diff --git a/core/state/statedb.go b/core/state/statedb.go
index 3061cdab62..84d4142034 100644
--- a/core/state/statedb.go
+++ b/core/state/statedb.go
@@ -356,7 +356,7 @@ func (s *StateDB) GetBalance(addr common.Address) *big.Int {
 	start := time.Now()
 	stateObject := s.getStateObject(addr)
 	end := time.Now()
-	s.markMetrics(start, end, false)
+	s.markMetrics(&start, &end, false)
 	if stateObject != nil {
 		return stateObject.Balance()
 	}
@@ -367,7 +367,7 @@ func (s *StateDB) GetNonce(addr common.Address) uint64 {
 	start := time.Now()
 	stateObject := s.getStateObject(addr)
 	end := time.Now()
-	s.markMetrics(start, end, false)
+	s.markMetrics(&start, &end, false)
 	if stateObject != nil {
 		return stateObject.Nonce()
 	}
@@ -388,7 +388,7 @@ func (s *StateDB) GetCode(addr common.Address) []byte {
 	start := time.Now()
 	stateObject := s.getStateObject(addr)
 	end := time.Now()
-	s.markMetrics(start, end, false)
+	s.markMetrics(&start, &end, false)
 	if stateObject != nil {
 		return stateObject.Code(s.db)
 	}
@@ -399,7 +399,7 @@ func (s *StateDB) GetCodeSize(addr common.Address) int {
 	start := time.Now()
 	stateObject := s.getStateObject(addr)
 	end := time.Now()
-	defer s.markMetrics(start, end, false)
+	defer s.markMetrics(&start, &end, false)
 	if stateObject != nil {
 		return stateObject.CodeSize(s.db)
 	}
@@ -410,20 +410,20 @@ func (s *StateDB) GetCodeHash(addr common.Address) common.Hash {
 	start := time.Now()
 	stateObject := s.getStateObject(addr)
 	end := time.Now()
-	s.markMetrics(start, end, false)
+	s.markMetrics(&start, &end, false)
 	if stateObject == nil {
 		return common.Hash{}
 	}
 	return common.BytesToHash(stateObject.CodeHash())
 }
 
-func (s *StateDB) markMetrics(start time.Time, end time.Time, reachStorage bool) {
+func (s *StateDB) markMetrics(start *time.Time, end *time.Time, reachStorage bool) {
 	goid := cachemetrics.Goid()
 	isSyncMainProcess := cachemetrics.IsSyncMainRoutineID(goid)
 	isMinerMainProcess := cachemetrics.IsMinerMainRoutineID(goid)
 	// record metrics of syncing main process
 	if isSyncMainProcess {
-		totalSyncIOCounter.Inc((end.Sub(start)).Nanoseconds())
+		totalSyncIOCounter.Inc((*end).Sub(*start).Nanoseconds())
 		l1AccountMeter.Mark(1)
 		if reachStorage {
 			l1StorageMeter.Mark(1)
@@ -431,7 +431,7 @@ func (s *StateDB) markMetrics(start time.Time, end time.Time, reachStorage bool)
 	}
 	// record metrics of mining main process
 	if isMinerMainProcess {
-		totalMinerIOCounter.Inc((end.Sub(start)).Nanoseconds())
+		totalMinerIOCounter.Inc((*end).Sub(*start).Nanoseconds())
 		minerL1AccountMeter.Mark(1)
 		if reachStorage {
 			l1StorageMeter.Mark(1)
@@ -520,7 +520,7 @@ func (s *StateDB) GetCommittedState(addr common.Address, hash common.Hash) commo
 	start := time.Now()
 	var end time.Time
 	needStorage := false
-	defer s.markMetrics(start, end, needStorage)
+	defer s.markMetrics(&start, &end, needStorage)
 	stateObject := s.getStateObject(addr)
 	hit := false
 	end = time.Now()
@@ -567,7 +567,7 @@ func (s *StateDB) AddBalance(addr common.Address, amount *big.Int) {
 	start := time.Now()
 	stateObject := s.GetOrNewStateObject(addr)
 	end := time.Now()
-	s.markMetrics(start, end, false)
+	s.markMetrics(&start, &end, false)
 	if stateObject != nil {
 		stateObject.AddBalance(amount)
 	}
@@ -578,7 +578,7 @@ func (s *StateDB) SubBalance(addr common.Address, amount *big.Int) {
 	start := time.Now()
 	stateObject := s.GetOrNewStateObject(addr)
 	end := time.Now()
-	s.markMetrics(start, end, false)
+	s.markMetrics(&start, &end, false)
 	if stateObject != nil {
 		stateObject.SubBalance(amount)
 	}
@@ -588,7 +588,7 @@ func (s *StateDB) SetBalance(addr common.Address, amount *big.Int) {
 	start := time.Now()
 	stateObject := s.GetOrNewStateObject(addr)
 	end := time.Now()
-	s.markMetrics(start, end, false)
+	s.markMetrics(&start, &end, false)
 	if stateObject != nil {
 		stateObject.SetBalance(amount)
 	}
@@ -598,7 +598,7 @@ func (s *StateDB) SetNonce(addr common.Address, nonce uint64) {
 	start := time.Now()
 	stateObject := s.GetOrNewStateObject(addr)
 	end := time.Now()
-	s.markMetrics(start, end, false)
+	s.markMetrics(&start, &end, false)
 	if stateObject != nil {
 		stateObject.SetNonce(nonce)
 	}
@@ -608,7 +608,7 @@ func (s *StateDB) SetCode(addr common.Address, code []byte) {
 	start := time.Now()
 	stateObject := s.GetOrNewStateObject(addr)
 	end := time.Now()
-	s.markMetrics(start, end, false)
+	s.markMetrics(&start, &end, false)
 	if stateObject != nil {
 		stateObject.SetCode(crypto.Keccak256Hash(code), code)
 	}
@@ -618,7 +618,7 @@ func (s *StateDB) SetState(addr common.Address, key, value common.Hash) {
 	start := time.Now()
 	markStorage := false
 	var end time.Time
-	defer s.markMetrics(start, end, markStorage)
+	defer s.markMetrics(&start, &end, markStorage)
 	stateObject := s.GetOrNewStateObject(addr)
 	end = time.Now()
 	if stateObject != nil {
@@ -946,7 +946,7 @@ func (s *StateDB) CreateAccount(addr common.Address) {
 	start := time.Now()
 	newObj, prev := s.createObject(addr)
 	end := time.Now()
-	s.markMetrics(start, end, false)
+	s.markMetrics(&start, &end, false)
 	if prev != nil {
 		newObj.setBalance(prev.data.Balance)
 	}