diff --git a/change_log.txt b/change_log.txt
index f5433865..c20f4217 100644
--- a/change_log.txt
+++ b/change_log.txt
@@ -12,6 +12,7 @@
   - remove properties with redundant content
   - optimize Smarty::templateExists()
   - optimize use_include_path processing
+  - relocate properties for size optimization
 
  06.08.2015
   - avoid possible circular object references caused by parser/lexer objects
diff --git a/libs/Smarty.class.php b/libs/Smarty.class.php
index 346bc993..e9737a7c 100644
--- a/libs/Smarty.class.php
+++ b/libs/Smarty.class.php
@@ -486,13 +486,6 @@ class Smarty extends Smarty_Internal_TemplateBase
      */
     public $error_reporting = null;
 
-    /**
-     * Internal flag for getTags()
-     *
-     * @var boolean
-     */
-    public $get_used_tags = false;
-
     /**#@+
      * config var settings
      */
@@ -654,13 +647,6 @@ class Smarty extends Smarty_Internal_TemplateBase
      */
     public $start_time = 0;
 
-    /**
-     * block tag hierarchy
-     *
-     * @var array
-     */
-    public $_tag_stack = array();
-
     /**
      * required by the compiler for BC
      *
diff --git a/libs/sysplugins/smarty_internal_compile_block.php b/libs/sysplugins/smarty_internal_compile_block.php
index 92724100..1d97ac81 100644
--- a/libs/sysplugins/smarty_internal_compile_block.php
+++ b/libs/sysplugins/smarty_internal_compile_block.php
@@ -163,11 +163,11 @@ class Smarty_Internal_Compile_Block extends Smarty_Internal_CompileBase
             $compiler->smarty->_debug->ignore($_tpl);
         }
         $_tpl->tpl_vars = $compiler->template->tpl_vars;
-        $_tpl->variable_filters = $compiler->template->variable_filters;
         $_tpl->compiled = new Smarty_Template_Compiled();
         $_tpl->compiled->nocache_hash = $compiler->template->compiled->nocache_hash;
-        $_tpl->allow_relative_path = true;
+        $_tpl->_cache['allow_relative_path'] = true;
         $_tpl->loadCompiler();
+        $_tpl->compiler->variable_filters = $compiler->variable_filters;
         $_tpl->compiler->parent_compiler = $compiler;
         $_tpl->compiler->_tag_objects = $compiler->_tag_objects;
         $_tpl->compiler->inheritance = true;
@@ -190,7 +190,7 @@ class Smarty_Internal_Compile_Block extends Smarty_Internal_CompileBase
         $compiler->template->compiled->file_dependency = array_merge($compiler->template->compiled->file_dependency, $_tpl->compiled->file_dependency);
         unset($compiler->template->compiled->file_dependency[$_tpl->source->uid]);
         $compiler->template->tpl_function = array_merge($compiler->template->tpl_function, $_tpl->tpl_function);
-        $compiler->template->variable_filters = $_tpl->variable_filters;
+        $compiler->variable_filters = $_tpl->compiler->variable_filters;
         if ($_tpl->compiled->has_nocache_code) {
             $compiler->template->compiled->has_nocache_code = true;
         }
diff --git a/libs/sysplugins/smarty_internal_compile_capture.php b/libs/sysplugins/smarty_internal_compile_capture.php
index 873ca79e..95c75a4b 100644
--- a/libs/sysplugins/smarty_internal_compile_capture.php
+++ b/libs/sysplugins/smarty_internal_compile_capture.php
@@ -52,7 +52,7 @@ class Smarty_Internal_Compile_Capture extends Smarty_Internal_CompileBase
         $compiler->_capture_stack[0][] = array($buffer, $assign, $append, $compiler->nocache);
         // maybe nocache because of nocache variables
         $compiler->nocache = $compiler->nocache | $compiler->tag_nocache;
-        $_output = "<?php \$_smarty_tpl->_capture_stack[0][] = array($buffer, $assign, $append); ob_start(); ?>";
+        $_output = "<?php \$_smarty_tpl->_cache['capture_stack'][] = array($buffer, $assign, $append); ob_start(); ?>";
 
         return $_output;
     }
@@ -106,7 +106,7 @@ class Smarty_Internal_Compile_CaptureClose extends Smarty_Internal_CompileBase
 
         list($buffer, $assign, $append, $compiler->nocache) = array_pop($compiler->_capture_stack[0]);
 
