diff --git a/cmake/taostools_CMakeLists.txt.in b/cmake/taostools_CMakeLists.txt.in
index 7247200fe7..b05ed20d7e 100644
--- a/cmake/taostools_CMakeLists.txt.in
+++ b/cmake/taostools_CMakeLists.txt.in
@@ -2,7 +2,7 @@
 # taos-tools
 ExternalProject_Add(taos-tools
         GIT_REPOSITORY https://github.com/taosdata/taos-tools.git
-        GIT_TAG 4a4027c
+        GIT_TAG sml/json
         SOURCE_DIR "${TD_SOURCE_DIR}/tools/taos-tools"
         BINARY_DIR ""
         #BUILD_IN_SOURCE TRUE
diff --git a/source/client/src/clientSml.c b/source/client/src/clientSml.c
index 9f03ed3656..2f0e4683b0 100644
--- a/source/client/src/clientSml.c
+++ b/source/client/src/clientSml.c
@@ -1376,7 +1376,7 @@ static int smlProcess(SSmlHandle *info, char *lines[], char *rawLine, char *rawL
     return code;
   }
 
-  info->cost.lineNum = numLines;
+  info->cost.lineNum = info->lineNum;
   info->cost.numOfSTables = nodeListSize(info->superTables);
   info->cost.numOfCTables = nodeListSize(info->childTables);
 
@@ -1463,10 +1463,9 @@ TAOS_RES *taos_schemaless_insert_inner(TAOS *taos, char *lines[], char *rawLine,
   request->code = code;
   info->cost.endTime = taosGetTimestampUs();
   info->cost.code = code;
-  smlPrintStatisticInfo(info);
+//  smlPrintStatisticInfo(info);
 
 end:
-  uDebug("resultend:%s", request->msgBuf);
   smlDestroyInfo(info);
   return (TAOS_RES *)request;
 }
diff --git a/source/client/src/clientSmlJson.c b/source/client/src/clientSmlJson.c
index 1b4231df4e..106d4e98ca 100644
--- a/source/client/src/clientSmlJson.c
+++ b/source/client/src/clientSmlJson.c
@@ -28,12 +28,7 @@ int32_t is_same_child_table_json(const void *a, const void *b){
   return (cJSON_Compare((const cJSON *)a, (const cJSON *)b, true)) ? 0 : 1;
 }
 
-static int32_t smlParseMetricFromJSON(SSmlHandle *info, cJSON *root, SSmlLineInfo *elements) {
-  cJSON *metric = cJSON_GetObjectItem(root, "metric");
-  if (!cJSON_IsString(metric)) {
-    return TSDB_CODE_TSC_INVALID_JSON;
-  }
-
+static inline int32_t smlParseMetricFromJSON(SSmlHandle *info, cJSON *metric, SSmlLineInfo *elements) {
   elements->measureLen = strlen(metric->valuestring);
   if (IS_INVALID_TABLE_LEN(elements->measureLen)) {
     uError("OTD:0x%" PRIx64 " Metric lenght is 0 or large than 192", info->id);
@@ -110,7 +105,7 @@ static int64_t smlParseTSFromJSONObj(SSmlHandle *info, cJSON *root, int32_t toPr
   }
 }
 
-static uint8_t smlGetTimestampLen(int64_t num) {
+static inline uint8_t smlGetTimestampLen(int64_t num) {
   uint8_t len = 0;
   while ((num /= 10) != 0) {
     len++;
@@ -119,10 +114,9 @@ static uint8_t smlGetTimestampLen(int64_t num) {
   return len;
 }
 
-static int64_t smlParseTSFromJSON(SSmlHandle *info, cJSON *root) {
+static int64_t smlParseTSFromJSON(SSmlHandle *info, cJSON *timestamp) {
   // Timestamp must be the first KV to parse
   int32_t toPrecision = info->currSTableMeta ? info->currSTableMeta->tableInfo.precision : TSDB_TIME_PRECISION_NANO;
-  cJSON *timestamp = cJSON_GetObjectItem(root, "timestamp");
   if (cJSON_IsNumber(timestamp)) {
     // timestamp value 0 indicates current system time
     double timeDouble = timestamp->valuedouble;
@@ -140,6 +134,7 @@ static int64_t smlParseTSFromJSON(SSmlHandle *info, cJSON *root) {
     }
 
     uint8_t tsLen = smlGetTimestampLen((int64_t)timeDouble);
+
     int8_t fromPrecision = smlGetTsTypeByLen(tsLen);
     if (unlikely(fromPrecision == -1)) {
       smlBuildInvalidDataMsg(&info->msgBuf,
@@ -357,39 +352,20 @@ static int32_t smlParseValueFromJSON(cJSON *root, SSmlKv *kv) {
   return TSDB_CODE_SUCCESS;
 }
 
