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125 lines
6.0 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
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<head><title>Manual Page: ab - Apache HTTP Server</title></head>
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<body bgcolor="#ffffff" text="#000000" link="#0000ff"
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<!--#include virtual="header.html" -->
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<h1 align="center">Manual Page: ab</h1>
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<!-- This document was autogenerated from the man page -->
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<pre>
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<strong>NAME</strong>
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ab - Apache HTTP server benchmarking tool
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<strong>SYNOPSIS</strong>
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<strong>ab </strong>[ -<strong>k </strong>] [ -<strong>n </strong><em>requests </em>] [ -<strong>t </strong><em>timelimit </em>] [ -<strong>c </strong><em>concurrency</em>
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] [ -<strong>p </strong><em>POST file </em>] [ -<strong>A </strong><em>Authentication username</em>:<em>password </em>] [
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-<strong>P </strong><em>Proxy Authentication username</em>:<em>password </em>] [ -<strong>H </strong><em>Custom</em>
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<em>header </em>] [ -<strong>C </strong><em>Cookie name</em>=<em>value </em>] [ -<strong>T </strong><em>content</em>-<em>type </em>] [ -<strong>v</strong>
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<em>verbosity </em>] ] [ -<strong>w </strong><em>output HTML </em>] ] [ -<strong>x </strong><<em>table</em>> <em>attributes </em>]
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] [ -<strong>y </strong><<em>tr</em>> <em>attributes </em>] ] [ -<strong>z </strong><<em>td</em>> <em>attributes </em>]
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[<em>http</em>://]<em>hostname</em>[:<em>port</em>]/<em>path</em>
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<strong>ab </strong>[ -<strong>V </strong>] [ -<strong>h </strong>]
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<strong>DESCRIPTION</strong>
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<strong>ab </strong>is a tool for benchmarking your Apache HyperText Transfer
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Protocol (HTTP) server. It is designed to give you an
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impression of how your current Apache installation performs.
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This especially shows you how many requests per second your
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Apache installation is capable of serving.
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<strong>OPTIONS</strong>
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-<strong>k </strong>Enable the HTTP KeepAlive feature, i.e., perform
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multiple requests within one HTTP session.
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Default is no KeepAlive.
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-<strong>n </strong><em>requests </em>Number of requests to perform for the benchmark-
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ing session. The default is to just perform a
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single request which usually leads to non-
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representative benchmarking results.
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-<strong>t </strong><em>timelimit</em>
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Maximum number of seconds to spend for bench-
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marking. This implies a -<strong>n 50000 </strong>internally. Use
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this to benchmark the server within a fixed
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total amount of time. Per default there is no
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timelimit.
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-<strong>c </strong><em>concurrency</em>
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Number of multiple requests to perform at a
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time. Default is one request at a time.
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-<strong>p </strong><em>POST file</em>
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File containing data to POST.
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-<strong>A </strong><em>Authentication username</em>:<em>password</em>
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Supply BASIC Authentication credentials to the
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server. The username and password are separated
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by a single ':' and sent on the wire uuencoded.
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The string is sent regardless of whether the
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server needs it; (i.e., has sent an 401 authen-
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tication needed).
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-<strong>p </strong><em>Proxy</em>-<em>Authentication username</em>:<em>password</em>
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Supply BASIC Authentication credentials to a
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proxy en-route. The username and password are
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separated by a single ':' and sent on the wire
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uuencoded. The string is sent regardless of
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whether the proxy needs it; (i.e., has sent an
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407 proxy authentication needed).
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-<strong>C </strong><em>Cookie name</em>=<em>value</em>
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Add a 'Cookie:' line to the request. The argu-
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ment is typically in the form of a 'name=value'
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pair. This field is repeatable.
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-<strong>p </strong><em>Header string</em>
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Append extra headers to the request. The argu-
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ment is typically in the form of a valid header
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line, containing a colon-separated field-value
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pair. (i.e., 'Accept-Encoding: zip/zop;8bit').
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-<strong>T </strong><em>content</em>-<em>type</em>
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Content-type header to use for POST data.
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-<strong>v </strong>Set verbosity level - 4 and above prints infor-
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mation on headers, 3 and above prints response
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codes (404, 200, etc.), 2 and above prints warn-
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ings and info.
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-<strong>w </strong>Print out results in HTML tables. Default table
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is two columns wide, with a white background.
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-<strong>x </strong><em>attributes</em>
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String to use as attributes for <table>. Attri-
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butes are inserted <table <strong>here </strong>>
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-<strong>y </strong><em>attributes</em>
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String to use as attributes for <tr>.
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-<strong>z </strong><em>attributes</em>
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String to use as attributes for <td>.
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-<strong>V </strong>Display version number and exit.
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-<strong>h </strong>Display usage information.
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<strong>BUGS</strong>
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There are various statically declared buffers of fixed
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length. Combined with the lazy parsing of the command line
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arguments, the response headers from the server and other
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external inputs, this might bite you.
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It does not implement HTTP/1.x fully; only accepts some
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'expected' forms of responses. The rather heavy use of
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<strong>strstr(3) </strong>shows up top in profile, which might indicate a
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performance problem; i.e., you would measure the <strong>ab </strong>perfor-
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mance rather than the server's.
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<strong>SEE ALSO</strong>
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<strong>httpd(8)</strong>
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</pre>
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</body></html>
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