-        $_output = "<?php list(\$_capture_buffer, \$_capture_assign, \$_capture_append) = array_pop(\$_smarty_tpl->_capture_stack[0]);\n";
+        $_output = "<?php list(\$_capture_buffer, \$_capture_assign, \$_capture_append) = array_pop(\$_smarty_tpl->_cache['capture_stack']);\n";
         $_output .= "if (!empty(\$_capture_buffer)) {\n";
         $_output .= " if (isset(\$_capture_assign)) \$_smarty_tpl->assign(\$_capture_assign, ob_get_contents());\n";
         $_output .= " if (isset( \$_capture_append)) \$_smarty_tpl->append( \$_capture_append, ob_get_contents());\n";
diff --git a/libs/sysplugins/smarty_internal_compile_private_block_plugin.php b/libs/sysplugins/smarty_internal_compile_private_block_plugin.php
index f0d23e2a..9e2eea23 100644
--- a/libs/sysplugins/smarty_internal_compile_private_block_plugin.php
+++ b/libs/sysplugins/smarty_internal_compile_private_block_plugin.php
@@ -60,7 +60,7 @@ class Smarty_Internal_Compile_Private_Block_Plugin extends Smarty_Internal_Compi
             // maybe nocache because of nocache variables or nocache plugin
             $compiler->nocache = $compiler->nocache | $compiler->tag_nocache;
             // compile code
-            $output = "<?php \$_smarty_tpl->smarty->_tag_stack[] = array('{$tag}', {$_params}); \$_block_repeat=true; echo {$function}({$_params}, null, \$_smarty_tpl, \$_block_repeat);while (\$_block_repeat) { ob_start();?>";
+            $output = "<?php \$_smarty_tpl->smarty->_cache['tag_stack'][] = array('{$tag}', {$_params}); \$_block_repeat=true; echo {$function}({$_params}, null, \$_smarty_tpl, \$_block_repeat);while (\$_block_repeat) { ob_start();?>";
         } else {
             // must endblock be nocache?
             if ($compiler->nocache) {
@@ -81,7 +81,7 @@ class Smarty_Internal_Compile_Private_Block_Plugin extends Smarty_Internal_Compi
             }
             $output = "<?php \$_block_content = ob_get_clean(); \$_block_repeat=false;" . $mod_pre .
                 " echo {$function}({$_params}, \$_block_content, \$_smarty_tpl, \$_block_repeat); " . $mod_post .
-                " } array_pop(\$_smarty_tpl->smarty->_tag_stack);?>";
+                " } array_pop(\$_smarty_tpl->smarty->_cache['tag_stack']);?>";
         }
 