-static int32_t smlParseColsFromJSON(cJSON *root, SSmlKv *kv) {
-  cJSON *metricVal = cJSON_GetObjectItem(root, "value");
-  if (metricVal == NULL) {
-    return TSDB_CODE_TSC_INVALID_JSON;
-  }
-
-  int32_t ret = smlParseValueFromJSON(metricVal, kv);
-  if (ret != TSDB_CODE_SUCCESS) {
-    return ret;
-  }
-
-  return TSDB_CODE_SUCCESS;
-}
-
-static int32_t smlParseTagsFromJSON(SSmlHandle *info, cJSON *root, SSmlLineInfo *elements) {
+static int32_t smlParseTagsFromJSON(SSmlHandle *info, cJSON *tags, SSmlLineInfo *elements) {
   int32_t ret = TSDB_CODE_SUCCESS;
 
-  cJSON *tags = cJSON_GetObjectItem(root, "tags");
-  if (unlikely(tags == NULL || tags->type != cJSON_Object)) {
-    return TSDB_CODE_TSC_INVALID_JSON;
-  }
-
   // add measure to tags to identify one child table
-  cJSON *cMeasure = cJSON_AddStringToObject(tags, JSON_METERS_NAME, elements->measure);
-  if(unlikely(cMeasure == NULL)){
-    return TSDB_CODE_TSC_INVALID_JSON;
-  }
+//  cJSON *cMeasure = cJSON_AddStringToObject(tags, JSON_METERS_NAME, elements->measure);
+//  if(unlikely(cMeasure == NULL)){
+//    return TSDB_CODE_TSC_INVALID_JSON;
+//  }
   elements->tags = (char*)tags;
   if(is_same_child_table_json(elements->tags, info->preLine.tags) == 0){
-    cJSON_DeleteItemFromObjectCaseSensitive(tags, JSON_METERS_NAME);
+//    cJSON_DeleteItemFromObjectCaseSensitive(tags, JSON_METERS_NAME);
     return TSDB_CODE_SUCCESS;
   }
-  cJSON_DeleteItemFromObjectCaseSensitive(tags, JSON_METERS_NAME);
+//  cJSON_DeleteItemFromObjectCaseSensitive(tags, JSON_METERS_NAME);
 
   bool isSameMeasure = IS_SAME_SUPER_TABLE;
 
@@ -529,40 +505,62 @@ static int32_t smlParseTagsFromJSON(SSmlHandle *info, cJSON *root, SSmlLineInfo
   return ret;
 }
 
+const char *jsonName[OTD_JSON_FIELDS_NUM] = {"metric", "timestamp", "value", "tags"};
+static int32_t smlGetJsonElements(cJSON *root, cJSON ***marks){
+  cJSON *child = root->child;
+
+  for (int i = 0; i < OTD_JSON_FIELDS_NUM; ++i) {
+    while(child != NULL)
+    {
+      if(strcasecmp(child->string, jsonName[i]) == 0){
+        *marks[i] = child;
+        break;
+      }
+      child = child->next;
+    }
+    if(*marks[i] == NULL){
+      uError("smlGetJsonElements error, not find mark:%s", jsonName[i]);
+      return -1;
+    }
+  }
+  return TSDB_CODE_SUCCESS;
+}
+
 static int32_t smlParseJSONString(SSmlHandle *info, cJSON *root, SSmlLineInfo *elements) {
   int32_t ret = TSDB_CODE_SUCCESS;
 
