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  • 压测工具ab

    1、安装ab
    yum install httpd-tools


    2、使用
    ab -n 2000 -c 2 http://www.cctv.com
    -n:总的请求数
    -c:并发数
    -k:是否开启长连接

    3、结果举例:
    Concurrency Level: 20 ====>并发数
    Time taken for tests: 37.252 seconds =====>总共的时间
    Complete requests: 2000 ====>总请求数
    Failed requests: 0
    Write errors: 0
    Total transferred: 637985160 bytes
    HTML transferred: 637254000 bytes
    Requests per second: 53.69 [#/sec] (mean) ====>服务端平均处理速率(即:总的请求数/总共的时间)
    Time per request: 372.516 [ms] (mean) ===>在客户端处理单个请求所需要花费的时间
    Time per request: 18.626 [ms] (mean, across all concurrent requests) ===>在服务端处理单个请求所需要花费的时间(不包含网络传输时间)
    Transfer rate: 16724.98 [Kbytes/sec] received ====>网络传输带宽占用情况

    Connection Times (ms)
    min mean[+/-sd] median max
    Connect: 5 42 212.1 26 3037
    Processing: 23 329 89.5 321 799
    Waiting: 4 32 28.5 28 348
    Total: 29 371 231.2 348 3432

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  • 原文地址:https://www.cnblogs.com/baihualin/p/10897070.html
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