jmeter和ab的对比

压测比较常用的工具:ab,webbench,jmeter

ab和webbench作为shell模式下轻量级的测试工具,ab比webbench功能更多一些

jmeter作为有GUI界面的更高级测试工具

ab和jmeter同是apache下的两款压测工具

ab是Apache组织开发的一款web压力测试工具,优点是使用方便,统计功能强大

命令格式

ab [options] [http://]hostname[:port]/path

比较常用的有 -n, -t , -c

-c(concurrency)表示用多少并发来进行测试

-t表示测试持续多长时间

-n表示要发送多少次测试请求

 eg:

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D:\wamp64\bin\apache\apache2.4.39\bin>ab -n 100 -c 100 http://127.0.0.1:8080/test
This is ApacheBench, Version 2.3 <$Revision: 1843412 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/

Benchmarking 127.0.0.1 (be patient).....done


Server Software:
Server Hostname:        127.0.0.1
Server Port:            8080

Document Path:          /test
Document Length:        2 bytes

Concurrency Level:      100
Time taken for tests:   0.185 seconds
Complete requests:      100
Failed requests:        0
Total transferred:      13400 bytes
HTML transferred:       200 bytes
Requests per second:    541.03 [#/sec] (mean)
Time per request:       184.833 [ms] (mean)
Time per request:       1.848 [ms] (mean, across all concurrent requests)
Transfer rate:          70.80 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0    0   0.5      0       1
Processing:    26  126  41.7    146     174
Waiting:        2   80  38.5     72     146
Total:         26  126  41.6    147     175

Percentage of the requests served within a certain time (ms)
  50%    147
  66%    154
  75%    159
  80%    161
  90%    165
  95%    168
  98%    171
  99%    175
 100%    175 (longest request)

jmeter是一个非常强大和用户友好的GUI工具,http访问的参数设置基本应有尽有

结果

 对比:

  jmeter是一次完整的请求和返回;AB只是发出去请求,并不对返回做处理

  jmeter可以提供更加详细的统计结果数据;ab的结果为用数学方式统计平均值

    jmeter支持可变参数和CSV数据集的输入,能设定更加负责的测试样例;AB不需要写配置文件

  jmeter不支持精确时间的压测;AB支持

  jmeter为GUI的较重,并且统计了很多结果数据,比AB耗时耗费资源多;AB属于轻量级

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转载自www.cnblogs.com/baby123/p/12047273.html
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