diff --git a/conf/config.yaml b/conf/config.yaml
index b7153fa04d..3b79882932 100644
--- a/conf/config.yaml
+++ b/conf/config.yaml
@@ -28,7 +28,7 @@ timesync:
 storage:
   driver: TIKV
   address: localhost
-  port: 0
+  port: 2379
   accesskey: ab
   secretkey:  dd
 
@@ -41,7 +41,7 @@ pulsar:
 reader:
   clientid: 1
   stopflag: -1
-  readerqueuesize: 1024
+  readerqueuesize: 10240
   searchchansize: 10000
   key2segchansize: 10000
   inserttopicstart: 0
diff --git a/core/unittest/test_c_api.cpp b/core/unittest/test_c_api.cpp
index d2618ac2f6..60419237af 100644
--- a/core/unittest/test_c_api.cpp
+++ b/core/unittest/test_c_api.cpp
@@ -289,6 +289,9 @@ TEST(CApiTest, GetMemoryUsageInBytesTest) {
   auto partition = NewPartition(collection, partition_name);
   auto segment = NewSegment(partition, 0);
 
+  auto old_memory_usage_size = GetMemoryUsageInBytes(segment);
+  std::cout << "old_memory_usage_size = " << old_memory_usage_size << std::endl;
+
   std::vector<char> raw_data;
   std::vector<uint64_t> timestamps;
   std::vector<int64_t> uids;
@@ -317,6 +320,8 @@ TEST(CApiTest, GetMemoryUsageInBytesTest) {
 
   auto memory_usage_size = GetMemoryUsageInBytes(segment);
 
+  std::cout << "new_memory_usage_size = " << memory_usage_size << std::endl;
+
   assert(memory_usage_size == 1898459);
 
   DeleteCollection(collection);
diff --git a/proxy/src/message_client/ClientV2.cpp b/proxy/src/message_client/ClientV2.cpp
index d2cb29d825..df07ef6f01 100644
--- a/proxy/src/message_client/ClientV2.cpp
+++ b/proxy/src/message_client/ClientV2.cpp
@@ -178,7 +178,6 @@ Status MsgClientV2::SendMutMessage(const milvus::grpc::InsertParam &request,
     auto channel_id = makeHash(&uid, sizeof(uint64_t)) % topic_num;
     try {
       mut_msg.set_segment_id(segment_id(request.collection_name(), channel_id, timestamp));
-      printf("%ld \n", mut_msg.segment_id());
       mut_msg.mutable_rows_data()->CopyFrom(request.rows_data(i));
       mut_msg.mutable_extra_params()->CopyFrom(request.extra_params());
 
diff --git a/reader/read_node/meta.go b/reader/read_node/meta.go
index c8e4be19dd..bda1a9638d 100644
--- a/reader/read_node/meta.go
+++ b/reader/read_node/meta.go
@@ -104,6 +104,7 @@ func (node *QueryNode) processSegmentCreate(id string, value string) {
 	}
 	printSegmentStruct(segment)
 
+	// TODO: fix this after channel range config finished
 	//if !isSegmentChannelRangeInQueryNodeChannelRange(segment) {
 	//	return
 	//}
@@ -117,7 +118,6 @@ func (node *QueryNode) processSegmentCreate(id string, value string) {
 			newSegment := partition.NewSegment(newSegmentID)
 			newSegment.SegmentStatus = SegmentOpened
 			newSegment.SegmentCloseTime = segment.CloseTimeStamp
-			partition.OpenedSegments = append(partition.OpenedSegments, newSegment)
 			node.SegmentsMap[newSegmentID] = newSegment
 		}
 	}
@@ -147,6 +147,7 @@ func (node *QueryNode) processSegmentModify(id string, value string) {
 	}
 	printSegmentStruct(segment)
 
