1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
|
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"><head><!--
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
This file is generated from xml source: DO NOT EDIT
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
-->
<title>ab - Apache HTTP server benchmarking tool - Apache HTTP Server</title>
<link href="../style/css/manual.css" rel="stylesheet" media="all" type="text/css" title="Main stylesheet" />
<link href="../style/css/manual-loose-100pc.css" rel="alternate stylesheet" media="all" type="text/css" title="No Sidebar - Default font size" />
<link href="../style/css/manual-print.css" rel="stylesheet" media="print" type="text/css" />
<link href="../images/favicon.ico" rel="shortcut icon" /></head>
<body id="manual-page"><div id="page-header">
<p class="menu"><a href="../mod/">Modules</a> | <a href="../mod/directives.html">Directives</a> | <a href="../faq/">FAQ</a> | <a href="../glossary.html">Glossary</a> | <a href="../sitemap.html">Sitemap</a></p>
<p class="apache">Apache HTTP Server Version 2.3</p>
<img alt="" src="../images/feather.gif" /></div>
<div class="up"><a href="./"><img title="<-" alt="<-" src="../images/left.gif" /></a></div>
<div id="path">
<a href="http://www.apache.org/">Apache</a> > <a href="http://httpd.apache.org/">HTTP Server</a> > <a href="http://httpd.apache.org/docs/">Documentation</a> > <a href="../">Version 2.3</a> > <a href="./">Programs</a></div><div id="page-content"><div id="preamble"><h1>ab - Apache HTTP server benchmarking tool</h1>
<div class="toplang">
<p><span>Available Languages: </span><a href="../en/programs/ab.html" title="English"> en </a> |
<a href="../ko/programs/ab.html" hreflang="ko" rel="alternate" title="Korean"> ko </a> |
<a href="../tr/programs/ab.html" hreflang="tr" rel="alternate" title="T�rk�e"> tr </a></p>
</div>
<p><code>ab</code> is a tool for benchmarking your Apache Hypertext
Transfer Protocol (HTTP) server. It is designed to give you an impression
of how your current Apache installation performs. This especially shows
you how many requests per second your Apache installation is capable of
serving.</p>
</div>
<div id="quickview"><ul id="toc"><li><img alt="" src="../images/down.gif" /> <a href="#synopsis">Synopsis</a></li>
<li><img alt="" src="../images/down.gif" /> <a href="#options">Options</a></li>
<li><img alt="" src="../images/down.gif" /> <a href="#bugs">Bugs</a></li>
</ul><h3>See also</h3><ul class="seealso"><li><code class="program"><a href="../programs/httpd.html">httpd</a></code></li></ul></div>
<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
<div class="section">
<h2><a name="synopsis" id="synopsis">Synopsis</a></h2>
<p><code><strong>ab</strong>
[ -<strong>A</strong> <var>auth-username</var>:<var>password</var> ]
[ -<strong>b</strong> <var>windowsize</var> ]
[ -<strong>c</strong> <var>concurrency</var> ]
[ -<strong>C</strong> <var>cookie-name</var>=<var>value</var> ]
[ -<strong>d</strong> ]
[ -<strong>e</strong> <var>csv-file</var> ]
[ -<strong>f</strong> <var>protocol</var> ]
[ -<strong>g</strong> <var>gnuplot-file</var> ]
[ -<strong>h</strong> ]
[ -<strong>H</strong> <var>custom-header</var> ]
[ -<strong>i</strong> ]
[ -<strong>k</strong> ]
[ -<strong>n</strong> <var>requests</var> ]
[ -<strong>p</strong> <var>POST-file</var> ]
[ -<strong>P</strong> <var>proxy-auth-username</var>:<var>password</var> ]
[ -<strong>q</strong> ]
[ -<strong>r</strong> ]
[ -<strong>s</strong> ]
[ -<strong>S</strong> ]
[ -<strong>t</strong> <var>timelimit</var> ]
[ -<strong>T</strong> <var>content-type</var> ]
[ -<strong>u</strong> <var>PUT-file</var> ]
[ -<strong>v</strong> <var>verbosity</var>]
[ -<strong>V</strong> ]
[ -<strong>w</strong> ]
[ -<strong>x</strong> <var><table>-attributes</var> ]
[ -<strong>X</strong> <var>proxy</var>[:<var>port</var>] ]
[ -<strong>y</strong> <var><tr>-attributes</var> ]
[ -<strong>z</strong> <var><td>-attributes</var> ]
[ -<strong>Z</strong> <var>ciphersuite</var> ]
[http[s]://]<var>hostname</var>[:<var>port</var>]/<var>path</var></code></p>
</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
<div class="section">
<h2><a name="options" id="options">Options</a></h2>
<dl>
<dt><code>-A <var>auth-username</var>:<var>password</var></code></dt>
<dd>Supply BASIC Authentication credentials to the server. The username and
password are separated by a single <code>:</code> and sent on the wire
base64 encoded. The string is sent regardless of whether the server needs
it (<em>i.e.</em>, has sent an 401 authentication needed).</dd>
<dt><code>-b <var>windowsize</var></code></dt>
<dd>Size of TCP send/receive buffer, in bytes.</dd>
<dt><code>-c <var>concurrency</var></code></dt>
<dd>Number of multiple requests to perform at a time. Default is one
request at a time.</dd>
<dt><code>-C <var>cookie-name</var>=<var>value</var></code></dt>
<dd>Add a <code>Cookie:</code> line to the request. The argument is
typically in the form of a <code><var>name</var>=<var>value</var></code>
pair. This field is repeatable.</dd>
<dt><code>-d</code></dt>
<dd>Do not display the "percentage served within XX [ms] table". (legacy
support).</dd>
<dt><code>-e <var>csv-file</var></code></dt>
<dd>Write a Comma separated value (CSV) file which contains for each
