diff --git a/source/libs/executor/src/projectoperator.c b/source/libs/executor/src/projectoperator.c
index 86c49e0fc82b76a595480e61b53167aab4b81f18..811bcbe0b52ff4d624f5dbbea5c8ab625a822f3c 100644
--- a/source/libs/executor/src/projectoperator.c
+++ b/source/libs/executor/src/projectoperator.c
@@ -247,6 +247,9 @@ SSDataBlock* doProjectOperation(SOperatorInfo* pOperator) {
     return doGenerateSourceData(pOperator);
   }
 
+  int64_t st0 = taosGetTimestampUs();
+  int64_t st1 = 0, st2 = 0;
+
   while (1) {
     while (1) {
       blockDataCleanup(pRes);
@@ -258,6 +261,7 @@ SSDataBlock* doProjectOperation(SOperatorInfo* pOperator) {
         setOperatorCompleted(pOperator);
         break;
       }
+      st1 = taosGetTimestampUs();
 //      if (pTaskInfo->execModel == OPTR_EXEC_MODEL_QUEUE) {
 //        qDebug("set status recv");
 //        pOperator->status = OP_EXEC_RECV;
@@ -299,6 +303,8 @@ SSDataBlock* doProjectOperation(SOperatorInfo* pOperator) {
         continue;
       }
 
+      st2 = taosGetTimestampUs();
+
       break;
     }
 
@@ -344,6 +350,10 @@ SSDataBlock* doProjectOperation(SOperatorInfo* pOperator) {
     pOperator->cost.openCost = (taosGetTimestampUs() - st) / 1000.0;
   }
 
+  if (p->info.rows > 0) {
+    qError("doProjection, open:%" PRId64 "us, project:%" PRId64 "us, rows:%" PRId64,st1-st0,st2-st1,p->info.rows);
+  }
+
   return (p->info.rows > 0) ? p : NULL;
 }
 
diff --git a/source/libs/executor/src/timewindowoperator.c b/source/libs/executor/src/timewindowoperator.c
index 1a1fb6208d7a187f207c73c8fd5e53e8750bd52d..e115090be72aba342df166f1144e573102722d4c 100644
--- a/source/libs/executor/src/timewindowoperator.c
+++ b/source/libs/executor/src/timewindowoperator.c
@@ -1275,15 +1275,20 @@ static SSDataBlock* doBuildIntervalResult(SOperatorInfo* pOperator) {
     return NULL;
   }
 
+  int64_t st0 = taosGetTimestampUs();
   SSDataBlock* pBlock = pInfo->binfo.pRes;
   pTaskInfo->code = pOperator->fpSet._openFn(pOperator);
   if (pTaskInfo->code != TSDB_CODE_SUCCESS) {
     return NULL;
   }
+  int64_t st1 = taosGetTimestampUs();
+  int64_t st2 = 0, st3 = 0;
 
   while (1) {
     doBuildResultDatablock(pOperator, &pInfo->binfo, &pInfo->groupResInfo, pInfo->aggSup.pResultBuf);
+    st2 = taosGetTimestampUs();
     doFilter(pBlock, pOperator->exprSupp.pFilterInfo, NULL);
+    st3 = taosGetTimestampUs();
 
     bool hasRemain = hasRemainResults(&pInfo->groupResInfo);
     if (!hasRemain) {
@@ -1292,6 +1297,7 @@ static SSDataBlock* doBuildIntervalResult(SOperatorInfo* pOperator) {
     }
 
     if (pBlock->info.rows > 0) {
+      qError("interval open:%" PRId64 "us, build:%" PRId64 "us, filter:%" PRId64 "us, rows:%" PRId64, st1-st0,st2-st1,st3-st2,pBlock->info.rows);
       break;
     }
   }