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1 <?xml version="1.0" encoding="EUC-KR"?>
2 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
3 <html xmlns="http://www.w3.org/1999/xhtml" lang="ko" xml:lang="ko"><head><!--
4         XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
5               This file is generated from xml source: DO NOT EDIT
6         XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
7       -->
8 <title>¾ÆÆÄÄ¡ ¼º´ÉÇâ»ó - Apache HTTP Server</title>
9 <link href="../style/css/manual.css" rel="stylesheet" media="all" type="text/css" title="Main stylesheet" />
10 <link href="../style/css/manual-loose-100pc.css" rel="alternate stylesheet" media="all" type="text/css" title="No Sidebar - Default font size" />
11 <link href="../style/css/manual-print.css" rel="stylesheet" media="print" type="text/css" />
12 <link href="../images/favicon.ico" rel="shortcut icon" /></head>
13 <body id="manual-page"><div id="page-header">
14 <p class="menu"><a href="../mod/">¸ðµâ</a> | <a href="../mod/directives.html">Áö½Ã¾îµé</a> | <a href="../faq/">FAQ</a> | <a href="../glossary.html">¿ë¾î</a> | <a href="../sitemap.html">»çÀÌÆ®¸Ê</a></p>
15 <p class="apache">Apache HTTP Server Version 2.3</p>
16 <img alt="" src="../images/feather.gif" /></div>
17 <div class="up"><a href="./"><img title="&lt;-" alt="&lt;-" src="../images/left.gif" /></a></div>
18 <div id="path">
19 <a href="http://www.apache.org/">Apache</a> &gt; <a href="http://httpd.apache.org/">HTTP Server</a> &gt; <a href="http://httpd.apache.org/docs/">Documentation</a> &gt; <a href="../">Version 2.3</a> &gt; <a href="./">Miscellaneous Documentation</a></div><div id="page-content"><div id="preamble"><h1>¾ÆÆÄÄ¡ ¼º´ÉÇâ»ó</h1>
20 <div class="toplang">
21 <p><span>°¡´ÉÇÑ ¾ð¾î: </span><a href="../en/misc/perf-tuning.html" hreflang="en" rel="alternate" title="English">&nbsp;en&nbsp;</a> |
22 <a href="../ko/misc/perf-tuning.html" title="Korean">&nbsp;ko&nbsp;</a></p>
23 </div>
24 <div class="outofdate">ÀÌ ¹®¼­´Â ÃÖ½ÅÆÇ ¹ø¿ªÀÌ ¾Æ´Õ´Ï´Ù.
25             ÃÖ±Ù¿¡ º¯°æµÈ ³»¿ëÀº ¿µ¾î ¹®¼­¸¦ Âü°íÇϼ¼¿ä.</div>
26
27
28     <p>¾ÆÆÄÄ¡ 2.0Àº ±â´É°ú Æ÷Æð¡´É¼º°ú ¼º´ÉÀÇ ±ÕÇüÀÌ ¸Âµµ·Ï
29     ¼³°èÇÑ ¹ü¿ë À¥¼­¹öÀÌ´Ù. º¥Ä¡¸¶Å© ±â·ÏÀ» ¼¼¿ì±âÀ§ÇØ ¼³°èÇÏÁö
30     ¾Ê¾ÒÁö¸¸ ¾ÆÆÄÄ¡ 2.0Àº ½ÇÁ¦ ¸¹Àº °æ¿ì ³ôÀº ¼º´ÉÀ» ³½´Ù.</p>
31
32     <p>¾ÆÆÄÄ¡ 1.3°ú ºñ±³Çؼ­ 2.0 ¹öÀüÀº Ã³¸®·®°ú È®À强(scalability)À»
33     ³ôÀ̱âÀ§ÇØ ¸¹Àº ÃÖÀûÈ­¸¦ Çß´Ù. ±âº»°ªÀ¸·Î ´ëºÎºÐ ÃÖÀûÈ­ÇÑ
34     °ªÀ» »ç¿ëÇÑ´Ù. ±×·¯³ª ÄÄÆÄÀϽàȤÀº ½ÇÇà½Ã ¼³Á¤ÀÌ ¼º´É¿¡
35     Å« ¿µÇâÀ» ÁÙ ¼ö ÀÖ´Ù. ÀÌ ¹®¼­´Â ¾ÆÆÄÄ¡ 2.0ÀÇ ¼º´ÉÀ» Çâ»óÇϱâÀ§ÇØ
36     ¼­¹ö °ü¸®ÀÚ°¡ ¼³Á¤ÇÒ ¼ö Àִ ¿É¼ÇÀ» ¼³¸íÇÑ´Ù. ¾î¶² ¼³Á¤
37     ¿É¼ÇÀº À¥¼­¹ö°¡ Çϵå¿þ¾î¿Í ¿î¿µÃ¼Á¦ÀÇ ±â´ÉÀ» ´õ Àß È°¿ëÇϵµ·Ï
38     Çϴ ¹Ý¸é, ¾î¶² ¿É¼ÇÀº ¼Óµµ¸¦ À§ÇØ ±â´ÉÀ» Èñ»ýÇÑ´Ù.</p>
39
40   </div>
41 <div id="quickview"><ul id="toc"><li><img alt="" src="../images/down.gif" /> <a href="#hardware">Çϵå¿þ¾î¿Í ¿î¿µÃ¼Á¦¿¡ ´ëÇؼ­</a></li>
42 <li><img alt="" src="../images/down.gif" /> <a href="#runtime">½ÇÇà½Ã ¼³Á¤¿¡ ´ëÇؼ­</a></li>
43 <li><img alt="" src="../images/down.gif" /> <a href="#compiletime">ÄÄÆÄÀϽ༳Á¤¿¡ ´ëÇؼ­</a></li>
44 <li><img alt="" src="../images/down.gif" /> <a href="#trace">ºÎ·Ï: ½Ã½ºÅÛÈ£Ãâ ±â·ÏÀ» ÀÚ¼¼È÷ ºÐ¼®Çϱâ</a></li>
45 </ul></div>
46 <div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
47 <div class="section">
48 <h2><a name="hardware" id="hardware">Çϵå¿þ¾î¿Í ¿î¿µÃ¼Á¦¿¡ ´ëÇؼ­</a></h2>
49
50     
51
52     <p>À¥¼­¹ö ¼º´É¿¡ °¡Àå Å« ¿µÇâÀ» Áִ °ÍÀº ¸Þ¸ð¸®´Ù. ½º¿ÒÀº
53     ¿äû´ç Áö¿¬½Ã°£À» »ç¿ëÀÚ°¡ "ÃæºÐÈ÷ ºü¸£´Ù°í" »ý°¢ÇÏÁö ¸øÇÏ°Ô
54     ´Ã¸®±â¶§¹®¿¡ À¥¼­¹ö´Â ½º¿ÒÀ» Çϸ頾ȵȴÙ. ´À·ÁÁö¸é »ç¿ëÀÚ´Â
55     Á¤ÁöÇÏ°í ´Ù½Ã Á¢¼ÓÇÏ¿© ºÎÇÏ°¡ °è¼Ó Áõ°¡ÇÑ´Ù. <code class="directive"><a href="../mod/mpm_common.html#maxclients">MaxClients</a></code> Áö½Ã¾î¸¦ Á¶ÀýÇÏ¿©
56     À¥¼­¹ö°¡ ½º¿ÒÀ» ÇÒ Á¤µµ·Î ¸¹Àº ÀÚ½ÄÀ» ¸¸µéÁö¾Êµµ·Ï Çؾß
57     ÇÑ´Ù. ¹æ¹ýÀº °£´ÜÇÏ´Ù: <code>top</code>°ú °°Àº µµ±¸¿¡¼­
58     ÇÁ·Î¼¼½º ¸ñ·ÏÀ» º¸°í ¾ÆÆÄÄ¡ ÇÁ·Î¼¼½ºÀÇ Æò±Õ ¸Þ¸ð¸® »ç¿ë·®À»
59     ¾Ë¾Æ³½ÈÄ, Àüü »ç¿ë°¡´ÉÇÑ ¸Þ¸ð¸®¿¡¼­ ´Ù¸¥ ÇÁ·Î¼¼½ºµéÀÌ »ç¿ëÇÒ
60     °ø°£À» »« °ª¿¡¼­ ³ª´«´Ù.</p>
61
62     <p>³ª¸ÓÁö´Â Æò¹üÇÏ´Ù: ÃæºÐÈ÷ ºü¸¥ CPU, ÃæºÐÈ÷ ºü¸¥ ³×Æ®¿÷Ä«µå,
63     ÃæºÐÈ÷ ºü¸¥ µð½ºÅ©, ¿©±â¼­ "ÃæºÐÈ÷ ºü¸¥"Àº ½ÇÇèÀ» Çؼ­ °áÁ¤Çؾß
64     ÇÑ´Ù.</p>
65
66     <p>¿î¿µÃ¼Á¦´Â º¸Åë °¢ÀÚ ¾Ë¾Æ¼­ ¼±ÅÃÇÒ ÀÏÀÌ´Ù. ±×·¯³ª ÀϹÝÀûÀ¸·Î
67     À¯¿ëÇÏ´Ù°í ÆǸíµÈ ¸î°¡Áö ÁöħÀÌ ÀÖ´Ù:</p>
68
69     <ul>
70       <li>
71         <p>¼±ÅÃÇÑ ¿î¿µÃ¼Á¦ÀÇ ÃֽŠ¾ÈÁ¤ ¹öÀü°ú ÆÐÄ¡¸¦ ½ÇÇàÇÑ´Ù.
72         ¸¹Àº ¿î¿µÃ¼Á¦ Á¦ÀÛ»ç´Â ÃÖ±Ù TCP ½ºÅðú ¾²·¹µå ¶óÀ̺귯¸®¿¡
73         ¸¹Àº ¼ÓµµÇâ»óÀ» Çß´Ù.</p>
74       </li>
75
76       <li>
77         <p>¿î¿µÃ¼Á¦°¡ <code>sendfile(2)</code> ½Ã½ºÅÛÈ£ÃâÀ»
78         Áö¿øÇÑ´Ù¸é, À̸¦ »ç¿ëÇϱâÀ§ÇÑ ¹öÀüÀ̳ª ÆÐÄ¡¸¦ ¼³Ä¡ÇÏ¿´´ÂÁö
79         È®ÀÎÇÑ´Ù. (¿¹¸¦ µé¾î, ¸®´ª½º¶ó¸é 2.4 ÀÌ»ó ¹öÀüÀ» ¶æÇÑ´Ù.