+	// TODO: fix this after channel range config finished
 	//if !isSegmentChannelRangeInQueryNodeChannelRange(segment) {
 	//	return
 	//}
diff --git a/reader/read_node/partition.go b/reader/read_node/partition.go
index 01006edd50..d308593548 100644
--- a/reader/read_node/partition.go
+++ b/reader/read_node/partition.go
@@ -16,8 +16,7 @@ import "C"
 type Partition struct {
 	PartitionPtr   C.CPartition
 	PartitionName  string
-	OpenedSegments []*Segment
-	ClosedSegments []*Segment
+	Segments []*Segment
 }
 
 func (p *Partition) NewSegment(segmentId int64) *Segment {
@@ -28,7 +27,7 @@ func (p *Partition) NewSegment(segmentId int64) *Segment {
 	segmentPtr := C.NewSegment(p.PartitionPtr, C.ulong(segmentId))
 
 	var newSegment = &Segment{SegmentPtr: segmentPtr, SegmentId: segmentId}
-	p.OpenedSegments = append(p.OpenedSegments, newSegment)
+	p.Segments = append(p.Segments, newSegment)
 	return newSegment
 }
 
diff --git a/reader/read_node/query_node.go b/reader/read_node/query_node.go
index 7a9cfe7e25..0c163ec55e 100644
--- a/reader/read_node/query_node.go
+++ b/reader/read_node/query_node.go
@@ -21,6 +21,7 @@ import (
 	"sort"
 	"sync"
 	"sync/atomic"
+	"time"
 
 	msgPb "github.com/czs007/suvlim/pkg/master/grpc/message"
 	"github.com/czs007/suvlim/pkg/master/kv"
@@ -65,6 +66,12 @@ type QueryInfo struct {
 	FieldName  string `json:"field_name"`
 }
 
+type MsgCounter struct {
+	InsertCounter int64
+	DeleteCounter int64
+	SearchCounter int64
+}
+
 type QueryNode struct {
 	QueryNodeId   uint64
 	Collections   []*Collection
@@ -77,6 +84,7 @@ type QueryNode struct {
 	deleteData           DeleteData
 	insertData           InsertData
 	kvBase               *kv.EtcdKVBase
+	msgCounter           *MsgCounter
 }
 
 func NewQueryNode(queryNodeId uint64, timeSync uint64) *QueryNode {
@@ -99,6 +107,12 @@ func NewQueryNode(queryNodeId uint64, timeSync uint64) *QueryNode {
 		validSearchBuffer:       make([]bool, 0),
 	}
 
+	msgCounter := MsgCounter{
+		InsertCounter: 0,
+		DeleteCounter: 0,
+		SearchCounter: 0,
+	}
+
 	return &QueryNode{
 		QueryNodeId:       queryNodeId,
 		Collections:       nil,
@@ -106,6 +120,7 @@ func NewQueryNode(queryNodeId uint64, timeSync uint64) *QueryNode {
 		messageClient:     &mc,
 		queryNodeTimeSync: queryNodeTimeSync,
 		buffer:            buffer,
+		msgCounter:        &msgCounter,
 	}
 }
 
@@ -132,6 +147,12 @@ func CreateQueryNode(queryNodeId uint64, timeSync uint64, mc *message_client.Mes
 		validSearchBuffer:       make([]bool, 0),
 	}
 
+	msgCounter := MsgCounter{
+		InsertCounter: 0,
+		DeleteCounter: 0,
+		SearchCounter: 0,
+	}
+
 	return &QueryNode{
 		QueryNodeId:       queryNodeId,
 		Collections:       nil,
@@ -139,6 +160,7 @@ func CreateQueryNode(queryNodeId uint64, timeSync uint64, mc *message_client.Mes
 		messageClient:     mc,
 		queryNodeTimeSync: queryNodeTimeSync,
 		buffer:            buffer,
+		msgCounter:        &msgCounter,
 	}
 }
 
@@ -168,9 +190,9 @@ func (node *QueryNode) QueryNodeDataInit() {
 
 func (node *QueryNode) NewCollection(collectionID uint64, collectionName string, schemaConfig string) *Collection {
 	/*
-	void
-	UpdateIndexes(CCollection c_collection, const char *index_string);
-	 */
+		void
+		UpdateIndexes(CCollection c_collection, const char *index_string);
+	*/
 	cName := C.CString(collectionName)
 	cSchema := C.CString(schemaConfig)
 	collection := C.NewCollection(cName, cSchema)
@@ -183,9 +205,9 @@ func (node *QueryNode) NewCollection(collectionID uint64, collectionName string,
 
 func (node *QueryNode) DeleteCollection(collection *Collection) {
 	/*
-	void
-	DeleteCollection(CCollection collection);
-	 */
+		void
+		DeleteCollection(CCollection collection);
+	*/
 	cPtr := collection.CollectionPtr
 	C.DeleteCollection(cPtr)
 
