diff --git a/composer.json b/composer.json
index ee23d02d..48248e36 100644
--- a/composer.json
+++ b/composer.json
@@ -3,7 +3,7 @@
     "description": "JVM emulator by PHP",
     "type": "library",
     "license": "MIT",
-    "version": "0.0.6.4-dev",
+    "version": "0.0.6.5-dev",
     "authors": [
         {
             "name": "memory"
@@ -17,7 +17,8 @@
         "php-java/java-util-package": "*",
         "php-java/java-io-package": "*",
         "php-java/java-net-package": "*",
-        "php-java/java-nio-package": "*"
+        "php-java/java-nio-package": "*",
+        "gabrielelana/byte-units": "dev-master"
     },
     "autoload": {
         "psr-4": {
diff --git a/src/Core/JVM/Cache/Cache.php b/src/Core/JVM/Cache/Cache.php
new file mode 100644
index 00000000..73cbbea0
--- /dev/null
+++ b/src/Core/JVM/Cache/Cache.php
@@ -0,0 +1,15 @@
+<?php
+namespace PHPJava\Core\JVM\Cache;
+
+class Cache
+{
+    private $items = [];
+
+    public function fetchOrPush(string $key, callable $pushFunction, ...$parameters)
+    {
+        if (isset($this->items[$key])) {
+            return $this->items[$key];
+        }
+        return $this->items[$key] = $pushFunction(...$parameters);
+    }
+}
diff --git a/src/Core/JVM/Cache/HeapCache.php b/src/Core/JVM/Cache/HeapCache.php
new file mode 100644
index 00000000..626eaf8d
--- /dev/null
+++ b/src/Core/JVM/Cache/HeapCache.php
@@ -0,0 +1,6 @@
+<?php
+namespace PHPJava\Core\JVM\Cache;
+
+class HeapCache extends Cache
+{
+}
diff --git a/src/Core/JVM/Cache/OperationCache.php b/src/Core/JVM/Cache/OperationCache.php
new file mode 100644
index 00000000..8c2468b8
--- /dev/null
+++ b/src/Core/JVM/Cache/OperationCache.php
@@ -0,0 +1,7 @@
+<?php
+namespace PHPJava\Core\JVM\Cache;
+
+class OperationCache extends Cache
+{
+
+}
diff --git a/src/Core/JVM/Invoker/Invokable.php b/src/Core/JVM/Invoker/Invokable.php
index 070e17be..09fb1d17 100644
--- a/src/Core/JVM/Invoker/Invokable.php
+++ b/src/Core/JVM/Invoker/Invokable.php
@@ -1,10 +1,12 @@
 <?php
 namespace PHPJava\Core\JVM\Invoker;
 
+use ByteUnits\Metric;
 use Monolog\Handler\StreamHandler;
 use Monolog\Logger;
 use PHPJava\Core\JavaClass;
 use PHPJava\Core\JavaClassInvoker;
+use PHPJava\Core\JVM\Cache\OperationCache;
 use PHPJava\Core\JVM\FlexibleMethod;
 use PHPJava\Core\JVM\Parameters\GlobalOptions;
 use PHPJava\Core\JVM\Stream\BinaryReader;
@@ -218,6 +220,17 @@ function ($item) {
             $localStorage
         );
 
+        $this->debugTool->getLogger()->debug(
+            vsprintf(
+                'Used Memory: %s, Used Memory Peak: %s',
+                [
+                    Metric::bytes(memory_get_usage())->format(),
+                    Metric::bytes(memory_get_peak_usage())->format(),
+                ]
+            )
+        );
+
+        $operationCache = new OperationCache();
         while ($reader->getOffset() < $codeAttribute->getOpCodeLength()) {
             if (++$executedCounter > ($this->options['max_stack_exceeded'] ?? GlobalOptions::get('max_stack_exceeded') ?? Runtime::MAX_STACK_EXCEEDED)) {
                 throw new RuntimeException(
@@ -248,6 +261,16 @@ function ($item) {
                 $debugTraces['mnemonic_indexes'][] = $pointer;
             }
 