80         Solaris 8 Ãʱ⠹öÀüÀº ÆÐÄ¡°¡ ÇÊ¿äÇÏ´Ù.) Áö¿øÇϴ ½Ã½ºÅÛÀ̶ó¸é
81         ¾ÆÆÄÄ¡ 2´Â <code>sendfile</code>À» »ç¿ëÇÏ¿© CPU¸¦ ´ú
82         »ç¿ëÇϸç Á¤Àû ÆÄÀÏÀ» ´õ »¡¸® Àü¼ÛÇÒ ¼ö ÀÕ´Ù.</p>
83       </li>
84     </ul>
85
86   </div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
87 <div class="section">
88 <h2><a name="runtime" id="runtime">½ÇÇà½Ã ¼³Á¤¿¡ ´ëÇؼ­</a></h2>
89
90     
91
92     <table class="related"><tr><th>°ü·ÃµÈ ¸ðµâ</th><th>°ü·ÃµÈ Áö½Ã¾î</th></tr><tr><td><ul><li><code class="module"><a href="../mod/mod_dir.html">mod_dir</a></code></li><li><code class="module"><a href="../mod/mpm_common.html">mpm_common</a></code></li><li><code class="module"><a href="../mod/mod_status.html">mod_status</a></code></li></ul></td><td><ul><li><code class="directive"><a href="../mod/core.html#allowoverride">AllowOverride</a></code></li><li><code class="directive"><a href="../mod/mod_dir.html#directoryindex">DirectoryIndex</a></code></li><li><code class="directive"><a href="../mod/core.html#hostnamelookups">HostnameLookups</a></code></li><li><code class="directive"><a href="../mod/core.html#enablemmap">EnableMMAP</a></code></li><li><code class="directive"><a href="../mod/core.html#enablesendfile">EnableSendfile</a></code></li><li><code class="directive"><a href="../mod/core.html#keepalivetimeout">KeepAliveTimeout</a></code></li><li><code class="directive"><a href="../mod/prefork.html#maxspareservers">MaxSpareServers</a></code></li><li><code class="directive"><a href="../mod/prefork.html#minspareservers">MinSpareServers</a></code></li><li><code class="directive"><a href="../mod/core.html#options">Options</a></code></li><li><code class="directive"><a href="../mod/mpm_common.html#startservers">StartServers</a></code></li></ul></td></tr></table>
93
94     <h3><a name="dns" id="dns">HostnameLookups¿Í DNS¿¡ ´ëÇØ °í·ÁÇÒ Á¡µé</a></h3>
95
96       
97
98       <p>¾ÆÆÄÄ¡ 1.3 ÀÌÀü¿¡ <code class="directive"><a href="../mod/core.html#hostnamelookups">HostnameLookups</a></code>ÀÇ ±âº»°ªÀº
99       <code>On</code>ÀÌ¿´´Ù. ¿äûÀ» ¸¶Ä¡±âÀü¿¡ DNS °Ë»öÀÌ ³¡³ª¾ß
100       ÇϹǷΠ¿äû¸¶´Ù Áö¿¬ÀÌ »ý°å´Ù. ¾ÆÆÄÄ¡ 1.3¿¡¼­ ÀÌ ¼³Á¤ÀÇ
101       ±âº»°ªÀÌ <code>Off</code>·Î º¯°æµÇ¾ú´Ù. ·Î±×ÆÄÀÏÀÇ ÁÖ¼Ò¸¦
102       È£½ºÆ®¸íÀ¸·Î º¯È¯ÇÏ·Á¸é ¿©·¯ ·Î±×󸮠ÇÁ·Î±×·¥Áß ÇϳªÀÎ,
103       ¾ÆÆÄÄ¡¿¡ Æ÷ÇԵȠ<a href="../programs/logresolve.html"><code>logresolve</code></a>
