# 新建并编辑文件
[root@localhost http]# vi http.js

var http = require('http')
http
    .createServer(function(req,res){
        res.writeHead(200,{'Context-Type':'text/plain'})
        res.write('Hello NodeJS')
        res.end()
    })
    .listen(3000)

# 运行
[root@localhost http]# node http.js



# 启动服务后，新开一个窗口执行，如果没有此命令，执行yum install httpd-tools
[root@localhost ~]# ab -n1000 -c10 http://172.16.0.162:3000/
# 结果如下
This is ApacheBench, Version 2.3 <$Revision: 1430300 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/

Benchmarking 172.16.0.162 (be patient)
Completed 100 requests
Completed 200 requests
Completed 300 requests
Completed 400 requests
Completed 500 requests
Completed 600 requests
Completed 700 requests
Completed 800 requests
Completed 900 requests
Completed 1000 requests
Finished 1000 requests


Server Software:        
Server Hostname:        172.16.0.162
Server Port:            3000

Document Path:          /
Document Length:        12 bytes

Concurrency Level:      10
Time taken for tests:   0.515 seconds
Complete requests:      1000
Failed requests:        0
Write errors:           0
Total transferred:      113000 bytes
HTML transferred:       12000 bytes
Requests per second:    1941.56 [#/sec] (mean)
Time per request:       5.151 [ms] (mean)
Time per request:       0.515 [ms] (mean, across all concurrent requests)
Transfer rate:          214.25 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0    0   0.3      0       4
Processing:     1    5   4.5      3      34
Waiting:        1    5   4.4      3      34
Total:          2    5   4.5      4      34

Percentage of the requests served within a certain time (ms)
  50%      4
  66%      5
  75%      6
  80%      6
  90%      8
  95%     11
  98%     23
  99%     31
 100%     34 (longest request)