+            $this->debugTool->getLogger()->debug(
+                vsprintf(
+                    'Used Memory: %s, Used Memory Peak: %s',
+                    [
+                        Metric::bytes(memory_get_usage())->format(),
+                        Metric::bytes(memory_get_peak_usage())->format(),
+                    ]
+                )
+            );
+
             $this->debugTool->getLogger()->debug(
                 vsprintf(
                     'OpCode: 0x%02X, Mnemonic: %s, Stacks: %d, PC: %d',
@@ -274,17 +297,23 @@ function ($item) {
             /**
              * @var OperationInterface|Accumulator|ConstantPool $executor
              */
-            $executor = new $fullName();
-            $executor->setConstantPool($currentConstantPool);
-            $executor->setParameters(
-                $method->getAttributes(),
-                $this->javaClassInvoker,
-                $reader,
-                $localStorage,
-                $stacks,
-                $pointer
+            $executor = $operationCache->fetchOrPush(
+                $fullName,
+                function () use ($fullName) {
+                    return new $fullName();
+                }
             );
-            $returnValue = $executor->execute();
+            $returnValue = $executor
+                ->setConstantPool($currentConstantPool)
+                ->setParameters(
+                    $method->getAttributes(),
+                    $this->javaClassInvoker,
+                    $reader,
+                    $localStorage,
+                    $stacks,
+                    $pointer
+                )
+                ->execute();
 
             $afterTrigger = $this->options['operations']['injections']['after'] ?? GlobalOptions::get('operations.injections.after');
             if (is_callable($afterTrigger)) {
@@ -298,13 +327,17 @@ function ($item) {
             }
 
             if ($returnValue !== null) {
-                $this->javaClassInvoker->getJavaClass()->appendDebug($debugTraces);
+                if ($isEnabledTrace) {
+                    $this->javaClassInvoker->getJavaClass()->appendDebug($debugTraces);
+                }
                 $this->debugTool->getLogger()->info('Finish operations: ' . $methodBeautified);
                 return $returnValue;
             }
         }
 
-        $this->javaClassInvoker->getJavaClass()->appendDebug($debugTraces);
+        if ($isEnabledTrace) {
+            $this->javaClassInvoker->getJavaClass()->appendDebug($debugTraces);
+        }
         $this->debugTool->getLogger()->info('Finish operations: ' . $methodBeautified);
         return null;
     }
diff --git a/src/Core/JVM/Parameters/GlobalOptions.php b/src/Core/JVM/Parameters/GlobalOptions.php
index bcd7cc2a..92860f3d 100644
--- a/src/Core/JVM/Parameters/GlobalOptions.php
+++ b/src/Core/JVM/Parameters/GlobalOptions.php
@@ -25,7 +25,7 @@ public static function get($name)
         return $ref;
     }
 
-    public function reset()
+    public static function reset()
     {
         static::$settings = [];
     }
diff --git a/src/Core/JVM/Parameters/Runtime.php b/src/Core/JVM/Parameters/Runtime.php
index 9d1fa198..98b45679 100644
--- a/src/Core/JVM/Parameters/Runtime.php
+++ b/src/Core/JVM/Parameters/Runtime.php
@@ -13,7 +13,7 @@ final class Runtime
     const PRELOAD = false;
     const DRY_RUN_ATTRIBUTE = false;
 
