diff --git a/cpp/src/scheduler/task/SearchTask.cpp b/cpp/src/scheduler/task/SearchTask.cpp
index 56885bae529939973ea41898c8ca179d09b0a97f..808bb55c9e676b288fa5bbb5721f52d934d99b27 100644
--- a/cpp/src/scheduler/task/SearchTask.cpp
+++ b/cpp/src/scheduler/task/SearchTask.cpp
@@ -157,18 +157,12 @@ XSearchTask::Execute() {
 
         try {
             //step 2: search
-            auto start = std::chrono::high_resolution_clock::now();
             index_engine_->Search(context->nq(), context->vectors(), inner_k, nprobe, output_distence.data(),
                                   output_ids.data());
-            auto finish = std::chrono::high_resolution_clock::now();
-//            std::cout << "Knowhere COST: " << std::chrono::duration_cast<std::chrono::duration<double>>(finish - start).count() << "s\n";
-//            std::cout << "********************************************************\n";
-
 
             double span = rc.RecordSection("do search for context:" + context->Identity());
             context->AccumSearchCost(span);
 
-            start = std::chrono::high_resolution_clock::now();
 
             //step 3: cluster result
             SearchContext::ResultSet result_set;
@@ -183,10 +177,6 @@ XSearchTask::Execute() {
 
             context->AccumReduceCost(span);
             span = rc.RecordSection("reduce topk for context:" + context->Identity());
-            finish = std::chrono::high_resolution_clock::now();
-//            std::cout << "Reduce COST: " << std::chrono::duration_cast<std::chrono::duration<double>>(finish - start).count() << "s\n";
-//            std::cout << "********************************************************\n";
-
         } catch (std::exception &ex) {
             ENGINE_LOG_ERROR << "SearchTask encounter exception: " << ex.what();
             context->IndexSearchDone(index_id_);//mark as done avoid dead lock, even search failed