【性能测试】使用ab做Http性能测试

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Http性能测试工具

ab(ApacheBench)

• 安装：

yum install httpd

• 使用

ab -n 20 -c 1 192.168.35.1:8988/fortest

参数说明：

-n: 总请求次数；
-c: 并发请求数（默认为1）

• 结果示例：

[root@localhost ~]# ab -n 20 -c 1 192.168.35.1:8988/fortest
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 192.168.35.1 (be patient).....done

Server Software:
Server Hostname:        192.168.35.1
Server Port:            8988

Document Path:          /fortest
Document Length:        2 bytes

Concurrency Level:      1
Time taken for tests:   2.099 seconds  //总共耗费时间
Complete requests:      20
Failed requests:        0
Write errors:           0
Total transferred:      2420 bytes
HTML transferred:       40 bytes
Requests per second:    9.53 [#/sec] (mean)   //每秒处理请求数量
Time per request:       104.968 [ms] (mean)   //每次并发消耗平均时间
Time per request:       104.968 [ms] (mean, across all concurrent requests) //每次请求消耗平时时间
Transfer rate:          1.13 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0    1   1.9      0       9
Processing:   101  104   3.3    103     114
Waiting:      101  103   3.4    102     114
Total:        102  105   3.8    103     114

Percentage of the requests served within a certain time (ms)
  50%    103
  66%    104
  75%    107
  80%    108
  90%    112
  95%    114
  98%    114
  99%    114
 100%    114 (longest request)