diff --git a/internal/metarepos/raft_metadata_repository_test.go b/internal/metarepos/raft_metadata_repository_test.go
index 5d6e36427..276217b0d 100644
--- a/internal/metarepos/raft_metadata_repository_test.go
+++ b/internal/metarepos/raft_metadata_repository_test.go
@@ -235,7 +235,6 @@ func (clus *metadataRepoCluster) Close() error {
 	}
 	err = multierr.Append(err, os.RemoveAll(vtesting.TestRaftDir()))
 	err = multierr.Append(err, clus.portLease.Release())
-	testutil.GC()
 	return err
 }
 
diff --git a/internal/metarepos/storage_test.go b/internal/metarepos/storage_test.go
index 6a0ce24ab..219f81197 100644
--- a/internal/metarepos/storage_test.go
+++ b/internal/metarepos/storage_test.go
@@ -395,7 +395,6 @@ func TestStorageUpdateLS(t *testing.T) {
 		ms.Run()
 		Reset(func() {
 			ms.Close()
-			testutil.GC()
 		})
 
 		rep := 2
@@ -574,7 +573,6 @@ func TestStorageSealLS(t *testing.T) {
 		ms.Run()
 		Reset(func() {
 			ms.Close()
-			testutil.GC()
 		})
 
 		rep := 2
@@ -746,7 +744,6 @@ func TestStorageUnsealLS(t *testing.T) {
 		ms.Run()
 		Reset(func() {
 			ms.Close()
-			testutil.GC()
 		})
 
 		rep := 2
@@ -936,7 +933,6 @@ func TestStorageCopyOnWrite(t *testing.T) {
 		ms.Run()
 		Reset(func() {
 			ms.Close()
-			testutil.GC()
 		})
 
 		snID := types.StorageNodeID(time.Now().UnixNano())
@@ -956,7 +952,6 @@ func TestStorageCopyOnWrite(t *testing.T) {
 		ms.Run()
 		Reset(func() {
 			ms.Close()
-			testutil.GC()
 		})
 
 		snID := types.StorageNodeID(time.Now().UnixNano())
@@ -1049,7 +1044,6 @@ func TestStorageCopyOnWrite(t *testing.T) {
 		ms.Run()
 		Reset(func() {
 			ms.Close()
-			testutil.GC()
 		})
 
 		rep := 2
@@ -1156,7 +1150,6 @@ func TestStorageMetadataCache(t *testing.T) {
 		ms.Run()
 		Reset(func() {
 			ms.Close()
-			testutil.GC()
 		})
 
 		m := ms.GetMetadata()
@@ -1175,7 +1168,6 @@ func TestStorageMetadataCache(t *testing.T) {
 		ms.Run()
 		Reset(func() {
 			ms.Close()
-			testutil.GC()
 		})
 
 		snID := types.StorageNodeID(time.Now().UnixNano())
@@ -1246,7 +1238,6 @@ func TestStorageMetadataCache(t *testing.T) {
 		ms.Run()
 		Reset(func() {
 			ms.Close()
-			testutil.GC()
 		})
 
 		<-ch
@@ -1299,7 +1290,6 @@ func TestStorageStateMachineMerge(t *testing.T) {
 			ms.Run()
 			Reset(func() {
 				ms.Close()
-				testutil.GC()
 			})
 
 			snID += types.StorageNodeID(1)
@@ -1387,7 +1377,6 @@ func TestStorageSnapshot(t *testing.T) {
 		ms.Run()
 		Reset(func() {
 			ms.Close()
-			testutil.GC()
 		})
 
 		snID := types.StorageNodeID(time.Now().UnixNano())
@@ -1472,7 +1461,6 @@ func TestStorageApplySnapshot(t *testing.T) {
 		ms.Run()
 		Reset(func() {
 			ms.Close()
-			testutil.GC()
 		})
 
 		appliedIndex := uint64(0)
@@ -1550,7 +1538,6 @@ func TestStorageSnapshotRace(t *testing.T) {
 		ms.Run()
 		Reset(func() {
 			ms.Close()
-			testutil.GC()
 		})
 
 		n := 10000
@@ -1782,7 +1769,6 @@ func TestStorageRecoverStateMachine(t *testing.T) {
 		ms.Run()
 		Reset(func() {
 			ms.Close()
-			testutil.GC()
 		})
 
 		Convey("When recover state machine ", func(ctx C) {
diff --git a/pkg/util/testutil/testutil.go b/pkg/util/testutil/testutil.go
index f95ef2c1f..b0e8b232f 100644
--- a/pkg/util/testutil/testutil.go
+++ b/pkg/util/testutil/testutil.go
@@ -1,7 +1,6 @@
 package testutil
 
 import (
-	"fmt"
 	"reflect"
 	"runtime"
 	"strings"
@@ -93,20 +92,6 @@ func CompareWaitErrorN(factor int64, cmp func() (bool, error)) error {
 	return CompareWaitError(cmp, vtesting.TimeoutUnitTimesFactor(factor))
 }
 
-func GC() {
-	var ms runtime.MemStats
-	var gc runtime.MemStats
-
-	runtime.ReadMemStats(&ms)
-	runtime.GC()
-	runtime.ReadMemStats(&gc)
-
-	fmt.Printf("\nGC Stat:: %f -> %f mb, Sys: %f mb\n",
-		float32(ms.Alloc)/float32(1024*1024),
-		float32(gc.Alloc)/float32(1024*1024),
-		float32(gc.Sys)/float32(1024*1024))
-}
-
 func GetFunctionName(i interface{}) string {
 	a := runtime.FuncForPC(reflect.ValueOf(i).Pointer()).Name()
 	s := strings.Split(a, "/")
diff --git a/tests/it/cluster/client_test.go b/tests/it/cluster/client_test.go
index 199bb13b2..9bb88080e 100644
--- a/tests/it/cluster/client_test.go
+++ b/tests/it/cluster/client_test.go
@@ -14,7 +14,6 @@ import (
 	"github.com/stretchr/testify/require"
 
 	"github.com/kakao/varlog/pkg/types"
-	"github.com/kakao/varlog/pkg/util/testutil"
 	"github.com/kakao/varlog/pkg/varlog"
 	"github.com/kakao/varlog/pkg/varlog/x/mlsa"
 	"github.com/kakao/varlog/proto/varlogpb"
@@ -37,7 +36,6 @@ func TestClientNoLogStream(t *testing.T) {
 
 	defer func() {
 		clus.Close(t)
-		testutil.GC()
 	}()
 
 	topicID := clus.TopicIDs()[0]
@@ -59,7 +57,6 @@ func TestClientAppendToSubscribeTo(t *testing.T) {
 
 	defer func() {
 		clus.Close(t)
-		testutil.GC()
 	}()
 
 	topicID := clus.TopicIDs()[0]
@@ -125,7 +122,6 @@ func TestClientAppendTo(t *testing.T) {
 
 	defer func() {
 		clus.Close(t)
-		testutil.GC()
 	}()
 
 	// FIXME: remove this ugly code
@@ -158,7 +154,6 @@ func TestClientAppend(t *testing.T) {
 
 	defer func() {
 		clus.Close(t)
-		testutil.GC()
 	}()
 
 	topicID := clus.TopicIDs()[0]
@@ -226,7 +221,6 @@ func TestClientAppendCancel(t *testing.T) {
 
 	defer func() {
 		clus.Close(t)
-		testutil.GC()
 	}()
 
 	topicID := clus.TopicIDs()[0]
@@ -279,7 +273,6 @@ func TestClientSubscribe(t *testing.T) {
 
 	defer func() {
 		clus.Close(t)
-		testutil.GC()
 	}()
 
 	newMsg := func(glsn types.GLSN) string {
@@ -344,7 +337,6 @@ func TestClientTrim(t *testing.T) {
 
 	defer func() {
 		clus.Close(t)
-		testutil.GC()
 	}()
 
 	topicID := clus.TopicIDs()[0]
@@ -673,7 +665,6 @@ func TestClientAppendWithAllowedLogStream(t *testing.T) {
 
 	defer func() {
 		clus.Close(t)
-		testutil.GC()
 	}()
 
 	topicID := clus.TopicIDs()[0]
diff --git a/tests/it/failover/failover_test.go b/tests/it/failover/failover_test.go
index 8819f90d9..3edce4299 100644
--- a/tests/it/failover/failover_test.go
+++ b/tests/it/failover/failover_test.go
@@ -142,7 +142,6 @@ func TestVarlogFailoverSNBackupInitialFault(t *testing.T) {
 
 	defer func() {
 		clus.Close(t)
-		testutil.GC()
 	}()
 
 	topicID := clus.TopicIDs()[0]
diff --git a/tests/it/testenv.go b/tests/it/testenv.go
index bd062f1f0..87290a5f0 100644
--- a/tests/it/testenv.go
+++ b/tests/it/testenv.go
@@ -28,7 +28,6 @@ import (
 	"github.com/kakao/varlog/pkg/mrc"
 	"github.com/kakao/varlog/pkg/rpc"
 	"github.com/kakao/varlog/pkg/types"
-	"github.com/kakao/varlog/pkg/util/testutil"
 	"github.com/kakao/varlog/pkg/util/testutil/ports"
 	"github.com/kakao/varlog/pkg/varlog"
 	"github.com/kakao/varlog/proto/admpb"
@@ -1464,7 +1463,6 @@ func WithTestCluster(t *testing.T, opts []Option, f func(env *VarlogCluster)) fu
 
 		defer func() {
 			env.Close(t)
-			testutil.GC()
 		}()
 
 		f(env)