diff --git a/src/GraphCtrl/GraphElement/_GEngine/GDynamicEngine/GDynamicEngine.cpp b/src/GraphCtrl/GraphElement/_GEngine/GDynamicEngine/GDynamicEngine.cpp
index fd2fe6da..c161a5bd 100644
--- a/src/GraphCtrl/GraphElement/_GEngine/GDynamicEngine/GDynamicEngine.cpp
+++ b/src/GraphCtrl/GraphElement/_GEngine/GDynamicEngine/GDynamicEngine.cpp
@@ -18,6 +18,7 @@ CStatus GDynamicEngine::setup(const GSortedGElementPtrSet& elements) {
      * 3. 计算element的结构类型
      * 4. 分析当前dag类型信息
      */
+    CGRAPH_ASSERT_NOT_NULL(thread_pool_);
     CGRAPH_RETURN_ERROR_STATUS_BY_CONDITION(!GEngine::isDag(elements),
                                             "it is not a dag struct");
     mark(elements);
@@ -67,6 +68,7 @@ CVoid GDynamicEngine::mark(const GSortedGElementPtrSet& elements) {
     total_element_arr_.clear();
     front_element_arr_.clear();
     total_end_size_ = 0;
+    wait_busy_epoch_ = thread_pool_->getConfig().pipeline_wait_busy_epoch_;
 
     for (GElementPtr element : elements) {
         if (element->run_before_.empty()) {
@@ -316,7 +318,7 @@ CVoid GDynamicEngine::prepareRun() {
 
 template<typename Pred>
 CBool GDynamicEngine::isFastFinished(Pred&& check) {
-    auto epoch = thread_pool_->getConfig().pipeline_wait_busy_epoch_;
+    auto epoch = wait_busy_epoch_;
     while (epoch-- > 0 && !check()) {
         CGRAPH_YIELD();
     }
diff --git a/src/GraphCtrl/GraphElement/_GEngine/GDynamicEngine/GDynamicEngine.h b/src/GraphCtrl/GraphElement/_GEngine/GDynamicEngine/GDynamicEngine.h
index d7a05fc7..ce92f91c 100644
--- a/src/GraphCtrl/GraphElement/_GEngine/GDynamicEngine/GDynamicEngine.h
+++ b/src/GraphCtrl/GraphElement/_GEngine/GDynamicEngine/GDynamicEngine.h
@@ -126,6 +126,7 @@ class GDynamicEngine : public GEngine {
     std::atomic<CSize> parallel_run_num_ {0};                                         // 纯并行时，执行的个数信息
     GElementPtrMat2D parallel_element_matrix_ {};                                        // 纯并行时，记录分解后的数据
     internal::GEngineDagType dag_type_ = { internal::GEngineDagType::COMMON };           // 当前元素的排布形式
+    CInt wait_busy_epoch_ {0};                                                           // dag执行结束前，轮询等待的次数
 
     UCvMutex locker_;
     std::mutex status_lock_;