, ids, n, "h0");
17
			hibernate(s, simples, ids, n, "h0");
21
			s.close();
18
			s.close();
22
			Connection c = cp.getConnection();
19
			Connection c = cp.getConnection();
23
			directJDBC( c, simples, ids, n, "j0" );
20
			directJDBC( c, simples, ids, n, "j0" );
24
			cp.closeConnection(c);
21
			cp.closeConnection(c);
25
			s = openSession();
22
			s = openSession();
26
			hibernate(s, simples, ids, n, "h0");
23
			hibernate(s, simples, ids, n, "h0");
27
			s.close();
24
			s.close();
28
			c = cp.getConnection();
25
			c = cp.getConnection();
29
			directJDBC( c, simples, ids, n, "j0" );
26
			directJDBC( c, simples, ids, n, "j0" );
30
			cp.closeConnection(c);
27
			cp.closeConnection(c);
31
			//Now do timings
28
			//Now do timings
32
			int N=30;
29
			int N=30;
33
			long time = System.currentTimeMillis();
30
			long time = System.currentTimeMillis();
34
			for (int i=0; i<N; i++) {
31
			for (int i=0; i<N; i++) {
35
				s = openSession();
32
				s = openSession();
36
				hibernate(s, simples, ids, n, "h1");
33
				hibernate(s, simples, ids, n, "h1");
37
				s.close();
34
				s.close();
38
			}
35
			}
39
			hiber += System.currentTimeMillis() - time;
36
			hiber += System.currentTimeMillis() - time;
40
			time = System.currentTimeMillis();
37
			time = System.currentTimeMillis();
41
			for (int i=0; i<N; i++) {
38
			for (int i=0; i<N; i++) {
42
				c = cp.getConnection();
39
				c = cp.getConnection();
43
				directJDBC( c, simples, ids, n, "j1" );
40
				directJDBC( c, simples, ids, n, "j1" );
44
				cp.closeConnection(c);
41
				cp.closeConnection(c);
45
			}
42
			}
46
			jdbc += System.currentTimeMillis() - time;
43
			jdbc += System.currentTimeMillis() - time;
47
			time = System.currentTimeMillis();
44
			time = System.currentTimeMillis();
48
			for (int i=0; i<N; i++) {
45
			for (int i=0; i<N; i++) {
49
				s = openSession();
46
				s = openSession();
50
				hibernate(s, simples, ids, n, "h2");
47
				hibernate(s, simples, ids, n, "h2");
51
				s.close();
48
				s.close();
52
			}
49
			}
53
			hiber += System.currentTimeMillis() - time;
50
			hiber += System.currentTimeMillis() - time;
54
			time = System.currentTimeMillis();
51
			time = System.currentTimeMillis();
55
			for (int i=0; i<N; i++) {
52
			for (int i=0; i<N; i++) {
56
				c = cp.getConnection();
53
				c = cp.getConnection();
57
				directJDBC( c, simples, ids, n, "j2" );
54
				directJDBC( c, simples, ids, n, "j2" );
58
				cp.closeConnection(c);
55
				cp.closeConnection(c);
59
			}
56
			}
60
			jdbc += System.currentTimeMillis() - time;
57
			jdbc += System.currentTimeMillis() - time;
61
			time = System.currentTimeMillis();
58
			time = System.currentTimeMillis();
62
			for (int i=0; i<N; i++) {
59
			for (int i=0; i<N; i++) {
63
				s = openSession();
60
				s = openSession();
64
				hibernate(s, simples, ids, n, "h1");
61
				hibernate(s, simples, ids, n, "h1");
65
				s.close();
62
				s.close();
66
			}
63
			}
67
			hiber += System.currentTimeMillis() - time;
64
			hiber += System.currentTimeMillis() - time;
68
			time = System.currentTimeMillis();
65
			time = System.currentTimeMillis();
69
			for (int i=0; i<N; i++) {
66
			for (int i=0; i<N; i++) {
70
				c = cp.getConnection();
67
				c = cp.getConnection();
71
				directJDBC( c, simples, ids, n, "j1" );
68
				directJDBC( c, simples, ids, n, "j1" );
72
				cp.closeConnection(c);
69
				cp.closeConnection(c);
73
			}
70
			}
74
			jdbc += System.currentTimeMillis() - time;
71
			jdbc += System.currentTimeMillis() - time;
75
		}
72
		}
73
		System.out.println( "Hibernate: " + hiber + "ms / Direct JDBC: " + jdbc + "ms = Ratio: " + ( (float) hiber )/jdbc );
74
		cp.close();
75
		System.gc();
Summary
Number of common nesting structure subtrees1
Number of refactorable cases0
Number of non-refactorable cases1
Time elapsed for finding largest common nesting structure subtrees (ms)5.1
Clones locationClones are in different classes having the same super class
Number of node comparisons1497
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements57
    Number of unmapped statements in the first code fragment7
    Number of unmapped statements in the second code fragment6
    Time elapsed for statement mapping (ms)1563.2
    Clone typeType 3
    Mapped Statements
    ID Statement ID Statement
                                                                                                                                                                                                                
    1
    ConnectionProvider cp = ConnectionProviderFactory.newConnectionProvider(Environment.getProperties());
                                    
    2
    long hiber = 0;
                                  
    3
    long jdbc = 0;
    4
    for (int n = 0; n < 20; n++)
    4
    for (int n = 0; n < 20; n++)
    5
    Session s = openSession();
    12
    Session s = openSession();
    6
    s.delete("from Simple");
    6
    s.delete("from Simple");
    Preondition Violations
    Unmatched statement s.delete("from Simple"); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    Unmatched statement s.delete("from Simple"); cannot be moved before or after the extracted code, because it throws exception(s) that should be caught by a try block that will be extracted
                                                          
    7
    s.flush();
    7
    s.flush();
    Preondition Violations
    Unmatched statement s.flush(); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    Unmatched statement s.flush(); cannot be moved before or after the extracted code, because it throws exception(s) that should be caught by a try block that will be extracted
                              
    8
    Simple[] simples = new Simple[n];
    5
    Simple[] simples = new Simple[n];
    9
    Serializable[] ids = new Serializable[n];
    6
    Serializable[] ids = new Serializable[n];
    10
    for (int i = 0; i < n; i++)
    7
    for (int i = 0; i < n; i++)
    11
    simples[i] = new Simple();
    8
    simples[i] = new Simple();
    12
    simples[i].init();
    9
    simples[i].init();
    13
    simples[i].setCount(i);
    10
    simples[i].setCount(i);
    14
    ids[i] = new Long(i);
    11
    ids[i] = new Long(i);
    15
    s.save(simples[i], ids[i]);
    15
    s.save(simples[i], ids[i]);
    Preondition Violations
    Unmatched statement s.save(simples[i],ids[i]); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    Unmatched statement s.save(simples[i],ids[i]); cannot be moved before or after the extracted code, because it throws exception(s) that should be caught by a try block that will be extracted
                                                                
    16
    s.flush();
    16
    s.flush();
    Preondition Violations
    Unmatched statement s.flush(); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    Unmatched statement s.flush(); cannot be moved before or after the extracted code, because it throws exception(s) that should be caught by a try block that will be extracted
                                
    17
    s.connection().commit();
    17
    s.connection().commit();
    Preondition Violations
    Unmatched statement s.connection().commit(); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    Unmatched statement s.connection().commit(); cannot be moved before or after the extracted code, because it throws exception(s) that should be caught by a try block that will be extracted
                                                            
    18
    s.close();
    14
    s.close();
    19
    s = openSession();
    19
    s = openSession();
    Preondition Violations
    Unmatched statement s=openSession(); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    Unmatched statement s=openSession(); cannot be moved before or after the extracted code, because it throws exception(s) that should be caught by a try block that will be extracted
                                            
    20
    hibernate(s, simples, ids, n, "h0");
    13
    hibernate(s, simples, ids, n, "h0");
    21
    s.close();
    21
    s.close();
    Preondition Violations
    Unmatched statement s.close(); cannot be moved before or after the extracted code, because it throws exception(s) that should be caught by a try block that will be extracted
                                
    22
    Connection c = cp.getConnection();
    15
    Connection c = cp.getConnection();
    23
    directJDBC(c, simples, ids, n, "j0");
    22
    directJDBC(c, simples, ids, n, "j0");
    24
    cp.closeConnection(c);
    17
    cp.closeConnection(c);
    25
    s = openSession();
    18
    s = openSession();
    26
    hibernate(s, simples, ids, n, "h0");
    19
    hibernate(s, simples, ids, n, "h0");
    27
    s.close();
    20
    s.close();
    28
    c = cp.getConnection();
    21
    c = cp.getConnection();
    29
    directJDBC(c, simples, ids, n, "j0");
    16
    directJDBC(c, simples, ids, n, "j0");
    30
    cp.closeConnection(c);
    23
    cp.closeConnection(c);
    31
    int N = 30;
    24
    int N = 30;
    32
    long time = System.currentTimeMillis();
    25
    long time = System.currentTimeMillis();
    33
    for (int i = 0; i < N; i++)
    26
    for (int i = 0; i < N; i++)
    34
    s = openSession();
    27
    s = openSession();
    35
    hibernate(s, simples, ids, n, "h1");
    28
    hibernate(s, simples, ids, n, "h1");
    36
    s.close();
    29
    s.close();
    37
    hiber += System.currentTimeMillis() - time;
    30
    hiber += System.currentTimeMillis() - time;
    38
    time = System.currentTimeMillis();
    31
    time = System.currentTimeMillis();
    39
    for (int i = 0; i < N; i++)
    32
    for (int i = 0; i < N; i++)
    40
    c = cp.getConnection();
    33
    c = cp.getConnection();
    41
    directJDBC(c, simples, ids, n, "j1");
    34
    directJDBC(c, simples, ids, n, "j1");
    42
    cp.closeConnection(c);
    35
    cp.closeConnection(c);
    43
    jdbc += System.currentTimeMillis() - time;
    36
    jdbc += System.currentTimeMillis() - time;
    44
    time = System.currentTimeMillis();
    37
    time = System.currentTimeMillis();
    45
    for (int i = 0; i < N; i++)
    38
    for (int i = 0; i < N; i++)
    46
    s = openSession();
    39
    s = openSession();
    47
    hibernate(s, simples, ids, n, "h2");
    40
    hibernate(s, simples, ids, n, "h2");
    48
    s.close();
    41
    s.close();
    49
    hiber += System.currentTimeMillis() - time;
    42
    hiber += System.currentTimeMillis() - time;
    50
    time = System.currentTimeMillis();
    43
    time = System.currentTimeMillis();
    51
    for (int i = 0; i < N; i++)
    44
    for (int i = 0; i < N; i++)
    52
    c = cp.getConnection();
    45
    c = cp.getConnection();
    53
    directJDBC(c, simples, ids, n, "j2");
    46
    directJDBC(c, simples, ids, n, "j2");
    54
    cp.closeConnection(c);
    47
    cp.closeConnection(c);
    55
    jdbc += System.currentTimeMillis() - time;
    48
    jdbc += System.currentTimeMillis() - time;
    56
    time = System.currentTimeMillis();
    49
    time = System.currentTimeMillis();
    57
    for (int i = 0; i < N; i++)
    50
    for (int i = 0; i < N; i++)
    58
    s = openSession();
    51
    s = openSession();
    59
    hibernate(s, simples, ids, n, "h1");
    52
    hibernate(s, simples, ids, n, "h1");
    60
    s.close();
    53
    s.close();
    61
    hiber += System.currentTimeMillis() - time;
    54
    hiber += System.currentTimeMillis() - time;
    62
    time = System.currentTimeMillis();
    55
    time = System.currentTimeMillis();
    63
    for (int i = 0; i < N; i++)
    56
    for (int i = 0; i < N; i++)
    64
    c = cp.getConnection();
    57
    c = cp.getConnection();
    65
    directJDBC(c, simples, ids, n, "j1");
    58
    directJDBC(c, simples, ids, n, "j1");
    66
    cp.closeConnection(c);
    59
    cp.closeConnection(c);
    67
    jdbc += System.currentTimeMillis() - time;
    60
    jdbc += System.currentTimeMillis() - time;
                                                                                                                                                                                                                                        
    61
    System.out.println("Hibernate: " + hiber + "ms / Direct JDBC: " + jdbc + "ms = Ratio: " + ((float)hiber) / jdbc);
    Preondition Violations
    Unmatched statement System.out.println("Hibernate: " + hiber + "ms / Direct JDBC: "+ jdbc+ "ms = Ratio: "+ ((float)hiber) / jdbc); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    61
    System.out.println("Hibernate: " + hiber + "ms / Direct JDBC: " + jdbc + "ms = Ratio: " + ((float)hiber) / jdbc);
                                  
    62
    cp.close();
                                    
    63
    System.gc();
    Precondition Violations (15)
    Row Violation
    1Unmatched statement s.delete("from Simple"); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    2Unmatched statement s.delete("from Simple"); cannot be moved before or after the extracted code, because it throws exception(s) that should be caught by a try block that will be extracted
    3Unmatched statement s.flush(); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    4Unmatched statement s.flush(); cannot be moved before or after the extracted code, because it throws exception(s) that should be caught by a try block that will be extracted
    5Unmatched statement s.save(simples[i],ids[i]); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    6Unmatched statement s.save(simples[i],ids[i]); cannot be moved before or after the extracted code, because it throws exception(s) that should be caught by a try block that will be extracted
    7Unmatched statement s.flush(); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    8Unmatched statement s.flush(); cannot be moved before or after the extracted code, because it throws exception(s) that should be caught by a try block that will be extracted
    9Unmatched statement s.connection().commit(); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    10Unmatched statement s.connection().commit(); cannot be moved before or after the extracted code, because it throws exception(s) that should be caught by a try block that will be extracted
    11Unmatched statement s=openSession(); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    12Unmatched statement s=openSession(); cannot be moved before or after the extracted code, because it throws exception(s) that should be caught by a try block that will be extracted
    13Unmatched statement s.close(); cannot be moved before or after the extracted code, because it throws exception(s) that should be caught by a try block that will be extracted
    14Unmatched statement System.out.println("Hibernate: " + hiber + "ms / Direct JDBC: "+ jdbc+ "ms = Ratio: "+ ((float)hiber) / jdbc); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    15Clone fragment #1 returns variables s, hiber, jdbc , while Clone fragment #2 returns variables