diff --git a/tests/test/c/insertPerRow.c b/tests/test/c/insertPerRow.c
index 3c9564bcd20c6b37a3e0c5dd95a56c44fe5d3e32..74ab238c3f06c2c2c0d3c501b47f0d835befa299 100644
--- a/tests/test/c/insertPerRow.c
+++ b/tests/test/c/insertPerRow.c
@@ -253,7 +253,7 @@ void generateRandomPoints() {
 
 void printHelp() {
   char indent[10] = "        ";
-  printf("Used to test the performance of TDengine, the insert method is table-by-table\n");
+  printf("Used to test the performance of TDengine\n After writing one row of data to all tables, write the next row\n");
 
   printf("%s%s\n", indent, "-d");
   printf("%s%s%s%s\n", indent, indent, "The name of the database to be created, default is ", dbName);
@@ -284,6 +284,8 @@ void shellParseArgument(int argc, char *argv[]) {
       exit(0);
     } else if (strcmp(argv[i], "-d") == 0) {
       strcpy(dbName, argv[++i]);
+    } else if (strcmp(argv[i], "-c") == 0) {
+      strcpy(configDir, argv[++i]);
     } else if (strcmp(argv[i], "-s") == 0) {
       strcpy(stableName, argv[++i]);
     } else if (strcmp(argv[i], "-r") == 0) {
diff --git a/tests/test/c/insertPerTable.c b/tests/test/c/insertPerTable.c
index ee4e0fecbd29bc88cef12d0dfa467a03611576c9..ca634074636304c38a7c76d044f3829c51ac2d09 100644
--- a/tests/test/c/insertPerTable.c
+++ b/tests/test/c/insertPerTable.c
@@ -258,7 +258,7 @@ void generateRandomPoints() {
 
 void printHelp() {
   char indent[10] = "        ";
-  printf("Used to test the performance of TDengine, the insert method is table-by-table\n");
+  printf("Used to test the performance of TDengine\n After writing all the data in one table, start the next table\n");
 
   printf("%s%s\n", indent, "-d");
   printf("%s%s%s%s\n", indent, indent, "The name of the database to be created, default is ", dbName);
@@ -289,6 +289,8 @@ void shellParseArgument(int argc, char *argv[]) {
       exit(0);
     } else if (strcmp(argv[i], "-d") == 0) {
       strcpy(dbName, argv[++i]);
+    } else if (strcmp(argv[i], "-c") == 0) {
+      strcpy(configDir, argv[++i]);
     } else if (strcmp(argv[i], "-s") == 0) {
       strcpy(stableName, argv[++i]);
     } else if (strcmp(argv[i], "-r") == 0) {