dynode vs node-aws-sdk-dynamodb

bench_dynode.js

var access_key = '';
var secret_key = '';
var region = 'ap-northeast-1';

var dynode = require('dynode');
dynode.auth({
    accessKeyId: access_key
   ,secretAccessKey: secret_key
   ,region: region
});

var table = 'hoge';
var table_key_value = 'xxxxxxx';


var start = new Date().getTime();
// benchmark
var count=0
var max=3000
for (var i=0;i<max;i++) {
  dynode.getItem(table, table_key_value, function (err, res) {
    count++
    if(max<=count) {
      var end = new Date().getTime();
      console.log('count-dynode is ' + count);
      console.log('total time:' + ((end - start) / 1000)) + " sec";
    }
    if(err) return console.log(err);
  });
}

////////////////////////////////////////////////////////////////////
// toritori0318-MBA-2:dynamodb:% node bench_dynode.js
// count-dynode is 3000
// total time:4.147

bench_node_aws_sdk.js

var access_key = '';
var secret_key = '';
var region = 'ap-northeast-1';

var AWS = require('aws-sdk');
AWS.config.update({
    accessKeyId: access_key
   ,secretAccessKey: secret_key
   ,region: region
});
var aws_dy = new AWS.DynamoDB();


var table = 'hoge';
var table_key_value = 'xxxxxx';


var start = new Date().getTime();
// benchmark
var count=0
var max=3000
for (var i=0;i<max;i++) {
  aws_dy.getItem({TableName: table, Key: {id: {S: table_key_value}}}, function (err, res) {
    count++
    if(max<=count) {
      var end = new Date().getTime();
      console.log('count-sdk is ' + count);
      console.log('total time:' + ((end - start) / 1000)) + " sec";
    }
    if(err) return console.log(err);
  });
}


////////////////////////////////////////////////////////////////////
// toritori0318-MBA-2:dynamodb:% node bench_node_aws_sdk.js
// count-sdk is 3000
// total time:5.206