104       ÇÁ·Î±×·¥À» »ç¿ëÇ϶ó.</p>
105
106       <p>·Î±×󸮠ÀÛ¾÷ÀÌ ¼­¹ö ¼º´É¿¡ ¾Ç¿µÇâÀ» ¹ÌÄ¡¹Ç·Î ½ÇÁ¦
107       »ç¿ëÇϴ À¥¼­¹ö°¡ ¾Æ´Ñ ´Ù¸¥ ÄÄÇ»ÅÍ¿¡¼­ ·Î±×ÆÄÀÏÀ» ÈÄó¸®Çϱæ
108       ¹Ù¶õ´Ù.</p>
109
110       <p><code><code class="directive"><a href="../mod/mod_access.html#allow">Allow</a></code>
111       from domain</code>À̳ª <code><code class="directive"><a href="../mod/mod_access.html#deny">Deny</a></code> from domain</code>
112       Áö½Ã¾î¸¦ »ç¿ëÇÑ´Ù¸é (Áï, IP ÁÖ¼Ò°¡ ¾Æ´Ñ È£½ºÆ®¸íÀ̳ª µµ¸ÞÀθíÀ»
113       »ç¿ëÇÑ´Ù¸é) ºÎµæÀÌ Áߺ¹-¿ª DNS °Ë»öÀ» (¿ª°Ë»öÀ» ÇÑÈÄ ¾ÇÀÇ·Î
114       º¯°æµÇ¾ú´ÂÁö È®ÀÎÇϱâÀ§ÇØ ´Ù½Ã °Ë»ö) ÇؾߠÇÑ´Ù. ±×·¯¹Ç·Î
115       ¼º´ÉÀ» ³ôÀ̱âÀ§ÇØ ÀÌ·± Áö½Ã¾î¿¡´Â °¡´ÉÇϸé À̸§´ë½Å IP
116       ÁÖ¼Ò¸¦ »ç¿ëÇÑ´Ù.</p>
117
118       <p><code>&lt;Location /server-status&gt;</code> ¼½¼Ç µîÀ¸·Î
119       Áö½Ã¾îÀÇ Àû¿ë¹üÀ§¸¦ Á¦ÇÑÇÒ ¼ö ÀÖÀ½À» ±â¾ïÇ϶ó. ÀÌ °æ¿ì
120       Á¶°Ç¿¡ ¸Â´Â ¿äû¿¡¸¸ DNS Á¶È¸¸¦ ÇÑ´Ù. ´ÙÀ½Àº
121       <code>.html</code>°ú <code>.cgi</code> ÆÄÀϸ¸ DNS °Ë»öÀ»
122       Çϴ ¿¹Á¦´Ù:</p>
123
124       <div class="example"><p><code>
125         HostnameLookups off<br />
126         &lt;Files ~ "\.(html|cgi)$"&gt;<br />
127         <span class="indent">
128           HostnameLookups on<br />
129         </span>
130         &lt;/Files&gt;
131       </code></p></div>
132
133       <p>±×·¯³ª CGI¿¡¼­ DNS¸íÀÌ ÇÊ¿äÇÒ »ÓÀ̶ó¸é, ÇÊ¿äÇѠƯÁ¤
134       CGI¿¡¼­¸¸ <code>gethostbyname</code> È£ÃâÀ» Çϵµ·Ï °í·ÁÇغ¼
135       ¼ö ÀÖ´Ù.</p>
136
137     
138
139     <h3><a name="symlinks" id="symlinks">FollowSymLinks¿Í SymLinksIfOwnerMatch</a></h3>
140
141       
142
143       <p>URL °ø°£¿¡¼­ <code>Options FollowSymLinks</code>¸¦
144       »ç¿ëÇÏÁö¾Ê°í <code>Options SymLinksIfOwnerMatch</code>¸¦
145       »ç¿ëÇϸ頾ÆÆÄÄ¡´Â ½Éº¼¸µÅ©¸¦ °Ë»çÇϱâÀ§ÇØ ½Ã½ºÅÛÈ£ÃâÀ»
146       Çѹø ´õ ÇؾߠÇÑ´Ù. ÆÄÀϸíÀÇ °¢ ºÎºÐ¸¶´Ù Çѹø¾¿ ´õ È£ÃâÀ»
147       ÇÑ´Ù. ¿¹¸¦ µé¾î, ¼³Á¤ÀÌ ´ÙÀ½°ú °°°í:</p>
148
149       <div class="example"><p><code>
150         DocumentRoot /www/htdocs<br />
151         &lt;Directory /&gt;<br />
152         <span class="indent">
153           Options SymLinksIfOwnerMatch<br />
154         </span>
155         &lt;/Directory&gt;
156       </code></p></div>
157
158       <p><code>/index.html</code> URI¿¡ ´ëÇÑ ¿äûÀÌ ÀÖ´Ù°í °¡Á¤ÇÏÀÚ.
159       ±×·¯¸é ¾ÆÆÄÄ¡´Â <code>/www</code>, <code>/www/htdocs</code>,