-  int32_t size = cJSON_GetArraySize(root);
-  // outmost json fields has to be exactly 4
-  if (unlikely(size != OTD_JSON_FIELDS_NUM)) {
-    uError("OTD:0x%" PRIx64 " Invalid number of JSON fields in data point %d", info->id, size);
-    return TSDB_CODE_TSC_INVALID_JSON;
+  cJSON *metricJson = NULL;
+  cJSON *tsJson = NULL;
+  cJSON *valueJson = NULL;
+  cJSON *tagsJson = NULL;
+
+  cJSON **marks[OTD_JSON_FIELDS_NUM] = {&metricJson, &tsJson, &valueJson, &tagsJson};
+  ret = smlGetJsonElements(root, marks);
+  if (unlikely(ret != TSDB_CODE_SUCCESS)) {
+    return ret;
   }
 
   // Parse metric
-  ret = smlParseMetricFromJSON(info, root, elements);
+  ret = smlParseMetricFromJSON(info, metricJson, elements);
   if (unlikely(ret != TSDB_CODE_SUCCESS)) {
     uError("OTD:0x%" PRIx64 " Unable to parse metric from JSON payload", info->id);
     return ret;
   }
-  uDebug("OTD:0x%" PRIx64 " Parse metric from JSON payload finished", info->id);
 
   // Parse metric value
   SSmlKv kv = {.key = VALUE, .keyLen = VALUE_LEN};
-  ret = smlParseColsFromJSON(root, &kv);
+  ret = smlParseValueFromJSON(valueJson, &kv);
   if (unlikely(ret)) {
     uError("OTD:0x%" PRIx64 " Unable to parse metric value from JSON payload", info->id);
     return ret;
   }
-  uDebug("OTD:0x%" PRIx64 " Parse metric value from JSON payload finished", info->id);
 
   // Parse tags
-  ret = smlParseTagsFromJSON(info, root, elements);
+  ret = smlParseTagsFromJSON(info, tagsJson, elements);
   if (unlikely(ret)) {
     uError("OTD:0x%" PRIx64 " Unable to parse tags from JSON payload", info->id);
     return ret;
   }
-  uDebug("OTD:0x%" PRIx64 " Parse tags from JSON payload finished", info->id);
 
   if(unlikely(info->reRun)){
     return TSDB_CODE_SUCCESS;
@@ -570,12 +568,11 @@ static int32_t smlParseJSONString(SSmlHandle *info, cJSON *root, SSmlLineInfo *e
 
   // Parse timestamp
   // notice!!! put ts back to tag to ensure get meta->precision
-  int64_t ts = smlParseTSFromJSON(info, root);
+  int64_t ts = smlParseTSFromJSON(info, tsJson);
   if (unlikely(ts < 0)) {
     uError("OTD:0x%" PRIx64 " Unable to parse timestamp from JSON payload", info->id);
     return TSDB_CODE_INVALID_TIMESTAMP;
   }
-  uDebug("OTD:0x%" PRIx64 " Parse timestamp from JSON payload finished", info->id);
   SSmlKv kvTs = { .key = TS, .keyLen = TS_LEN, .type = TSDB_DATA_TYPE_TIMESTAMP, .i = ts, .length = (size_t)tDataTypes[TSDB_DATA_TYPE_TIMESTAMP].bytes};
 
   if(info->dataFormat){
@@ -627,14 +624,16 @@ int32_t smlParseJSON(SSmlHandle *info, char *payload) {
     return TSDB_CODE_TSC_INVALID_JSON;
   }
 
-  int32_t i = 0;
-  while (i < payloadNum) {
-    cJSON *dataPoint = (payloadNum == 1 && cJSON_IsObject(info->root)) ? info->root : cJSON_GetArrayItem(info->root, i);
+  cJSON *head = (payloadNum == 1 && cJSON_IsObject(info->root)) ? info->root : info->root->child;
+
+  int cnt = 0;
+  cJSON *dataPoint = head;
+  while (dataPoint) {
     if(info->dataFormat) {
       SSmlLineInfo element = {0};
       ret = smlParseJSONString(info, dataPoint, &element);
     }else{
-      ret = smlParseJSONString(info, dataPoint, info->lines + i);
+      ret = smlParseJSONString(info, dataPoint, info->lines + cnt);
     }
     if (unlikely(ret != TSDB_CODE_SUCCESS)) {
       uError("SML:0x%" PRIx64 " Invalid JSON Payload", info->id);
@@ -642,7 +641,8 @@ int32_t smlParseJSON(SSmlHandle *info, char *payload) {
     }
 