@@ -194,8 +216,8 @@ func (node *QueryNode) DeleteCollection(collection *Collection) {
 
 func (node *QueryNode) UpdateIndexes(collection *Collection, indexConfig *string) {
 	/*
-	void
-	UpdateIndexes(CCollection c_collection, const char *index_string);
+		void
+		UpdateIndexes(CCollection c_collection, const char *index_string);
 	*/
 	cCollectionPtr := collection.CollectionPtr
 	cIndexConfig := C.CString(*indexConfig)
@@ -222,8 +244,50 @@ func (node *QueryNode) InitQueryNodeCollection() {
 ////////////////////////////////////////////////////////////////////////////////////////////////////
 
 func (node *QueryNode) RunInsertDelete(wg *sync.WaitGroup) {
+	const Debug = true
+	const CountMsgNum = 1000 * 1000
+
+	if Debug {
+		var printFlag = true
+		var startTime = true
+		var start time.Time
+
+		for {
+			var msgLen = node.PrepareBatchMsg()
+			var timeRange = TimeRange{node.messageClient.TimeSyncStart(), node.messageClient.TimeSyncEnd()}
+			assert.NotEqual(nil, 0, timeRange.timestampMin)
+			assert.NotEqual(nil, 0, timeRange.timestampMax)
+
+			if msgLen[0] == 0 && len(node.buffer.InsertDeleteBuffer) <= 0 {
+				continue
+			}
+
+			if startTime {
+				fmt.Println("============> Start Test <============")
+				startTime = false
+				start = time.Now()
+			}
+
+			node.QueryNodeDataInit()
+			node.MessagesPreprocess(node.messageClient.InsertOrDeleteMsg, timeRange)
+			//fmt.Println("MessagesPreprocess Done")
+			node.WriterDelete()
+			node.PreInsertAndDelete()
+			//fmt.Println("PreInsertAndDelete Done")
+			node.DoInsertAndDelete()
+			//fmt.Println("DoInsertAndDelete Done")
+			node.queryNodeTimeSync.UpdateSearchTimeSync(timeRange)
+
+			// Test insert time
+			if printFlag && node.msgCounter.InsertCounter >= CountMsgNum {
+				printFlag = false
+				timeSince := time.Since(start)
+				fmt.Println("============> Do", node.msgCounter.InsertCounter, "Insert in", timeSince, "<============")
+			}
+		}
+	}
+
 	for {
-		// TODO: get timeRange from message client
 		var msgLen = node.PrepareBatchMsg()
 		var timeRange = TimeRange{node.messageClient.TimeSyncStart(), node.messageClient.TimeSyncEnd()}
 		assert.NotEqual(nil, 0, timeRange.timestampMin)
@@ -444,6 +508,7 @@ func (node *QueryNode) DoInsert(segmentID int64, records *[][]byte, wg *sync.Wai
 	timestamps := node.insertData.insertTimestamps[segmentID]
 	offsets := node.insertData.insertOffset[segmentID]
 
+	node.msgCounter.InsertCounter += int64(len(ids))
 	err = targetSegment.SegmentInsert(offsets, &ids, &timestamps, records)
 	if err != nil {
 		fmt.Println(err.Error())
@@ -463,6 +528,7 @@ func (node *QueryNode) DoDelete(segmentID int64, deleteIDs *[]int64, deleteTimes
 
 	offset := node.deleteData.deleteOffset[segmentID]
 
+	node.msgCounter.DeleteCounter += int64(len(*deleteIDs))
 	err = segment.SegmentDelete(offset, deleteIDs, deleteTimestamps)
 	if err != nil {
 		fmt.Println(err.Error())
@@ -487,17 +553,18 @@ func (node *QueryNode) QueryJson2Info(queryJson *string) *QueryInfo {
 }
 
 func (node *QueryNode) Search(searchMessages []*msgPb.SearchMsg) msgPb.Status {
-	// TODO: use client id to publish results to different clients
-	// var clientId = (*(searchMessages[0])).ClientId
 
 	type SearchResultTmp struct {
 		ResultId       int64
 		ResultDistance float32
 	}
 