         return $output . "\n";
diff --git a/libs/sysplugins/smarty_internal_compile_private_object_block_function.php b/libs/sysplugins/smarty_internal_compile_private_object_block_function.php
index 46eb27d5..c6cf488d 100644
--- a/libs/sysplugins/smarty_internal_compile_private_object_block_function.php
+++ b/libs/sysplugins/smarty_internal_compile_private_object_block_function.php
@@ -60,7 +60,7 @@ class Smarty_Internal_Compile_Private_Object_Block_Function extends Smarty_Inter
             // maybe nocache because of nocache variables or nocache plugin
             $compiler->nocache = $compiler->nocache | $compiler->tag_nocache;
             // compile code
-            $output = "<?php \$_smarty_tpl->smarty->_tag_stack[] = array('{$tag}->{$method}', {$_params}); \$_block_repeat=true; echo \$_smarty_tpl->smarty->registered_objects['{$tag}'][0]->{$method}({$_params}, null, \$_smarty_tpl, \$_block_repeat);while (\$_block_repeat) { ob_start();?>";
+            $output = "<?php \$_smarty_tpl->smarty->_cache['tag_stack'][] = array('{$tag}->{$method}', {$_params}); \$_block_repeat=true; echo \$_smarty_tpl->smarty->registered_objects['{$tag}'][0]->{$method}({$_params}, null, \$_smarty_tpl, \$_block_repeat);while (\$_block_repeat) { ob_start();?>";
         } else {
             $base_tag = substr($tag, 0, - 5);
             // must endblock be nocache?
@@ -82,7 +82,7 @@ class Smarty_Internal_Compile_Private_Object_Block_Function extends Smarty_Inter
             }
             $output = "<?php \$_block_content = ob_get_contents(); ob_end_clean(); \$_block_repeat=false;" . $mod_pre .
                 " echo \$_smarty_tpl->smarty->registered_objects['{$base_tag}'][0]->{$method}({$_params}, \$_block_content, \$_smarty_tpl, \$_block_repeat); " .
-                $mod_post . "  } array_pop(\$_smarty_tpl->smarty->_tag_stack);?>";
+                $mod_post . "  } array_pop(\$_smarty_tpl->smarty->_cache['tag_stack']);?>";
         }
 