     if(unlikely(info->reRun)){
-      i = 0;
+      cnt = 0;
+      dataPoint = head;
       info->lineNum = payloadNum;
       ret = smlClearForRerun(info);
       if(ret != TSDB_CODE_SUCCESS){
@@ -650,7 +650,66 @@ int32_t smlParseJSON(SSmlHandle *info, char *payload) {
       }
       continue;
     }
-    i++;
+    cnt++;
+    dataPoint = dataPoint->next;
+  }
+
+  return TSDB_CODE_SUCCESS;
+}
+
+int32_t smlParseJSONOld(SSmlHandle *info, char *payload) {
+  int32_t payloadNum = 0;
+  int32_t ret = TSDB_CODE_SUCCESS;
+
+  if (unlikely(payload == NULL)) {
+    uError("SML:0x%" PRIx64 " empty JSON Payload", info->id);
+    return TSDB_CODE_TSC_INVALID_JSON;
+  }
+
+  info->root = cJSON_Parse(payload);
+  if (unlikely(info->root == NULL)) {
+    uError("SML:0x%" PRIx64 " parse json failed:%s", info->id, payload);
+    return TSDB_CODE_TSC_INVALID_JSON;
+  }
+
+  // multiple data points must be sent in JSON array
+  if (cJSON_IsArray(info->root)) {
+    payloadNum = cJSON_GetArraySize(info->root);
+  } else if (cJSON_IsObject(info->root)) {
+    payloadNum = 1;
+  } else {
+    uError("SML:0x%" PRIx64 " Invalid JSON Payload", info->id);
+    return TSDB_CODE_TSC_INVALID_JSON;
+  }
+
+  cJSON *head = (payloadNum == 1 && cJSON_IsObject(info->root)) ? info->root : info->root->child;
+
+  int cnt = 0;
+  cJSON *dataPoint = head;
+  while (dataPoint) {
+    if(info->dataFormat) {
+      SSmlLineInfo element = {0};
+      ret = smlParseJSONString(info, dataPoint, &element);
+    }else{
+      ret = smlParseJSONString(info, dataPoint, info->lines + cnt);
+    }
+    if (unlikely(ret != TSDB_CODE_SUCCESS)) {
+      uError("SML:0x%" PRIx64 " Invalid JSON Payload", info->id);
+      return ret;
+    }
+
+    if(unlikely(info->reRun)){
+      cnt = 0;
+      dataPoint = head;
+      info->lineNum = payloadNum;
+      ret = smlClearForRerun(info);
+      if(ret != TSDB_CODE_SUCCESS){
+        return ret;
+      }
+      continue;
+    }
+    cnt++;
+    dataPoint = dataPoint->next;
   }
 
   return TSDB_CODE_SUCCESS;
diff --git a/source/client/test/smlTest.cpp b/source/client/test/smlTest.cpp
index b7a50f1cc8..3914e2689e 100644
--- a/source/client/test/smlTest.cpp
+++ b/source/client/test/smlTest.cpp
@@ -622,3 +622,31 @@ TEST(testCase, smlParseTelnetLine_diff_json_type2_Test) {
   ASSERT_NE(ret, 0);
   smlDestroyInfo(info);
 }
+
+TEST(testCase, smlParseNumber_performance_Test) {
+  char       msg[256] = {0};
+  SSmlMsgBuf msgBuf;
+  SSmlKv kv;
+
+  char* str[3] = {"2893f64", "2323u32", "93u8"};
+  for (int i = 0; i < 3; ++i) {
+    int64_t t1 = taosGetTimestampUs();
+    for (int j = 0; j < 10000000; ++j) {
+      kv.value = str[i];
+      kv.length = strlen(str[i]);
+      smlParseNumber(&kv, &msgBuf);
+    }
+    printf("smlParseNumber:%s cost:%" PRId64, str[i], taosGetTimestampUs() - t1);
+    printf("\n");
+    int64_t t2 = taosGetTimestampUs();
+    for (int j = 0; j < 10000000; ++j) {
+      kv.value = str[i];
+      kv.length = strlen(str[i]);
+      smlParseNumberOld(&kv, &msgBuf);
+    }
+    printf("smlParseNumberOld:%s cost:%" PRId64, str[i], taosGetTimestampUs() - t2);
+    printf("\n\n");
+  }
+
+
+}
\ No newline at end of file