+	node.msgCounter.SearchCounter += int64(len(searchMessages))
+
 	// Traverse all messages in the current messageClient.
 	// TODO: Do not receive batched search requests
 	for _, msg := range searchMessages {
+		var clientId = msg.ClientId
 		var resultsTmp = make([]SearchResultTmp, 0)
 
 		var timestamp = msg.Timestamp
@@ -522,7 +589,7 @@ func (node *QueryNode) Search(searchMessages []*msgPb.SearchMsg) msgPb.Status {
 				fmt.Println(err.Error())
 				return msgPb.Status{ErrorCode: 1}
 			}
-			fmt.Println(res.ResultIds)
+
 			for i := 0; i < len(res.ResultIds); i++ {
 				resultsTmp = append(resultsTmp, SearchResultTmp{ResultId: res.ResultIds[i], ResultDistance: res.ResultDistances[i]})
 			}
@@ -543,6 +610,7 @@ func (node *QueryNode) Search(searchMessages []*msgPb.SearchMsg) msgPb.Status {
 			Entities:  &entities,
 			Distances: make([]float32, 0),
 			QueryId:   msg.Uid,
+			ClientId:  clientId,
 		}
 		for _, res := range resultsTmp {
 			results.Entities.Ids = append(results.Entities.Ids, res.ResultId)
diff --git a/reader/read_node/reader.go b/reader/read_node/reader.go
index 2b0d596d63..f9c9927dd5 100644
--- a/reader/read_node/reader.go
+++ b/reader/read_node/reader.go
@@ -3,6 +3,7 @@ package reader
 import (
 	"context"
 	"github.com/czs007/suvlim/reader/message_client"
+	"log"
 	"sync"
 )
 
@@ -15,11 +16,17 @@ func StartQueryNode(pulsarURL string) {
 	ctx := context.Background()
 
 	// Segments Services
-	//go qn.SegmentManagementService()
+	go qn.SegmentManagementService()
 	go qn.SegmentStatisticService()
 
 	wg := sync.WaitGroup{}
-	qn.InitFromMeta()
+	err := qn.InitFromMeta()
+
+	if err != nil {
+		log.Printf("Init query node from meta failed")
+		return
+	}
+
 	wg.Add(3)
 	go qn.RunMetaService(ctx, &wg)
 	go qn.RunInsertDelete(&wg)
diff --git a/reader/read_node/segment.go b/reader/read_node/segment.go
index 8c452686b3..1dac55875c 100644
--- a/reader/read_node/segment.go
+++ b/reader/read_node/segment.go
@@ -73,6 +73,8 @@ func (s *Segment) CloseSegment(collection* Collection) error {
 	int
 	Close(CSegmentBase c_segment);
 	*/
+	fmt.Println("Closing segment :", s.SegmentId)
+
 	var status = C.Close(s.SegmentPtr)
 	s.SegmentStatus = SegmentClosed
 
@@ -82,11 +84,13 @@ func (s *Segment) CloseSegment(collection* Collection) error {
 
 	// Build index after closing segment
 	s.SegmentStatus = SegmentIndexing
+	fmt.Println("Building index...")
 	s.buildIndex(collection)
 
 	// TODO: remove redundant segment indexed status
 	// Change segment status to indexed
 	s.SegmentStatus = SegmentIndexed
+	fmt.Println("Segment closed and indexed")
 
 	return nil
 }
diff --git a/reader/read_node/segment_service.go b/reader/read_node/segment_service.go
index 37bf33665c..ea821a04fb 100644
--- a/reader/read_node/segment_service.go
+++ b/reader/read_node/segment_service.go
@@ -13,20 +13,19 @@ func (node *QueryNode) SegmentsManagement() {
 	//node.queryNodeTimeSync.UpdateTSOTimeSync()
 	//var timeNow = node.queryNodeTimeSync.TSOTimeSync
 
-	timeNow := node.messageClient.GetTimeNow()
+	timeNow := node.messageClient.GetTimeNow() >> 18
 
 	for _, collection := range node.Collections {
 		for _, partition := range collection.Partitions {
-			for _, oldSegment := range partition.OpenedSegments {
-				// TODO: check segment status
-				if timeNow >= oldSegment.SegmentCloseTime {
-					// close old segment and move it into partition.ClosedSegments
-					if oldSegment.SegmentStatus != SegmentOpened {
-						log.Println("Never reach here, Opened segment cannot be closed")
-						continue
-					}
-					go oldSegment.CloseSegment(collection)
-					partition.ClosedSegments = append(partition.ClosedSegments, oldSegment)
+			for _, segment := range partition.Segments {
+				if segment.SegmentStatus != SegmentOpened {
+					log.Println("Segment have been closed")
+					continue
+				}
+
+				fmt.Println("timeNow = ", timeNow, "SegmentCloseTime = ", segment.SegmentCloseTime)
+				if timeNow >= segment.SegmentCloseTime {
+					go segment.CloseSegment(collection)
 				}
 			}
 		}
@@ -34,7 +33,7 @@ func (node *QueryNode) SegmentsManagement() {
 }
 
 func (node *QueryNode) SegmentManagementService() {
-	sleepMillisecondTime := 1000
+	sleepMillisecondTime := 3000
 	fmt.Println("do segments management in ", strconv.Itoa(sleepMillisecondTime), "ms")
 	for {
 		time.Sleep(time.Duration(sleepMillisecondTime) * time.Millisecond)
@@ -81,6 +80,8 @@ func (node *QueryNode) SegmentStatistic(sleepMillisecondTime int) {
 		statisticData = append(statisticData, stat)
 	}
 
+	fmt.Println("Publish segment statistic")
+	fmt.Println(statisticData)
 	var status = node.PublicStatistic(&statisticData)
 	if status.ErrorCode != msgPb.ErrorCode_SUCCESS {
 		log.Printf("Publish segments statistic failed")
@@ -88,7 +89,7 @@ func (node *QueryNode) SegmentStatistic(sleepMillisecondTime int) {
 }
 
 func (node *QueryNode) SegmentStatisticService() {
-	sleepMillisecondTime := 1000
+	sleepMillisecondTime := 3000
 	fmt.Println("do segments statistic in ", strconv.Itoa(sleepMillisecondTime), "ms")
 	for {
 		time.Sleep(time.Duration(sleepMillisecondTime) * time.Millisecond)
diff --git a/sdk/examples/simple/insert.cpp b/sdk/examples/simple/insert.cpp
index 1fe54e449d..5971b4c27c 100644
--- a/sdk/examples/simple/insert.cpp
+++ b/sdk/examples/simple/insert.cpp
@@ -21,7 +21,7 @@
 #include "interface/ConnectionImpl.h"
 #include "utils/TimeRecorder.h"
 
-const int N = 100;
+const int N = 200000;
 const int DIM = 16;
 const int LOOP = 10;
 
diff --git a/storage/internal/tikv/tikv_store.go b/storage/internal/tikv/tikv_store.go
index 902b63e84c..84df3eecc8 100644
--- a/storage/internal/tikv/tikv_store.go
+++ b/storage/internal/tikv/tikv_store.go
@@ -3,6 +3,7 @@ package tikv_driver
 import (
 	"context"
 	"errors"
+	"github.com/czs007/suvlim/conf"
 	. "github.com/czs007/suvlim/storage/internal/tikv/codec"
 	. "github.com/czs007/suvlim/storage/pkg/types"
 	"github.com/tikv/client-go/config"
@@ -86,7 +87,8 @@ type TikvStore struct {
 }
 
 func NewTikvStore(ctx context.Context) (*TikvStore, error) {
-	pdAddrs := []string{"127.0.0.1:2379"}
+	var pdAddress0 = conf.Config.Storage.Address + ":" + strconv.FormatInt(int64(conf.Config.Storage.Port), 10)
+	pdAddrs := []string{pdAddress0}
 	conf := config.Default()
 	client, err := rawkv.NewClient(ctx, pdAddrs, conf)
 	if err != nil {
diff --git a/writer/main.go b/writer/main.go
index 7a937054a3..f862775c8d 100644
--- a/writer/main.go
+++ b/writer/main.go
@@ -10,6 +10,7 @@ import (
 	"log"
 	"strconv"
 	"sync"
+	"time"
 )
 
 func main() {
@@ -31,10 +32,49 @@ func main() {
 		log.Fatal(err)
 	}
 
+	msgCounter := write_node.MsgCounter{
+		InsertCounter: 0,
+		DeleteCounter: 0,
+	}
+
 	wn := write_node.WriteNode{
 		KvStore:       &kv,
 		MessageClient: &mc,
 		TimeSync:      100,
+		MsgCounter:    &msgCounter,
+	}
+
+	const Debug = true
+	const CountMsgNum = 1000 * 1000
+
+	if Debug {
+		var printFlag = true
+		var startTime = true
+		var start time.Time
+
+		for {
+			if ctx.Err() != nil {
+				break
+			}
+			msgLength := wn.MessageClient.PrepareBatchMsg()
+			if msgLength > 0 {
+				if startTime {
+					fmt.Println("============> Start Test <============")
+					startTime = false
+					start = time.Now()
+				}
+
+				wn.DoWriteNode(ctx, &wg)
+				fmt.Println("write node do a batch message, storage len: ", msgLength)
+			}
+
+			// Test insert time
+			if printFlag && wn.MsgCounter.InsertCounter >= CountMsgNum {
+				printFlag = false
+				timeSince := time.Since(start)
+				fmt.Println("============> Do", wn.MsgCounter.InsertCounter, "Insert in", timeSince, "<============")
+			}
+		}
 	}
 
 	//TODO:: start a gorouter for searchById
diff --git a/writer/write_node/writer_node.go b/writer/write_node/writer_node.go
index 0ecb9eb3e3..f74e9dbbb1 100644
--- a/writer/write_node/writer_node.go
+++ b/writer/write_node/writer_node.go
@@ -17,11 +17,16 @@ type SegmentIdInfo struct {
 	SegmentIds     []string
 }
 
+type MsgCounter struct {
+	InsertCounter int64
+	DeleteCounter int64
+}
 
 type WriteNode struct {
 	KvStore       *types.Store
 	MessageClient *message_client.MessageClient
 	TimeSync      uint64
+	MsgCounter    *MsgCounter
 }
 
 func (wn *WriteNode) Close() {
@@ -34,10 +39,17 @@ func NewWriteNode(ctx context.Context,
 	timeSync uint64) (*WriteNode, error) {
 	kv, err := storage.NewStore(context.Background(), types.MinIODriver)
 	mc := message_client.MessageClient{}
+
+	msgCounter := MsgCounter{
+		InsertCounter: 0,
+		DeleteCounter: 0,
+	}
+
 	return &WriteNode{
 		KvStore:       &kv,
 		MessageClient: &mc,
 		TimeSync:      timeSync,
+		MsgCounter:    &msgCounter,
 	}, err
 }
 
@@ -58,6 +70,8 @@ func (wn *WriteNode) InsertBatchData(ctx context.Context, data []*msgpb.InsertOr
 		timeStamp = append(timeStamp, uint64(data[i].Timestamp))
 	}
 
+	wn.MsgCounter.InsertCounter += int64(len(timeStamp))
+
 	error := (*wn.KvStore).PutRows(ctx, prefixKeys, binaryData, suffixKeys, timeStamp)
 	if error != nil {
 		fmt.Println("Can't insert data!")
@@ -89,13 +103,15 @@ func (wn *WriteNode) DeleteBatchData(ctx context.Context, data []*msgpb.InsertOr
 		}
 
 		segmentInfo := msgpb.Key2SegMsg{
-			Uid: data[i].Uid,
+			Uid:       data[i].Uid,
 			SegmentId: segmentIds,
 			Timestamp: data[i].Timestamp,
 		}
 		wn.MessageClient.Send(ctx, segmentInfo)
 	}
 
+	wn.MsgCounter.DeleteCounter += int64(len(timeStamps))
+
 	err := (*wn.KvStore).DeleteRows(ctx, prefixKeys, timeStamps)
 	if err != nil {
 		fmt.Println("Can't delete data")