         return $output . "\n";
diff --git a/libs/sysplugins/smarty_internal_compile_private_print_expression.php b/libs/sysplugins/smarty_internal_compile_private_print_expression.php
index af714a53..c0c089bf 100644
--- a/libs/sysplugins/smarty_internal_compile_private_print_expression.php
+++ b/libs/sysplugins/smarty_internal_compile_private_print_expression.php
@@ -108,16 +108,14 @@ class Smarty_Internal_Compile_Private_Print_Expression extends Smarty_Internal_C
                         }
                     }
                 }
-                if (isset($compiler->template->variable_filters)) {
-                    foreach ($compiler->template->variable_filters as $filter) {
-                        if (count($filter) == 1 &&
-                            ($result = $this->compile_output_filter($compiler, $filter[0], $output)) !== false
-                        ) {
-                            $output = $result;
-                        } else {
-                            $output = $compiler->compileTag('private_modifier', array(), array('modifierlist' => array($filter),
-                                                                                               'value'        => $output));
-                        }
+                foreach ($compiler->variable_filters as $filter) {
+                    if (count($filter) == 1 &&
+                        ($result = $this->compile_output_filter($compiler, $filter[0], $output)) !== false
+                    ) {
+                        $output = $result;
+                    } else {
+                        $output = $compiler->compileTag('private_modifier', array(), array('modifierlist' => array($filter),
+                                                                                           'value'        => $output));
                     }
                 }
             }
diff --git a/libs/sysplugins/smarty_internal_compile_private_registered_block.php b/libs/sysplugins/smarty_internal_compile_private_registered_block.php
index 640eb34e..78d95f72 100644
--- a/libs/sysplugins/smarty_internal_compile_private_registered_block.php
+++ b/libs/sysplugins/smarty_internal_compile_private_registered_block.php
@@ -69,11 +69,11 @@ class Smarty_Internal_Compile_Private_Registered_Block extends Smarty_Internal_C
             $function = $tag_info[0];
             // compile code
             if (!is_array($function)) {
-                $output = "<?php \$_smarty_tpl->smarty->_tag_stack[] = array('{$tag}', {$_params}); \$_block_repeat=true; echo {$function}({$_params}, null, \$_smarty_tpl, \$_block_repeat);while (\$_block_repeat) { ob_start();?>";
+                $output = "<?php \$_smarty_tpl->smarty->_cache['tag_stack'][] = array('{$tag}', {$_params}); \$_block_repeat=true; echo {$function}({$_params}, null, \$_smarty_tpl, \$_block_repeat);while (\$_block_repeat) { ob_start();?>";
             } elseif (is_object($function[0])) {
-                $output = "<?php \$_smarty_tpl->smarty->_tag_stack[] = array('{$tag}', {$_params}); \$_block_repeat=true; echo \$_smarty_tpl->smarty->registered_plugins['block']['{$tag}'][0][0]->{$function[1]}({$_params}, null, \$_smarty_tpl, \$_block_repeat);while (\$_block_repeat) { ob_start();?>";
+                $output = "<?php \$_smarty_tpl->smarty->_cache['tag_stack'][] = array('{$tag}', {$_params}); \$_block_repeat=true; echo \$_smarty_tpl->smarty->registered_plugins['block']['{$tag}'][0][0]->{$function[1]}({$_params}, null, \$_smarty_tpl, \$_block_repeat);while (\$_block_repeat) { ob_start();?>";
             } else {
-                $output = "<?php \$_smarty_tpl->smarty->_tag_stack[] = array('{$tag}', {$_params}); \$_block_repeat=true; echo {$function[0]}::{$function[1]}({$_params}, null, \$_smarty_tpl, \$_block_repeat);while (\$_block_repeat) { ob_start();?>";
+                $output = "<?php \$_smarty_tpl->smarty->_cache['tag_stack'][] = array('{$tag}', {$_params}); \$_block_repeat=true; echo {$function[0]}::{$function[1]}({$_params}, null, \$_smarty_tpl, \$_block_repeat);while (\$_block_repeat) { ob_start();?>";
             }
         } else {
             // must endblock be nocache?
@@ -102,15 +102,15 @@ class Smarty_Internal_Compile_Private_Registered_Block extends Smarty_Internal_C
             if (!is_array($function)) {
                 $output = "<?php \$_block_content = ob_get_clean(); \$_block_repeat=false;" . $mod_pre .
                     " echo {$function}({$_params}, \$_block_content, \$_smarty_tpl, \$_block_repeat);" . $mod_post .
-                    " } array_pop(\$_smarty_tpl->smarty->_tag_stack);?>";
+                    " } array_pop(\$_smarty_tpl->smarty->_cache['tag_stack']);?>";
             } elseif (is_object($function[0])) {
                 $output = "<?php \$_block_content = ob_get_clean(); \$_block_repeat=false;" . $mod_pre .
                     " echo \$_smarty_tpl->smarty->registered_plugins['block']['{$base_tag}'][0][0]->{$function[1]}({$_params}, \$_block_content, \$_smarty_tpl, \$_block_repeat); " .
-                    $mod_post . "} array_pop(\$_smarty_tpl->smarty->_tag_stack);?>";
+                    $mod_post . "} array_pop(\$_smarty_tpl->smarty->_cache['tag_stack']);?>";
             } else {
                 $output = "<?php \$_block_content = ob_get_clean(); \$_block_repeat=false;" . $mod_pre .
                     " echo {$function[0]}::{$function[1]}({$_params}, \$_block_content, \$_smarty_tpl, \$_block_repeat); " .
-                    $mod_post . "} array_pop(\$_smarty_tpl->smarty->_tag_stack);?>";
+                    $mod_post . "} array_pop(\$_smarty_tpl->smarty->_cache['tag_stack']);?>";
             }
         }
 
diff --git a/libs/sysplugins/smarty_internal_compile_setfilter.php b/libs/sysplugins/smarty_internal_compile_setfilter.php
index 0f70ab62..b4932c1e 100644
--- a/libs/sysplugins/smarty_internal_compile_setfilter.php
+++ b/libs/sysplugins/smarty_internal_compile_setfilter.php
@@ -27,8 +27,8 @@ class Smarty_Internal_Compile_Setfilter extends Smarty_Internal_CompileBase
      */
     public function compile($args, Smarty_Internal_TemplateCompilerBase $compiler, $parameter)
     {
-        $compiler->variable_filter_stack[] = $compiler->template->variable_filters;
-        $compiler->template->variable_filters = $parameter['modifier_list'];
+        $compiler->variable_filter_stack[] = $compiler->variable_filters;
+        $compiler->variable_filters = $parameter['modifier_list'];
         // this tag does not return compiled code
         $compiler->has_code = false;
 
@@ -58,9 +58,9 @@ class Smarty_Internal_Compile_Setfilterclose extends Smarty_Internal_CompileBase
         $_attr = $this->getAttributes($compiler, $args);
         // reset variable filter to previous state
         if (count($compiler->variable_filter_stack)) {
-            $compiler->template->variable_filters = array_pop($compiler->variable_filter_stack);
+            $compiler->variable_filters = array_pop($compiler->variable_filter_stack);
         } else {
-            $compiler->template->variable_filters = array();
+            $compiler->variable_filters = array();
         }
         // this tag does not return compiled code
         $compiler->has_code = false;
diff --git a/libs/sysplugins/smarty_internal_method_gettags.php b/libs/sysplugins/smarty_internal_method_gettags.php
index 3a96b508..dd9e8d1c 100644
--- a/libs/sysplugins/smarty_internal_method_gettags.php
+++ b/libs/sysplugins/smarty_internal_method_gettags.php
@@ -48,13 +48,14 @@ class Smarty_Internal_Method_GetTags
         }
         if (isset($tpl)) {
             $tpl->smarty = clone $tpl->smarty;
-            $tpl->smarty->get_used_tags = true;
+            $tpl->smarty->_cache['get_used_tags'] = true;
+            $tpl->_cache['used_tags'] = array();
             $tpl->smarty->merge_compiled_includes = false;
             $tpl->smarty->disableSecurity();
             $tpl->caching = false;
             $tpl->loadCompiler();
             $tpl->compiler->compileTemplate($tpl);
-            return $tpl->used_tags;
+            return $tpl->_cache['used_tags'];
         }
         throw new SmartyException("Missing template specification");
     }
diff --git a/libs/sysplugins/smarty_internal_resource_file.php b/libs/sysplugins/smarty_internal_resource_file.php
index 47736892..c9d63263 100644
--- a/libs/sysplugins/smarty_internal_resource_file.php
+++ b/libs/sysplugins/smarty_internal_resource_file.php
@@ -39,7 +39,7 @@ class Smarty_Internal_Resource_File extends Smarty_Resource
             preg_match('#^[.]{1,2}[\\\/]#', $file)
         ) {
             if ($_template->parent->source->type != 'file' && $_template->parent->source->type != 'extends' &&
-                !$_template->parent->allow_relative_path
+                !isset($_template->parent->_cache['allow_relative_path'])
             ) {
                 throw new SmartyException("Template '{$file}' cannot be relative to template of resource type '{$_template->parent->source->type}'");
             }
diff --git a/libs/sysplugins/smarty_internal_template.php b/libs/sysplugins/smarty_internal_template.php
index 485be1a4..1e4fdf16 100644
--- a/libs/sysplugins/smarty_internal_template.php
+++ b/libs/sysplugins/smarty_internal_template.php
@@ -63,34 +63,6 @@ class Smarty_Internal_Template extends Smarty_Internal_TemplateBase
      */
     public $block_data = array();
 
