Provided by: manpages-zh_1.5.1-1_all bug

NAME

       ab - Apache HTTP 服务器性能测试工具

 SYNOPSIS
       ab  [  -A  auth-username:password  ]  [  -c  concurrency ] [ -C cookie-
       name=value ] [ -d ] [ -e csv-file ] [ -g gnuplot-file ] [  -h  ]  [  -H
       custom-header  ]  [  -i  ] [ -k ] [ -n requests ] [ -p POST-file ] [ -P
       proxy-auth-username:password ] [ -q ] [ -s ] [ -S ] [ -t timelimit ]  [
       -T content-type ] [ -v verbosity] [ -V ] [ -w ] [ -x <table>-attributes
       ] [ -X proxy[:port] ] [ -y <tr>-attributes ]  [  -z  <td>-attributes  ]
       [http://]hostname[:port]/path

 SUMMARY
       ab        是一个测试你Apache       http服务器的工具,你可以通过这个工具
       指定一个单位时间内向apache发出的请求数量来看看你的Apache和机
       器配合的性能如何

 OPTIONS
       -A auth-username:password
               支持基本的验证证书,用户名和密码之间使用"冒号"                 :
              分隔开,ab将以明文方式传送过去.不管服务器是不是需要
              ,也就是说你的服务器需要支持401认证.

       -c concurrency
               同时向服务器端发送的请求数目,默认状态下是一次
              只执行一个http请求.

       -C cookie-name=value
              Add a Cookie: line to the request. The argument is typically  in
              the form of a name=value pair. This field is repeatable.

       -d     Do  not  display  the  "percentage served within XX [ms] table".
              (legacy support).

       -e csv-file
              Write a Comma separated value (CSV) file which contains for each
              percentage (from 1% to 100%) the time (in milli seconds) it took
              to serve that percentage of the requests. This is  usually  more
              useful  than  the  'gnuplot'  file;  as  the results are already
              'binned'.

       -g gnuplot-file
              Write all measured  values  out  as  a  'gnuplot'  or  TSV  (Tab
              separate  values)  file.  This  file can easily be imported into
              packages like Gnuplot, IDL, Mathematica, Igor  or  even  Excell.
              The labels are on the first line of the file.

       -h     显示使用说明

       -H custom-header
              向请求包追加附加的标题字串.此参数应该是有效的标题      行(header
              line)形式,通常使用冒号":"来分隔有效配对     (valid     pair)例如
              'Accept-Encoding: zip/zop;8 bit';

       -i     使用一个 http 头(HEAD) 来替换 GET方法.不可以掺入POST 方法

       -k     允许http     KeepAlive     ;也就是说执行多个请求在一个     http
              会话当中,默认是不允许的也就是no KeepAlive啦;)

       -n requests
              执行一次测试会话的时候所发出的请求数目,默认是执行一个单一的请求
              当然了这样的测试结果也就没什么意义了

       -p POST-file
              测试程序也就是ab,将向Apache server发送带有HTTP POST 的请求.

       -P proxy-auth-username:password
              当需要通过代理测试一台HTTP                服务器的时候而你的代理
              又需要用户名密码验证,这时你可以使用这个选项,同样
              用户名与密码之间使用冒号":"分隔开,ab将之以明文的方式
              发送出去,当然,前提是你的代理是处于407认证状态的

       -q     When processing more than 150 requests, ab  outputs  a  progress
              count  on  stderr  every  10% or 100 requests or so. The -q flag
              will suppress these messages.

       -s     When compiled in (ab -h will show you)  use  the  SSL  protected
              https   rather   than   the   http  protocol.  This  feature  is
              experimental and very rudimentary. You probably do not  want  to
              use it.

       -S     Do  not  display  the  median and standard deviation values, nor
              display the warning/error messages when the average  and  median
              are more than one or two times the standard deviation apart. And
              default to the min/avg/max values. (legacy support).

       -t timelimit
               设置测试的时间的长短,使用这个选项ab将自动设置
              测试请求会话数目为50000,然后以你设置的时间为
              固定周期.默认状态下是没有时限的,也就是直到完成
              你所设置的请求数目为止.

       -T content-type
              内容类型标头,使用在POST数据的时候.

       -v verbosity
              设置冗余级别,4级打印出每个请求标头的详细信息,
              3级打印出回应代码(例如,404,200),2级打印出警告 信息和指示消息

       -V     显示版本号并且退出

       -w     打印输出结果到HTML表中. 默认的表是两列n行白底黑框

       -x <table>-attributes
              使用字串来描述表的属性,该属性字串应该插入到<table  >

       -X proxy[:port]
              Use a proxy server for the requests.

       -y <tr>-attributes
              用于生成html表格每行的属性名 (<tr>)

       -z <td>-attributes
              用于生成html表格每列的属性名 (<td>)

BUGS

       There are various statically declared buffers of fixed length. Combined
       with  the  lazy  parsing  of  the  command line arguments, the response
       headers from the server and other external inputs, this might bite you.

       It  does  not  implement  HTTP/1.x  fully; only accepts some 'expected'
       forms of responses. The rather heavy use of strstr(3) shows up  top  in
       profile,  which  might  indicate a performance problem; i.e., you would
       measure the ab performance rather than the server's.

 SEE ALSO
       httpd(8)

[trcbilg <email>

[2003.11.22

linuxan:
       http://cmpp.linuxforum.net