diff --git a/source/dnode/vnode/src/tsdb/tsdbRead.c b/source/dnode/vnode/src/tsdb/tsdbRead.c
index c939c115364901c449116e2a963948139d11bd45..5c7c63f59f45166c6931384e342e92422c721285 100644
--- a/source/dnode/vnode/src/tsdb/tsdbRead.c
+++ b/source/dnode/vnode/src/tsdb/tsdbRead.c
@@ -4550,6 +4550,8 @@ int32_t tsdbRetrieveDatablockSMA(STsdbReader* pReader, SSDataBlock* pDataBlock,
     return TSDB_CODE_SUCCESS;
   }
 
+  int64_t st = taosGetTimestampUs();
+
   SDataBlk* pBlock = getCurrentBlock(&pReader->status.blockIter);
   if (tDataBlkHasSma(pBlock)) {
     code = tsdbReadBlockSma(pReader->pFileReader, pBlock, pSup->pColAgg);
@@ -4611,6 +4613,9 @@ int32_t tsdbRetrieveDatablockSMA(STsdbReader* pReader, SSDataBlock* pDataBlock,
   *pBlockSMA = pResBlock->pBlockAgg;
   pReader->cost.smaDataLoad += 1;
 
+  double elapsedTime = (taosGetTimestampUs() - st) / 1000.0;
+  pReader->cost.smaLoadTime += elapsedTime;
+
   tsdbDebug("vgId:%d, succeed to load block SMA for uid %" PRIu64 ", %s", 0, pFBlock->uid, pReader->idStr);
   return code;
 }