-    /**
-     * variable filters
-     *
-     * @var array
-     */
-    public $variable_filters = array();
-
-    /**
-     * optional log of tag/attributes
-     *
-     * @var array
-     */
-    public $used_tags = array();
-
-    /**
-     * internal flag to allow relative path in child template blocks
-     *
-     * @var bool
-     */
-    public $allow_relative_path = false;
-
-    /**
-     * internal capture runtime stack
-     *
-     * @var array
-     */
-    public $_capture_stack = array(0 => array());
-
     /**
      * Template Id
      *
@@ -302,16 +274,14 @@ class Smarty_Internal_Template extends Smarty_Internal_TemplateBase
             if (isset($this->smarty->security_policy)) {
                 $this->smarty->security_policy->startTemplate($this);
             }
-            array_unshift($this->_capture_stack, array());
-            //
+             //
             // render compiled or saved template code
             //
             $unifunc($this);
             // any unclosed {capture} tags ?
-            if (isset($this->_capture_stack[0][0])) {
+            if (isset($this->_cache['capture_stack'][0])) {
                 $this->capture_error();
             }
-            array_shift($this->_capture_stack);
             if (isset($this->smarty->security_policy)) {
                 $this->smarty->security_policy->exitTemplate();
             }
@@ -321,7 +291,6 @@ class Smarty_Internal_Template extends Smarty_Internal_TemplateBase
             while (ob_get_level() > $level) {
                 ob_end_clean();
             }
-            array_shift($this->_capture_stack);
             if (isset($this->smarty->security_policy)) {
                 $this->smarty->security_policy->exitTemplate();
             }
diff --git a/libs/sysplugins/smarty_internal_templatecompilerbase.php b/libs/sysplugins/smarty_internal_templatecompilerbase.php
index 28aea607..97a1280a 100644
--- a/libs/sysplugins/smarty_internal_templatecompilerbase.php
+++ b/libs/sysplugins/smarty_internal_templatecompilerbase.php
@@ -320,6 +320,13 @@ abstract class Smarty_Internal_TemplateCompilerBase
     public $variable_filter_stack = array();
 
     /**
+     * variable filters for {setfilter} {/setfilter}
+     *
+     * @var array
+     */
+    public $variable_filters = array();
+
+   /**
      * Loop nesting count
      *
      * @var int
@@ -545,8 +552,8 @@ abstract class Smarty_Internal_TemplateCompilerBase
         $this->has_code = true;
         $this->has_output = false;
         // log tag/attributes
-        if (isset($this->smarty->get_used_tags) && $this->smarty->get_used_tags) {
-            $this->template->used_tags[] = array($tag, $args);
+        if (isset($this->smarty->_cache['get_used_tags'])) {
+            $this->template->_cache['used_tags'][] = array($tag, $args);
         }
         // check nocache option flag
         if (in_array("'nocache'", $args) || in_array(array('nocache' => 'true'), $args) ||
diff --git a/libs/sysplugins/smarty_template_resource_base.php b/libs/sysplugins/smarty_template_resource_base.php
index 19d5d536..2f7ef194 100644
--- a/libs/sysplugins/smarty_template_resource_base.php
+++ b/libs/sysplugins/smarty_template_resource_base.php
@@ -119,16 +119,14 @@ abstract class Smarty_Template_Resource_Base
             if (isset($_template->smarty->security_policy)) {
                 $_template->smarty->security_policy->startTemplate($_template);
             }
-            array_unshift($_template->_capture_stack, array());
             //
             // render compiled or saved template code
             //
             $unifunc($_template);
             // any unclosed {capture} tags ?
-            if (isset($_template->_capture_stack[0][0])) {
+            if (isset($_template->_cache['capture_stack'][0])) {
                 $_template->capture_error();
             }
-            array_shift($_template->_capture_stack);
             if (isset($_template->smarty->security_policy)) {
                 $_template->smarty->security_policy->exitTemplate();
             }
@@ -138,8 +136,7 @@ abstract class Smarty_Template_Resource_Base
             while (ob_get_level() > $level) {
                 ob_end_clean();
             }
-            array_shift($_template->_capture_stack);
-            if (isset($_template->smarty->security_policy)) {
+             if (isset($_template->smarty->security_policy)) {
                 $_template->smarty->security_policy->exitTemplate();
             }
             throw $e;