percentage (from 1% to 100%) the time (in milliseconds) it took to serve
that percentage of the requests. This is usually more useful than the
'gnuplot' file; as the results are already 'binned'.</dd>
<dt><code>-f <var>protocol</var></code></dt>
<dd>Specify SSL/TLS protocol (SSL2, SSL3, TLS1, or ALL).</dd>
<dt><code>-g <var>gnuplot-file</var></code></dt>
<dd>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 Excel. The labels are on the first line of
the file. </dd>
<dt><code>-h</code></dt>
<dd>Display usage information.</dd>
<dt><code>-H <var>custom-header</var></code></dt>
<dd>Append extra headers to the request. The argument is typically in
the form of a valid header line, containing a colon-separated field-value
pair (<em>i.e.</em>, <code>"Accept-Encoding: zip/zop;8bit"</code>).</dd>
<dt><code>-i</code></dt>
<dd>Do <code>HEAD</code> requests instead of <code>GET</code>.</dd>
<dt><code>-k</code></dt>
<dd>Enable the HTTP KeepAlive feature, <em>i.e.</em>, perform multiple
requests within one HTTP session. Default is no KeepAlive.</dd>
<dt><code>-n <var>requests</var></code></dt>
<dd>Number of requests to perform for the benchmarking session. The default
is to just perform a single request which usually leads to
non-representative benchmarking results.</dd>
<dt><code>-p <var>POST-file</var></code></dt>
<dd>File containing data to POST. Remember to also set <code>-T</code>.</dd>
<dt><code>-P <var>proxy-auth-username</var>:<var>password</var></code></dt>
<dd>Supply BASIC Authentication credentials to a proxy en-route. The
username and password are separated by a single <code>:</code> and sent on
the wire base64 encoded. The string is sent regardless of whether the
proxy needs it (<em>i.e.</em>, has sent an 407 proxy authentication
needed).</dd>
<dt><code>-q</code></dt>
<dd>When processing more than 150 requests, <code>ab</code> outputs a
progress count on <code>stderr</code> every 10% or 100 requests or so. The
<code>-q</code> flag will suppress these messages.</dd>
<dt><code>-r</code></dt>
<dd>Don't exit on socket receive errors.</dd>
<dt><code>-s</code></dt>
<dd>When compiled in (<code>ab -h</code> will show you) use the SSL
protected <code>https</code> rather than the <code>http</code> protocol.
This feature is experimental and <em>very</em> rudimentary. You probably
do not want to use it.</dd>
<dt><code>-S</code></dt>
<dd>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).</dd>
<dt><code>-t <var>timelimit</var></code></dt>
<dd>Maximum number of seconds to spend for benchmarking. This implies a
<code>-n 50000</code> internally. Use this to benchmark the server within a
fixed total amount of time. Per default there is no timelimit.</dd>
<dt><code>-T <var>content-type</var></code></dt>
<dd>Content-type header to use for POST/PUT data, eg.
<code>application/x-www-form-urlencoded</code>.
Default: <code>text/plain</code>.</dd>
<dt><code>-u <var>PUT-file</var></code></dt>
<dd>File containing data to PUT. Remember to also set <code>-T</code>.</dd>
<dt><code>-v <var>verbosity</var></code></dt>
<dd>Set verbosity level - <code>4</code> and above prints information on
headers, <code>3</code> and above prints response codes (404, 200, etc.),
<code>2</code> and above prints warnings and info.</dd>
<dt><code>-V</code></dt>
<dd>Display version number and exit.</dd>
<dt><code>-w</code></dt>
<dd>Print out results in HTML tables. Default table is two columns wide,
with a white background.</dd>
<dt><code>-x <var><table>-attributes</var></code></dt>
<dd>String to use as attributes for <code><table></code>. Attributes
are inserted <code><table <var>here</var> ></code>.</dd>
<dt><code>-X <var>proxy</var>[:<var>port</var>]</code></dt>
<dd>Use a proxy server for the requests.</dd>
<dt><code>-y <var><tr>-attributes</var></code></dt>
<dd>String to use as attributes for <code><tr></code>.</dd>
<dt><code>-z <var><td>-attributes</var></code></dt>
<dd>String to use as attributes for <code><td></code>.</dd>
<dt><code>-Z <var>ciphersuite</var></code></dt>
<dd>Specify SSL/TLS cipher suite (See openssl ciphers)</dd>
</dl>
</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
<div class="section">
<h2><a name="bugs" id="bugs">Bugs</a></h2>
<p>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.</p>
<p>It does not implement HTTP/1.x fully; only accepts some 'expected' forms
of responses. The rather heavy use of <code>strstr(3)</code> shows up top
in profile, which might indicate a performance problem; <em>i.e.</em>, you
would measure the <code>ab</code> performance rather than the server's.</p>
</div></div>
<div class="bottomlang">
<p><span>Available Languages: </span><a href="../en/programs/ab.html" title="English"> en </a> |
<a href="../ko/programs/ab.html" hreflang="ko" rel="alternate" title="Korean"> ko </a> |
<a href="../tr/programs/ab.html" hreflang="tr" rel="alternate" title="T�rk�e"> tr </a></p>
</div><div id="footer">
<p class="apache">Copyright 2009 The Apache Software Foundation.<br />Licensed under the <a href="http://www.apache.org/licenses/LICENSE-2.0">Apache License, Version 2.0</a>.</p>
<p class="menu"><a href="../mod/">Modules</a> | <a href="../mod/directives.html">Directives</a> | <a href="../faq/">FAQ</a> | <a href="../glossary.html">Glossary</a> | <a href="../sitemap.html">Sitemap</a></p></div>
</body></html>
|