160       <code>/www/htdocs/index.html</code> °¢°¢¿¡ ´ëÇØ
161       <code>lstat(2)</code>¸¦ È£ÃâÇÑ´Ù. <code>lstats</code>
162       °á°ú¸¦ Ä³½ÌÇÏÁö ¾Ê±â¶§¹®¿¡ ¿äûÀÌ µé¾î¿Ã ¶§¸¶´Ù ¸Å¹ø °°Àº
163       ÀÛ¾÷À» ÇÑ´Ù. ÁøÂ¥ ½Éº¼¸µÅ© º¸¾È °Ë»ç¸¦ ¿øÇѴٸ頴ÙÀ½°ú
164       °°ÀÌ ÇÒ ¼ö ÀÖ´Ù:</p>
165
166       <div class="example"><p><code>
167         DocumentRoot /www/htdocs<br />
168         &lt;Directory /&gt;<br />
169         <span class="indent">
170           Options FollowSymLinks<br />
171         </span>
172         &lt;/Directory&gt;<br />
173         <br />
174         &lt;Directory /www/htdocs&gt;<br />
175         <span class="indent">
176           Options -FollowSymLinks +SymLinksIfOwnerMatch<br />
177         </span>
178         &lt;/Directory&gt;
179       </code></p></div>
180
181       <p>ÀÌ °æ¿ì ÃÖ¼ÒÇÑ <code class="directive"><a href="../mod/core.html#documentroot">DocumentRoot</a></code> °æ·Î´Â °Ë»çÇÏÁö
182       ¾Ê´Â´Ù. DocumentRoot ¹Û¿¡ Àִ °æ·Î·Î <code class="directive"><a href="../mod/mod_alias.html#alias">Alias</a></code>³ª <code class="directive"><a href="../mod/mod_rewrite.html#rewriterule">RewriteRule</a></code>À» »ç¿ëÇÑ
183       °æ¿ì¿¡µµ À§¿Í ºñ½ÁÇÑ ¼½¼ÇÀÌ ÇÊ¿äÇÏ´Ù. ½Éº¼¸µÅ© º¸¾ÈÀ»
184       °í·ÁÇÏÁö ¾Ê°í ÃÖ°íÀÇ ¼º´ÉÀ» ¾òÀ¸·Á¸é,
185       <code>FollowSymLinks</code>¸¦ ¼³Á¤ÇÏ°í,
186       <code>SymLinksIfOwnerMatch</code>´Â Àý´ë·Î ¾ÈµÈ´Ù.</p>
187
188     
189
190     <h3><a name="htacess" id="htacess">AllowOverride</a></h3>
191
192       
193
194       <p>URL °ø°£¿¡¼­ overrides¸¦ Çã¿ëÇÑ´Ù¸é (º¸Åë
195       <code>.htaccess</code> ÆÄÀÏ) ¾ÆÆÄÄ¡´Â ÆÄÀϸíÀÇ °¢ ºÎºÐ¸¶´Ù
196       <code>.htaccess</code>¸¦ ¿­±æ ½ÃµµÇÑ´Ù. ¿¹¸¦ µé¾î,</p>
197
198       <div class="example"><p><code>
199         DocumentRoot /www/htdocs<br />
200         &lt;Directory /&gt;<br />
201         <span class="indent">
202           AllowOverride all<br />
203         </span>
204         &lt;/Directory&gt;
205       </code></p></div>
206
207       <p><code>/index.html</code> URI¿¡ ´ëÇÑ ¿äûÀÌ ÀÖ´Ù°í °¡Á¤ÇÏÀÚ.
208       ¾ÆÆÄÄ¡´Â <code>/.htaccess</code>, <code>/www/.htaccess</code>,
209       <code>/www/htdocs/.htaccess</code>¸¦ ¿­·Á°í ½ÃµµÇÑ´Ù.
210       ÇØ°áÃ¥Àº ¾ÕÀÇ <code>Options FollowSymLinks</code> °æ¿ì¿Í
211       ºñ½ÁÇÏ´Ù. ÃÖ°íÀÇ ¼º´ÉÀ» ¾òÀ¸·Á¸é ÆÄÀϽýºÅÛ¿¡ ´ëÇؼ­ Ç×»ó
212       <code>AllowOverride None</code>À» »ç¿ëÇÑ´Ù.</p>
213
214     
215
216     <h3><a name="negotiation" id="negotiation">³»¿ëÇù»ó</a></h3>
217
218       
219
220       <p>°¡´ÉÇÏ°í ÁøÂ¥ Á¶±ÝÀÇ ¼º´ÉÇâ»ó¿¡µµ °ü½ÉÀÌ Àִٸ頳»¿ëÇù»óÀ»
221       ¸·´Â´Ù. ½ÇÁ¦·Î Çù»óÀÇ À̵æÀº ¼º´ÉÀúÇϺ¸´Ù ÀÛ´Ù. ¼­¹ö¸¦
222       ºü¸£°Ô ÇÒ ¼ö ÀÖ´Ù. ´ÙÀ½°ú °°ÀÌ ¿ÍÀϵåÄ«µå¸¦ »ç¿ëÇϴ ´ë½Å:</p>
223
224       <div class="example"><p><code>
225         DirectoryIndex index
226       </code></p></div>
227
228       <p>¿ÏÀüÇÑ ¸ñ·ÏÀ» »ç¿ëÇÑ´Ù:</p>
229
230       <div class="example"><p><code>
231         DirectoryIndex index.cgi index.pl index.shtml index.html
232       </code></p></div>
233
234       <p>°¡Àå ÈçÇÑ °ÍÀ» ¾Õ¿¡ µÐ´Ù.</p>
235
236       <p>¶Ç, µð·ºÅ丮¿¡¼­ ÆÄÀϵéÀ» Ã£´Â <code>MultiViews</code>
237       º¸´Ù´Â, ÇÑ ÆÄÀϸ¸ ÀÐÀ¸¸é ÇÊ¿äÇÑ Á¤º¸¸¦ ¾òÀ» ¼ö ÀÖ´Â
238       <code>type-map</code> ÆÄÀÏÀ» Á÷Á¢ ¸¸µå´Â °ÍÀÌ ´õ ºü¸§À»
239       ¸í½ÉÇ϶ó.</p>
240
241     <p>»çÀÌÆ®¿¡ ³»¿ëÇù»óÀÌ ÇÊ¿äÇÏ´Ù¸é Çù»óÀ» À§ÇØ <code>Options
242     MultiViews</code> Áö½Ã¾î¸¦ »ç¿ëÇϱ⺸´Ù <code>type-map</code>
243     ÆÄÀÏÀ» °í·ÁÇ϶ó. Çù»ó¹æ¹ý¿¡ ´ëÇÑ ÀÚ¼¼ÇÑ ¼³¸í°ú
244     <code>type-map</code> ÆÄÀÏÀ» ¸¸µå´Â ¹æ¹ýÀº <a href="../content-negotiation.html">³»¿ëÇù»ó</a> ¹®¼­¸¦ Âü°íÇ϶ó.</p>
245
246     
247
248     <h3>¸Þ¸ð¸®´ëÀÀ (memory-mapping)</h3>
249
250       
251
252       <p>¿¹¸¦ µé¾î, server-side-include¸¦ Ã³¸®Çϴ µî ¾ÆÆÄÄ¡
253       2.0ÀÌ Àü¼ÛÇÒ ÆÄÀÏÀ» ÀÐÀ»¶§ ¿î¿µÃ¼Á¦°¡ <code>mmap(2)</code>
254       µîÀ» Áö¿øÇÑ´Ù¸é ÆÄÀÏÀ» ¸Þ¸ð¸®´ëÀÀÇÑ´Ù.</p>
255
256       <p>¿©·¯ Ç÷¡Æû¿¡¼­ ¸Þ¸ð¸®´ëÀÀÀ» ¼º´ÉÀ» Çâ»óÇÑ´Ù. ±×·¯³ª
257       ¸Þ¸ð¸®´ëÀÀÀÌ ¼­¹öÀÇ ¼º´ÉÀ» ¶³¾îÆ®¸®°í ½ÉÁö¾î ¾ÈÁ¤¼ºÀ»
258       ÇØÄ¡´Â °æ¿ì°¡ ÀÖ´Ù:</p>
259
260       <ul>
261         <li>
262           <p>¾î¶² ¿î¿µÃ¼Á¦¿¡¼­ <code>mmap</code>Àº CPU °³¼ö°¡
263           ¸¹¾ÆÁú¶§ <code>read(2)</code> ¸¸Å­ È®À强ÀÌ ÁÁÁö ¾Ê´Ù.
264           ¿¹¸¦ µé¾î, ´ÙÁßÇÁ·Î¼¼¼­ Solaris ¼­¹ö¿¡¼­ ¾ÆÆÄÄ¡ 2.0Àº
265           Á¾Á¾ <code>mmap</code>À» »ç¿ëÇÏÁö ¾ÊÀ»¶§ ¼­¹ö°¡ Ã³¸®ÇÑ
266           ÆÄÀÏÀ» ´õ »¡¸® Àü¼ÛÇÑ´Ù.</p>
267         </li>
268
269         <li>
270           <p>NFS ¸¶¿îÆ®ÇÑ ÆÄÀϽýºÅÛ¿¡ Àִ ÆÄÀÏÀ» ¸Þ¸ð¸®´ëÀÀÇÏ´Â
271           µµÁß¿¡ ´Ù¸¥ NFS Å¬¶óÀ̾ðÆ®¿¡ Àִ ÇÁ·Î¼¼½º°¡ ÆÄÀÏÀ»
272           Áö¿ì°Å³ª ÆÄÀÏÅ©±â¸¦ ÁÙÀ̸é, À¥¼­¹ö ÇÁ·Î¼¼½º°¡ ´ÙÀ½
273           ¹ø¿¡ ¸Þ¸ð¸®´ëÀÀÇÑ ÆÄÀϳ»¿ëÀ» ÀÐÀ»¶§ bus error°¡ ¹ß»ýÇÒ
274           ¼ö ÀÖ´Ù.</p>
275         </li>
276       </ul>
277
278       <p>À§ÀÇ Á¶°Ç¿¡ ÇØ´çÇϸé Àü¼ÛÇϴ ÆÄÀÏÀ» ¸Þ¸ð¸®´ëÀÀÇÏÁö
279       ¾Êµµ·Ï <code>EnableMMAP off</code>¸¦ »ç¿ëÇؾߠÇÑ´Ù. (ÁÖÀÇ:
280       ÀÌ Áö½Ã¾î´Â µð·ºÅ丮º°·Î º¯°æÇÒ ¼ö ÀÖ´Ù.)</p>
281
282     
283
284     <h3>Sendfile</h3>
285
286       
287
288       <p>¾ÆÆÄÄ¡´Â ¿î¿µÃ¼Á¦°¡ <code>sendfile(2)</code>À» Áö¿øÇϸé
289       Ä¿³Î sendfileÀ» »ç¿ëÇÏ¿© -- ¿¹¸¦ µé¾î, Á¤Àû ÆÄÀÏÀ» ¼­ºñ½ºÇÒ¶§
290       -- Àü¼ÛÇÒ ÆÄÀÏÀ» Á÷Á¢ ÀÐÁö¾ÊÀ» ¼ö ÀÖ´Ù.</p>
291
292       <p>¿©·¯ Ç÷¡Æû¿¡¼­ sendfileÀ» »ç¿ëÇϸé read¿Í send¸¦ µû·Î
293       ÇÒ ÇÊ¿ä°¡ ¾ø¾î¼­ »¡¶óÁø´Ù. ±×·¯³ª sendfileÀ» »ç¿ëÇϸé
294       À¥¼­¹öÀÇ ¾ÈÁ¤¼ºÀ» ÇØÄ¡°ÔµÇ´Â °æ¿ì°¡ ÀÖ´Ù:</p>
295
296       <ul>
297         <li>
298           <p>sendfile Áö¿øÀÌ À߸øµÇ¾ú°í ÄÄÆÄÀÏ ½Ã½ºÅÛÀÌ ÀÌÁ¡À»
299           ¹ß°ßÇÏÁö ¸øÇϴ Ç÷¡ÆûÀÌ ÀÖ´Ù. Æ¯È÷ ´Ù¸¥ ÄÄÇ»ÅÍ¿¡¼­
300           ½ÇÇàÆÄÀÏÀ» ÄÄÆÄÀÏÇÏ¿© sendfile Áö¿øÀÌ À߸øµÈ ÄÄÇ»ÅÍ·Î
301           °¡Á®¿Â °æ¿ì¿¡ °¡´ÉÇÏ´Ù.</p>
302         </li>
303         <li>
304           <p>Ä¿³ÎÀº ÀÚ½ÅÀǠij½¬¸¦ »ç¿ëÇÏ¿© NFS·Î ¸¶¿îÆ®ÇÑ ÆÄÀÏÀ»
305           ¾ÈÁ¤ÀûÀ¸·Î ¼­ºñ½ºÇÒ ¼ö ¾ø´Â °æ¿ì°¡ ÀÖ´Ù.</p>
306         </li>
307       </ul>
308
309       <p>À§ÀÇ Á¶°Ç¿¡ ÇØ´çÇϸé ÆÄÀÏÀ» sendfile Àü¼ÛÇÏÁö ¾Êµµ·Ï
310       <code>EnableSendfile off</code>¸¦ »ç¿ëÇؾߠÇÑ´Ù. (ÁÖÀÇ:
311       ÀÌ Áö½Ã¾î´Â µð·ºÅ丮º°·Î º¯°æÇÒ ¼ö ÀÖ´Ù.)</p>
312
313     
314
315     <h3><a name="process" id="process">ÇÁ·Î¼¼½º »ý¼º</a></h3>
316
317       
318
319       <p>¾ÆÆÄÄ¡ 1.3 ÀÌÀü¿¡´Â <code class="directive"><a href="../mod/prefork.html#minspareservers">MinSpareServers</a></code>, <code class="directive"><a href="../mod/prefork.html#maxspareservers">MaxSpareServers</a></code>, <code class="directive"><a href="../mod/mpm_common.html#startservers">StartServers</a></code> ¼³Á¤ÀÌ ¸ðµÎ
320       º¥Ä¡¸¶Å© °á°ú¿¡ Å« ¿µÇâÀ» ¹ÌÃÆ´Ù. Æ¯È÷ ¾ÆÆÄÄ¡´Â ÀÛ¾÷À»
321       ¼­ºñ½ºÇϱâÀ§ÇØ ÃæºÐÇÑ Àڽļö¿¡ ´Ù´Ù¸¦ ¶§±îÁö "µµ´Þ" ±â°£ÀÌ
322       ÇÊ¿äÇß´Ù. Ã³À½ <code class="directive"><a href="../mod/mpm_common.html#startservers">StartServers</a></code>°³ ÀÚ½ÄÀ»
323       ¸¸µçÈÄ, <code class="directive"><a href="../mod/prefork.html#minspareservers">MinSpareServers</a></code>
324       ¼³Á¤°ª±îÁö ÃÊ´ç ÀÚ½ÄÀ» Çϳª¾¿ ¸¸µé¾ú´Ù. ±×·¡¼­ <code class="directive"><a href="../mod/mpm_common.html#startservers">StartServers</a></code> ±âº»°ªÀÌ
325       <code>5</code>ÀΠ¼­¹ö¿¡ Å¬¶óÀ̾ðÆ® 100°³°¡ µ¿½Ã¿¡ Á¢¼ÓÇϸé
326       ºÎÇϸ¦ Ã³¸®Çϱ⿡ ÃæºÐÇÑ ÀÚ½ÄÀ» ¸¸µé±â±îÁö 95ÃÊ°¡ °É·È´Ù.
327       ÀÚÁÖ Àç½ÃÀÛÇÏÁö ¾Ê´Â ½ÇÁ¦ ¼­¹ö¿¡¼­´Â Àß µ¿ÀÛÇÏÁö¸¸, 10ºÐ°£¸¸
328       ½ÇÇàÇϴ º¥Ä¡¸¶Å© °á°ú´Â ¸Å¿ì ³ª»Ú°Ô ³ª¿Â´Ù.</p>
329
330       <p>ÃÊ´ç ÇÑ°³ ±ÔÄ¢Àº ÀÚ½ÄÀ» »õ·Î ½ÃÀÛÇϸ鼭 ¼­¹ö¿¡ ¹«¸®¸¦
331       ÁÖÁö ¾ÊÀ¸·Á°í Á¤Çß´Ù. ÄÄÇ»ÅÍ°¡ ÀÚ½ÄÀ» ½ÃÀÛÇÏ´À¶ó ¹Ù»Ú¸é
332       ¿äûÀ» ¼­ºñ½ºÇÒ ¼ö ¾ø´Ù. ±×·¯³ª ÀÌ ±ÔÄ¢ÀÌ ¾ÆÆÄÄ¡ÀǠü°¨
333       ¼º´É¿¡ ¾Ç¿µÇâÀ» Á־¯°æÇÏ¿´´Ù. ¾ÆÆÄÄ¡ 1.3¿¡¼­ ÃÊ´ç ÇÑ°³
334       ±ÔÄ¢Àº ¿ÏÈ­µÇ¾ú´Ù. ÄÚµå´Â ÀڽĠÇÑ°³¸¦ ¸¸µé°í, 1ÃÊ ½¬°í,
335       µÎ°³¸¦ ¸¸µé°í, 1ÃÊ ½¬°í, ³×°³¸¦ ¸¸µé°í, ÀÌ·± ½ÄÀ¸·Î ÃÊ´ç
336       ÀÚ½ÄÀ» 32°³ ¸¸µé¶§±îÁö Áö¼ö·Î Áõ°¡ÇÑ´Ù. Àڽļö°¡ <code class="directive"><a href="../mod/prefork.html#minspareservers">MinSpareServers</a></code> ¼³Á¤¿¡ ´Ù´Ù¸£¸é
337       Áõ°¡¸¦ Áß´ÜÇÑ´Ù.</p>
338
339       <p>ÀÌ °æ¿ì ¹ÝÀÀ¼Óµµ°¡ »¡¶óÁ®¼­ <code class="directive"><a href="../mod/prefork.html#minspareservers">MinSpareServers</a></code>, <code class="directive"><a href="../mod/prefork.html#maxspareservers">MaxSpareServers</a></code>, <code class="directive"><a href="../mod/mpm_common.html#startservers">StartServers</a></code>¸¦ °ÅÀÇ ¼³Á¤ÇÒ ÇÊ¿ä°¡ ¾ø´Ù. ÀÏÃÊ¿¡
340       ÀÚ½ÄÀ» 4°³ ÀÌ»ó »ý¼ºÇϸé <code class="directive"><a href="../mod/core.html#errorlog">ErrorLog</a></code>¿¡ ±â·ÏÇÑ´Ù. ÀÌ·± ¿À·ù¹®ÀÌ
341       ¸¹ÀÌ º¸À̸é ÀÌ ¼³Á¤µéÀ» Á¶ÀýÇϱ根ٶõ´Ù.
342       <code class="module"><a href="../mod/mod_status.html">mod_status</a></code> °á°ú°¡ µµ¿òÀÌ µÉ °ÍÀÌ´Ù.</p>
343
344     <p>ÇÁ·Î¼¼½º »ý¼º°ú °ü·ÃÇÏ¿© <code class="directive"><a href="../mod/mpm_common.html#maxrequestsperchild">MaxRequestsPerChild</a></code> ¼³Á¤Àº
345     ÇÁ·Î¼¼½º¸¦ Á¾·áÇÑ´Ù. ±âº»°ªÀº ÀڽĴç Ã³¸®ÇÒ ¿äû¼ö¿¡ Á¦ÇÑÀÌ
346     ¾ø´Ù´Â <code>0</code>ÀÌ´Ù. ÇöÀç ¼³Á¤ÀÌ <code>30</code>°ú
347     °°ÀÌ ¸Å¿ì ÀÛÀº °ªÀ¸·Î ¼³Á¤µÇÀÖ´Ù¸é, °ªÀ» »ó´çÈ÷ ³ôÈú ÇÊ¿ä°¡
348     ÀÖ´Ù. SunOS³ª ¿À·¡µÈ Solaris ¹öÀüÀ» »ç¿ëÇÑ´Ù¸é, ¸Þ¸ð¸®À¯Ã⶧¹®¿¡
349     ÀÌ °ªÀ» <code>10000</code> Á¤µµ·Î ¼³Á¤Ç϶ó.</p>
350
351     <p>¿¬°áÀ¯Áö(keep-alive)¸¦ »ç¿ëÇÑ´Ù¸é ÀڽĵéÀº À̹̠¿­¸°
352     ¿¬°á¿¡¼­ Ãß°¡ ¿äûÀ» ±â´Ù¸®¸ç ¾Æ¹«°Íµµ ÇÏÁö¾Ê±â¶§¹®¿¡ °è¼Ó
353     ¹Ù»Ú´Ù. <code class="directive"><a href="../mod/core.html#keepalivetimeout">KeepAliveTimeout</a></code>ÀÇ
354     ±âº»°ª <code>15</code> Ãʴ ÀÌ·± Çö»óÀ» ÃÖ¼ÒÈ­ÇÑ´Ù. ³×Æ®¿÷
355     ´ë¿ªÆø°ú ¼­¹ö ÀÚ¿ø °£ÀÇ ±ÕÇüÀÌ ¸Â°Ô ¼³Á¤ÇÑ´Ù. <a href="http://www.research.digital.com/wrl/techreports/abstracts/95.4.html">
356     ¿¬°áÀ¯ÁöÀÇ ´ëºÎºÐÀÇ ÀÌÁ¡ÀÌ »ç¶óÁö±â¶§¹®¿¡</a> ¾î¶² °æ¿ì¿¡µµ
357     ÀÌ °ªÀ» <code>60</code> ÃÊ ÀÌ»óÀ¸·Î ¿Ã¸®Áö ¸¶¶ó.</p>
358
359     
360
361   </div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
362 <div class="section">
363 <h2><a name="compiletime" id="compiletime">ÄÄÆÄÀϽ༳Á¤¿¡ ´ëÇؼ­</a></h2>
364
365     
366
367     <h3>MPM ