背景

ab小型压力工具，对于在Linux中简单调试还是比较方便，轻巧灵活.

安装

 

  1.  
    yum -y install httpd-tools
     
 

查看版本
 

 

  1.  
    [root@7dgroup2 ~]# ab -V
     
  2.  
    This is ApacheBench, Version 2.3 <$Revision: 1430300 $>
     
  3.  
    Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
     
  4.  
    Licensed to The Apache Software Foundation, http://www.apache.org/
     
  5.  
     
  6.  
    帮助
     
  7.  
    [root@7dgroup2 ~]# ab help
     
  8.  
    ab: invalid URL
     
  9.  
    Usage: ab [options] [http[s]://]hostname[:port]/path
     
  10.  
    Options are:
     
  11.  
    -n requests Number of requests to perform
     
  12.  
    -c concurrency Number of multiple requests to make at a time
     
  13.  
    -t timelimit Seconds to max. to spend on benchmarking
     
  14.  
    This implies -n 50000
     
  15.  
    -s timeout Seconds to max. wait for each response
     
  16.  
    Default is 30 seconds
     
  17.  
    -b windowsize Size of TCP send/receive buffer, in bytes
     
  18.  
    -B address Address to bind to when making outgoing connections
     
  19.  
    -p postfile File containing data to POST. Remember also to set -T
     
  20.  
    -u putfile File containing data to PUT. Remember also to set -T
     
  21.  
    -T content-type Content-type header to use for POST/PUT data, eg.
     
  22.  
    'application/x-www-form-urlencoded'
     
  23.  
    Default is 'text/plain'
     
  24.  
    -v verbosity How much troubleshooting info to print
     
  25.  
    -w Print out results in HTML tables
     
  26.  
    -i Use HEAD instead of GET
     
  27.  
    -x attributes String to insert as table attributes
     
  28.  
    -y attributes String to insert as tr attributes
     
  29.  
    -z attributes String to insert as td or th attributes
     
  30.  
    -C attribute Add cookie, eg. 'Apache=1234'. (repeatable)
     
  31.  
    -H attribute Add Arbitrary header line, eg. 'Accept-Encoding: gzip'
     
  32.  
    Inserted after all normal header lines. (repeatable)
     
  33.  
    -A attribute Add Basic WWW Authentication, the attributes
     
  34.  
    are a colon separated username and password.
     
  35.  
    -P attribute Add Basic Proxy Authentication, the attributes
     
  36.  
    are a colon separated username and password.
     
  37.  
    -X proxy:port Proxyserver and port number to use
     
  38.  
    -V Print version number and exit
     
  39.  
    -k Use HTTP KeepAlive feature
     
  40.  
    -d Do not show percentiles served table.
     
  41.  
    -S Do not show confidence estimators and warnings.
     
  42.  
    -q Do not show progress when doing more than 150 requests
     
  43.  
    -g filename Output collected data to gnuplot format file.
     
  44.  
    -e filename Output CSV file with percentages served
     
  45.  
    -r Don't exit on socket receive errors.
     
  46.  
    -h Display usage information (this message)
     
  47.  
    -Z ciphersuite Specify SSL/TLS cipher suite (See openssl ciphers)
     
  48.  
    -f protocol Specify SSL/TLS protocol
     
  49.  
    (SSL3, TLS1, TLS1.1, TLS1.2 or ALL)
     
  50.  
    [root@7dgroup2 ~]#
     
 

  •  
    -n在测试会话中所执行的请求个数。默认时，仅执行一个请求。
     
  •  
    -c一次产生的请求个数。默认是一次一个。
     
  •  
    -t测试所进行的最大秒数。其内部隐含值是-n 50000，它可以使对服务器的测试限制在一个固定的总时间以内。默认时，没有时间限制。
     
 

快速上手
 

 

  1.  
    [root@7dgroup2 ~]# ab -n10 -c 10 http://172.17.211.142:8089/
     
  2.  
    This is ApacheBench, Version 2.3 <$Revision: 1430300 $>
     
  3.  
    Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
     
  4.  
    Licensed to The Apache Software Foundation, http://www.apache.org/
     
  5.  
     
  6.  
    Benchmarking 172.17.211.142 (be patient).....done
     
  7.  
     
  8.  
     
  9.  
    Server Software: #服务器软件
     
  10.  
    Server Hostname: 172.17.211.142 #域名
     
  11.  
    Server Port: 8089 #请求端口号
     
  12.  
     
  13.  
    Document Path: / #文件路径
     
  14.  
    Document Length: 76443 bytes #页面字节数
     
  15.  
     
  16.  
    Concurrency Level: 10 #请求的并发数
     
  17.  
    Time taken for tests: 0.064 seconds #总访问时间
     
  18.  
    Complete requests: 10 #请求成功数量
     
  19.  
    Failed requests: 0 #请求失败数量
     
  20.  
    Write errors: 0
     
  21.  
    Total transferred: 766030 bytes #请求总数据大小（包括header头信息）
     
  22.  
    HTML transferred: 764430 bytes #html页面实际总字节数
     
  23.  
    Requests per second: 157.09 [#/sec] (mean) #每秒多少请求,服务器的吞吐量
     
  24.  
    Time per request: 63.656 [ms] (mean) #用户平均请求等待时间
     
  25.  
    Time per request: 6.366 [ms] (mean, across all concurrent requests) # 服务器平均处理时间，也就是服务器吞吐量的倒数
     
  26.  
    Transfer rate: 11751.86 [Kbytes/sec] received #每秒获取的数据长度
     
  27.  
     
  28.  
    Connection Times (ms)
     
  29.  
    min mean[+/-sd] median max
     
  30.  
    Connect: 0 0 0.0 0 0 #网络链接
     
  31.  
    Processing: 8 36 17.1 41 60 #系统处理
     
  32.  
    Waiting: 3 24 18.7 18 55 #等待
     
  33.  
    Total: 9 37 17.1 42 60
     
  34.  
    #Total并不等于前三行数据相加，因为前三行的数据并不是在同一个请求中采集到的，
     
  35.  
    #可能某个请求的网络延迟最短，但是系统处理时间又是最长的呢。
     
  36.  
    #所以Total是从整个请求所需要的时间的角度来统计的。
     
  37.  
    Percentage of the requests served within a certain time (ms)
     
  38.  
    50% 42
     
  39.  
    66% 45
     
  40.  
    75% 51
     
  41.  
    80% 52
     
  42.  
    90% 60
     
  43.  
    95% 60
     
  44.  
    98% 60
     
  45.  
    99% 60
     
  46.  
    100% 60 (longest request)
     
 

 
  

        # 测试工具
      
        # linux
      
  
 
 Logo 
Linux
 
 
 
  
更多推荐
  
 
网卡速率和双工模式的配置
 
http://linux.chinaitlab.com/system/792187.html1、mii-tool 配置网络设备协商方式的工具；    1.1 mii-tool 介绍；    mii-tool - view, manipulate media-independent interface status （mii-tool 是查看，管理介质的网络接口的状态）
 
avatar Linux
 
 
Linux虚拟文件系统之文件系统卸载（sys_umount())
 
Linux中卸载文件系统由umount系统调用实现，入口函数为sys_umount()。较于文件系统的安装较为简单，下面是具体的实现。1. /*sys_umont系统调用*/2. SYSCALL_DEFINE2(umount, char __user *, name, int, flags)3. {4.struct path path;
 
avatar Linux
 
 
Linux系统下超级终端Minicom的使用方法（例如：连接交换机，路由器等）转http://baike.baidu.com/view/2911642.htm?fr=ala0_1
 
<br />　　Linux系统下超级终端Minicom的使用方法 <br />　　Linux下的Minicom的功能与下的超级终端功能相似，适于在通过超级终端对设备的管理以及对嵌入操作系统的升级，现写出Minicom的使用手册： <br />　　1． 启动minicom <br />　　以root权限登录系统 <br />　　使用命令 <br />　　minicom –s 则minicom启动，屏
 
avatar Linux