diff --git a/dipu/torch_dipu/csrc_dipu/runtime/core/allocator/DIPUAsyncResourcePool.h b/dipu/torch_dipu/csrc_dipu/runtime/core/allocator/DIPUAsyncResourcePool.h
index df97885428..fe8fca6f94 100644
--- a/dipu/torch_dipu/csrc_dipu/runtime/core/allocator/DIPUAsyncResourcePool.h
+++ b/dipu/torch_dipu/csrc_dipu/runtime/core/allocator/DIPUAsyncResourcePool.h
@@ -29,11 +29,7 @@ class AsyncResourcePoolImpl : public AsyncResourcePool<T> {
  public:
   void add(const T& t, std::deque<DIPUEvent>& events) override {
     std::lock_guard<mutex_t> lk(mutex_);
-    if (events.size() > 0) {
-      list_.emplace_back(t, std::move(events));
-    } else {
-      list_.emplace_front(t, std::move(events));
-    }
+    list_.emplace_back(t, std::move(events));
   }
 
   T get() override {
diff --git a/dipu/torch_dipu/csrc_dipu/runtime/core/allocator/DIPUBFCachingAllocator.cpp b/dipu/torch_dipu/csrc_dipu/runtime/core/allocator/DIPUBFCachingAllocator.cpp
index efe6a06ac0..500849d2a0 100644
--- a/dipu/torch_dipu/csrc_dipu/runtime/core/allocator/DIPUBFCachingAllocator.cpp
+++ b/dipu/torch_dipu/csrc_dipu/runtime/core/allocator/DIPUBFCachingAllocator.cpp
@@ -15,8 +15,8 @@
 namespace dipu {
 
 // NOLINTNEXTLINE(cppcoreguidelines-avoid-non-const-global-variables)
-const size_t kMaxExtendSize =
-    get_env_or_default("DIPU_MAX_EXTEND_SIZE", 1024 << 20U);
+const size_t kMaxExtendSize = get_env_or_default("DIPU_MAX_EXTEND_SIZE", 1024)
+                              << 20U;
 
 class BFCachingAllocatorImpl {
  public: