diff --git a/tests/examples/lua/README.md b/tests/examples/lua/README.md
index dd9c9d07874e455329e43c7f77e806eb3634622c..32d6a4cace9bd0bf66238ff32af1d3ecf0285046 100644
--- a/tests/examples/lua/README.md
+++ b/tests/examples/lua/README.md
@@ -19,6 +19,10 @@ Run lua sample:
 lua test.lua
 ```
 
+## Run performance test:
+```
+time lua benchmark.lua
+```
 ## OpenResty Dependencies
 - OpenResty: 
 ```
diff --git a/tests/examples/lua/benchmark.lua b/tests/examples/lua/benchmark.lua
new file mode 100644
index 0000000000000000000000000000000000000000..900e7891d81d5de2d723a9ebd9accf3317b2413a
--- /dev/null
+++ b/tests/examples/lua/benchmark.lua
@@ -0,0 +1,67 @@
+local driver = require "luaconnector"
+
+local config = {
+   password = "taosdata",
+   host = "127.0.0.1",
+   port = 6030,
+   database = "",
+   user = "root",
+
+   max_packet_size = 1024 * 1024 
+}
+
+local conn
+local res = driver.connect(config)
+if res.code ~=0 then
+   print("connect--- failed: "..res.error)
+   return
+else
+   conn = res.conn
+   print("connect--- pass.")
+end
+
+local res = driver.query(conn,"drop database if exists demo")
+
+res = driver.query(conn,"create database demo")
+if res.code ~=0 then
+   print("create db--- failed: "..res.error)
+   return
+else
+   print("create db--- pass.")
+end
+
+res = driver.query(conn,"use demo")
+if res.code ~=0 then
+   print("select db--- failed: "..res.error)
+   return
+else
+   print("select db--- pass.")
+end
+
+res = driver.query(conn,"create table m1 (ts timestamp, speed int,owner binary(20))")
+if res.code ~=0 then
+   print("create table---failed: "..res.error)
+   return
+else
+   print("create table--- pass.")
+end
+
+local base = 1617330000000
+local index =0
+local count = 100000
+local t
+while( index < count )
+do
+   t = base + index
+  local q=string.format([[insert into m1 values (%d,0,'robotspace')]],t)
+res = driver.query(conn,q)
+if res.code ~=0 then
+   print("insert records failed: "..res.error)
+   return
+else
+
+end
+   index = index+1
+end
+print(string.format([["Done. %d records has been stored."]],count))
+driver.close(conn)
diff --git a/tests/examples/lua/build.sh b/tests/examples/lua/build.sh
index 8018a3b0d87bf622f6f4c815cba7ba3873a736b5..cbd47bdfd24ce210ab77a6a6259f030863dc7c5b 100755
--- a/tests/examples/lua/build.sh
+++ b/tests/examples/lua/build.sh
@@ -1,2 +1,2 @@
-gcc lua_connector.c -fPIC -shared -o luaconnector.so -Wall -ltaos
+gcc -std=c99 lua_connector.c -fPIC -shared -o luaconnector.so -Wall -ltaos
 
diff --git a/tests/examples/lua/lua51/build.sh b/tests/examples/lua/lua51/build.sh
index da2981bf7d748a7a42782ad34c0db5b7c666c437..3b52ed14489a636fe7a867ed086199647fa650df 100755
--- a/tests/examples/lua/lua51/build.sh
+++ b/tests/examples/lua/lua51/build.sh
@@ -1,2 +1,2 @@
-gcc lua_connector51.c -fPIC -shared -o luaconnector51.so -Wall -ltaos
+gcc -std=c99 lua_connector51.c -fPIC -shared -o luaconnector51.so -Wall -ltaos
 
diff --git a/tests/examples/lua/lua_connector.c b/tests/examples/lua/lua_connector.c
index 920d2cdc35c51c833a4d89448ec7e643f555dbc2..8078ed2665bb30bb8b1d142a21182509dbc49f65 100644
--- a/tests/examples/lua/lua_connector.c
+++ b/tests/examples/lua/lua_connector.c
@@ -23,7 +23,7 @@ static int l_connect(lua_State *L){
 
   luaL_checktype(L, 1, LUA_TTABLE);
 
-  lua_getfield(L,-1,"host");
+  lua_getfield(L,1,"host");
   if (lua_isstring(L,-1)){
     host = lua_tostring(L, -1);
     // printf("host = %s\n", host);