-    const OPERATIONS_ENABLE_TRACE = true;
+    const OPERATIONS_ENABLE_TRACE = false;
     const OPERATIONS_TEMPORARY_CODE_STREAM = 'php://memory';
 
     const VALIDATION_METHOD_ARGUMENTS_COUNT_ONLY = false;
diff --git a/src/Core/JavaClass.php b/src/Core/JavaClass.php
index 66331157..93d46272 100644
--- a/src/Core/JavaClass.php
+++ b/src/Core/JavaClass.php
@@ -6,8 +6,11 @@
 use PHPJava\Core\JVM\ActiveInterface;
 use PHPJava\Core\JVM\ActiveMethods;
 use PHPJava\Core\JVM\ConstantPool;
+use PHPJava\Core\JVM\Parameters\GlobalOptions;
+use PHPJava\Core\JVM\Parameters\Runtime;
 use PHPJava\Core\JVM\Validations\MagicByte;
 use PHPJava\Core\Stream\Reader\ReaderInterface;
+use PHPJava\Exceptions\DebugTraceIsDisabledException;
 use PHPJava\Exceptions\ValidatorException;
 use PHPJava\Kernel\Attributes\AttributeInterface;
 use PHPJava\Kernel\Attributes\InnerClassesAttribute;
@@ -302,6 +305,12 @@ public function getSuperClass()
 
     public function debug(): void
     {
+        $isEnabledTrace = $this->options['operations']['enable_trace'] ?? GlobalOptions::get('operations.enable_trace') ?? Runtime::OPERATIONS_ENABLE_TRACE;
+        if (!$isEnabledTrace) {
+            throw new DebugTraceIsDisabledException(
+                "Debug trace is disabled. If you want to show debug trace then enable to `enable_trace` option."
+            );
+        }
         $cpInfo = $this->getConstantPool();
         foreach ($this->debugTraces as $debugTraces) {
             printf("[method]\n");
diff --git a/src/Core/PHPJava.php b/src/Core/PHPJava.php
index 4d42bf86..aad57825 100644
--- a/src/Core/PHPJava.php
+++ b/src/Core/PHPJava.php
@@ -12,5 +12,5 @@ final class PHPJava
     /**
      * As same as composer version.
      */
-    const VERSION = 0x000064;
+    const VERSION = 0x000065;
 }
diff --git a/src/Exceptions/DebugTraceIsDisabledException.php b/src/Exceptions/DebugTraceIsDisabledException.php
new file mode 100644
index 00000000..5b7c59a0
--- /dev/null
+++ b/src/Exceptions/DebugTraceIsDisabledException.php
@@ -0,0 +1,6 @@
+<?php
+namespace PHPJava\Exceptions;
+
+class DebugTraceIsDisabledException extends \Exception
+{
+}
diff --git a/src/Kernel/Types/Type.php b/src/Kernel/Types/Type.php
index 13cf5974..4c5d5ef1 100644
--- a/src/Kernel/Types/Type.php
+++ b/src/Kernel/Types/Type.php
@@ -1,6 +1,7 @@
 <?php
 namespace PHPJava\Kernel\Types;
 
+use PHPJava\Core\JVM\Cache\HeapCache;
 use PHPJava\Exceptions\TypeException;
 
 class Type
diff --git a/tests/OutputDebugTraceTest.php b/tests/OutputDebugTraceTest.php
index 02ebf1c1..911824e6 100644
--- a/tests/OutputDebugTraceTest.php
+++ b/tests/OutputDebugTraceTest.php
@@ -1,6 +1,7 @@
 <?php
 namespace PHPJava\Tests;
 
+use PHPJava\Core\JVM\Parameters\GlobalOptions;
 use PHPUnit\Framework\TestCase;
 
 class OutputDebugTraceTest extends Base
@@ -13,6 +14,12 @@ public function testCallMain()
     {
         ob_start();
 
+        GlobalOptions::set([
+            'operations' => [
+                'enable_trace' => true,
+            ],
+        ]);
+
         $calculatedValue = $this->initiatedJavaClasses['OutputDebugTraceTest']
             ->getInvoker()
             ->getStatic()
@@ -30,5 +37,7 @@ public function testCallMain()
             file_get_contents(__DIR__ . '/templates/DebugTraceTest.txt'),
             $result
         );
+
+        GlobalOptions::reset();
     }
 }