diff --git a/lib/junit-benchmarks-0.7.0.jar b/lib/junit-benchmarks-0.7.2.jar
old mode 100644
new mode 100755
similarity index 50%
rename from lib/junit-benchmarks-0.7.0.jar
rename to lib/junit-benchmarks-0.7.2.jar
index bea0bf5..93aee13
Binary files a/lib/junit-benchmarks-0.7.0.jar and b/lib/junit-benchmarks-0.7.2.jar differ
diff --git a/test/zutil/benchmark/LoopBenchmark.java b/test/zutil/benchmark/LoopBenchmark.java
new file mode 100755
index 0000000..8e5300b
--- /dev/null
+++ b/test/zutil/benchmark/LoopBenchmark.java
@@ -0,0 +1,42 @@
+package zutil.benchmark;
+
+import com.carrotsearch.junitbenchmarks.BenchmarkRule;
+import org.junit.Rule;
+import org.junit.Test;
+import zutil.StringUtil;
+
+public class LoopBenchmark {
+    public static final int TEST_EXECUTIONS = 500;
+
+    @Rule
+    public BenchmarkRule benchmarkRun = new BenchmarkRule();
+
+
+    private int[] matrix  = new int[100_000];
+    private int[] matrix2 = new int[50_000];
+
+
+    @Test
+    public void oneLoop() {
+        for(int k=0; k<TEST_EXECUTIONS; k++) {
+            for (int i = 0; i < Math.max(matrix.length, matrix.length); i++) {
+                if (i < matrix.length)
+                    matrix[i] = i;
+                if (i < matrix2.length)
+                    matrix2[i] = i;
+            }
+        }
+    }
+
+    @Test
+    public void twoLoops(){
+        for(int k=0; k<TEST_EXECUTIONS; k++) {
+            for (int i = 0; i < matrix.length; i++) {
+                matrix[i] = i;
+            }
+            for (int j = 0; j < matrix2.length; j++) {
+                matrix2[j] = j;
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/test/zutil/benchmark/StringSplitBenchmark.java b/test/zutil/benchmark/StringSplitBenchmark.java
new file mode 100755
index 0000000..e627625
--- /dev/null
+++ b/test/zutil/benchmark/StringSplitBenchmark.java
@@ -0,0 +1,59 @@
+package zutil.benchmark;
+
+import com.carrotsearch.junitbenchmarks.BenchmarkOptions;
+import com.carrotsearch.junitbenchmarks.BenchmarkRule;
+import org.junit.Rule;
+import org.junit.Test;
+
+import java.util.ArrayList;
+import java.util.regex.Pattern;
+
+import static org.junit.Assert.assertEquals;
+
+/**
+ * Created by Ziver on 2016-07-07.
+ */
+public class StringSplitBenchmark {
+    public static final int TEST_EXECUTIONS = 200000;
+
+    @Rule
+    public BenchmarkRule benchmarkRun = new BenchmarkRule();
+
+    private static String delimiter = ",";
+    private static String str = "aaa,aaaaaa,aaaaaa,aa,a,a,a,bb,bbb,aaaaaaaaa,a,a,aaa";
+
+
+    @Test
+    public void stringSplit(){
+        for(int i=0; i<TEST_EXECUTIONS; i++)
+            assertSplit(str.split(delimiter));
+    }
+
+    public static Pattern pattern = Pattern.compile(delimiter);
+    @Test
+    public void patternSplit(){
+        for(int i=0; i<TEST_EXECUTIONS; i++)
+            assertSplit(pattern.split(str));
+    }
+
+    @Test
+    public void substring(){
+        for(int i=0; i<TEST_EXECUTIONS; i++) {
+            ArrayList<String> splitList = new ArrayList<>();
+            int from = 0, to = 0;
+            while (to >= 0) {
+                to = str.indexOf(delimiter, from + 1);
+                if (to < 0)
+                    splitList.add(str.substring(from));
+                else
+                    splitList.add(str.substring(from, to));
+                from = to;
+            }
+            assertSplit(splitList.toArray(new String[splitList.size()]));
+        }
+    }
+
+    public void assertSplit(String[] str){
+        assertEquals(13,str.length);
+    }
+}
diff --git a/test/zutil/parser/json/JSONSerializerBenchmark.java b/test/zutil/parser/json/JSONSerializerBenchmark.java
index 42810c7..61845f4 100755
--- a/test/zutil/parser/json/JSONSerializerBenchmark.java
+++ b/test/zutil/parser/json/JSONSerializerBenchmark.java
@@ -57,7 +57,7 @@ public class JSONSerializerBenchmark {
             TestClass targetObj = (TestClass) in.readObject();
             in.close();
 
-            assertEquals( sourceObj, targetObj );
+            TestClass.assertEquals( sourceObj, targetObj );
         }
     }
 
@@ -68,7 +68,7 @@ public class JSONSerializerBenchmark {
 
             TestClass targetObj = JSONSerializerTest.sendReceiveObject(sourceObj);
 
-            assertEquals( sourceObj, targetObj );
+            TestClass.assertEquals( sourceObj, targetObj );
         }
     }
 
diff --git a/test/zutil/parser/json/JSONSerializerTest.java b/test/zutil/parser/json/JSONSerializerTest.java
index 88a75f4..408fe8b 100755
--- a/test/zutil/parser/json/JSONSerializerTest.java
+++ b/test/zutil/parser/json/JSONSerializerTest.java
@@ -186,8 +186,6 @@ public class JSONSerializerTest{
 		out.close();
 		
 		String data = bout.toString();
-        System.out.println(data);
-        
         return data;
 	}