diff --git a/src/GraphCtrl/GraphAspect/GAspectManager.cpp b/src/GraphCtrl/GraphAspect/GAspectManager.cpp
index 527a6f80..d118c34b 100644
--- a/src/GraphCtrl/GraphAspect/GAspectManager.cpp
+++ b/src/GraphCtrl/GraphAspect/GAspectManager.cpp
@@ -21,7 +21,7 @@ GAspectManager::~GAspectManager() {
 
 
 CStatus GAspectManager::reflect(const internal::GAspectType &type,
-                                const CStatus &curStatus) {
+                                const CStatus &curStatus) const {
     CGRAPH_FUNCTION_BEGIN
 
     for (GAspectPtr aspect : aspect_arr_) {
diff --git a/src/GraphCtrl/GraphAspect/GAspectManager.h b/src/GraphCtrl/GraphAspect/GAspectManager.h
index b4a966ea..8322b9d6 100644
--- a/src/GraphCtrl/GraphAspect/GAspectManager.h
+++ b/src/GraphCtrl/GraphAspect/GAspectManager.h
@@ -29,7 +29,7 @@ class GAspectManager : public GAspectObject,
      * @return
      */
     CStatus reflect(const internal::GAspectType& type,
-                    const CStatus& curStatus = CStatus());
+                    const CStatus& curStatus = CStatus()) const;
 
     CStatus add(GAspectPtr aspect) final;
 
diff --git a/src/GraphCtrl/GraphElement/GElement.cpp b/src/GraphCtrl/GraphElement/GElement.cpp
index b29d92ca..d264446e 100644
--- a/src/GraphCtrl/GraphElement/GElement.cpp
+++ b/src/GraphCtrl/GraphElement/GElement.cpp
@@ -205,7 +205,7 @@ CStatus GElement::addManagers(GParamManagerPtr paramManager,
 }
 
 
-CStatus GElement::doAspect(const internal::GAspectType& aspectType, const CStatus& curStatus) {
+CStatus GElement::doAspect(const internal::GAspectType& aspectType, const CStatus& curStatus) const {
     CGRAPH_FUNCTION_BEGIN
 
     // 如果切面管理类为空，或者未添加切面，直接返回
diff --git a/src/GraphCtrl/GraphElement/GElement.h b/src/GraphCtrl/GraphElement/GElement.h
index be8ef3c9..5e49605c 100644
--- a/src/GraphCtrl/GraphElement/GElement.h
+++ b/src/GraphCtrl/GraphElement/GElement.h
@@ -300,7 +300,7 @@ class GElement : public GElementObject,
      * @return
      */
     CStatus doAspect(const internal::GAspectType& aspectType,
-                     const CStatus& curStatus = CStatus());
+                     const CStatus& curStatus = CStatus()) const;
 
     /**
      * 设置element信息
diff --git a/src/GraphCtrl/GraphElement/_GEngine/GDynamicEngine/GDynamicEngine.cpp b/src/GraphCtrl/GraphElement/_GEngine/GDynamicEngine/GDynamicEngine.cpp
index 74a6d2f2..77759045 100644
--- a/src/GraphCtrl/GraphElement/_GEngine/GDynamicEngine/GDynamicEngine.cpp
+++ b/src/GraphCtrl/GraphElement/_GEngine/GDynamicEngine/GDynamicEngine.cpp
@@ -102,16 +102,16 @@ CVoid GDynamicEngine::analysisDagType() {
 CVoid GDynamicEngine::analysisParallelMatrix() {
     parallel_element_matrix_.clear();
     const auto& config = thread_pool_ ? thread_pool_->getConfig() : UThreadPoolConfig();
-    CSize thdSize = config.default_thread_size_ + config.secondary_thread_size_;
+    const CSize& thdSize = config.default_thread_size_ + config.secondary_thread_size_;
     CGRAPH_THROW_EXCEPTION_BY_CONDITION(thdSize <= 0,
                                         "default thread size cannot smaller than 1");
-    CSize taskNumPerThd = total_end_size_ / thdSize + (CSize)(0 != total_end_size_ % thdSize);
+    const CSize& taskNumPerThd = total_end_size_ / thdSize + static_cast<CSize>(0 != total_end_size_ % thdSize);
     CGRAPH_THROW_EXCEPTION_BY_CONDITION(taskNumPerThd == 0,
                                         "task number per thread is 0");
 
     CSize curIndex = 0;
     while (curIndex < total_end_size_) {
-        CSize curEnd = curIndex + taskNumPerThd < total_end_size_ ? curIndex + taskNumPerThd : total_end_size_ ;
+        const CSize curEnd = curIndex + taskNumPerThd < total_end_size_ ? curIndex + taskNumPerThd : total_end_size_ ;
         GElementPtrArr curArr(total_element_arr_.data() + curIndex, total_element_arr_.data() + curEnd);
         CGRAPH_THROW_EXCEPTION_BY_CONDITION(curArr.empty(),
                                             "current elements array cannot be empty");
@@ -233,7 +233,8 @@ CVoid GDynamicEngine::parallelRunAll() {
 #else
 CVoid GDynamicEngine::parallelRunAll() {
     parallel_run_num_ = 0;
-    for (CIndex i = 0; i < (CIndex)parallel_element_matrix_.size(); i++) {
+    const CIndex& totalSize = static_cast<CIndex>(parallel_element_matrix_.size());
+    for (CIndex i = 0; i < totalSize; i++) {
         auto& curArr = parallel_element_matrix_[i];
         if (curArr.size() > 1) {
             for (const auto& element : curArr) {
@@ -249,7 +250,7 @@ CVoid GDynamicEngine::parallelRunAll() {
         }
     }
 
-    if (parallel_element_matrix_.size() < (CSize)(thread_pool_->getConfig().default_thread_size_)) {
+    if (parallel_element_matrix_.size() < static_cast<CSize>(thread_pool_->getConfig().default_thread_size_)) {
         // 确保所有的 pt 都可以被唤醒，从而快速执行
         thread_pool_->wakeupAllThread();
     }
@@ -269,7 +270,7 @@ CVoid GDynamicEngine::parallelRunOne(GElementPtr element) {
         return;
     }
 
-    auto status = element->fatProcessor(CFunctionType::RUN);
+    const auto& status = element->fatProcessor(CFunctionType::RUN);
     if (unlikely(status.isErr())) {
         {
             CGRAPH_LOCK_GUARD lk(status_lock_);
@@ -277,7 +278,7 @@ CVoid GDynamicEngine::parallelRunOne(GElementPtr element) {
         }
     }
 
-    auto finishedSize = parallel_run_num_.fetch_add(1, std::memory_order_release) + 1;
+    const auto& finishedSize = parallel_run_num_.fetch_add(1, std::memory_order_release) + 1;
     if (finishedSize >= total_end_size_ || cur_status_.isErr()) {
         CGRAPH_UNIQUE_LOCK lock(locker_.mtx_);
         locker_.cv_.notify_one();
diff --git a/src/GraphCtrl/GraphElement/_GEngine/GStaticEngine/GStaticEngine.cpp b/src/GraphCtrl/GraphElement/_GEngine/GStaticEngine/GStaticEngine.cpp
index a38fe49f..661299ab 100644
--- a/src/GraphCtrl/GraphElement/_GEngine/GStaticEngine/GStaticEngine.cpp
+++ b/src/GraphCtrl/GraphElement/_GEngine/GStaticEngine/GStaticEngine.cpp
@@ -29,7 +29,7 @@ CStatus GStaticEngine::setup(const GSortedGElementPtrSet& elements) {
         element_mat_.emplace_back(curArr);
         GElementPtrArr runnableArr = curArr;
         curArr.clear();
-        for (auto element : runnableArr) {
+        for (const auto element : runnableArr) {
             for (auto cur : element->run_before_) {
                 if (0 == (--cur->left_depend_)) {
                     curArr.push_back(cur);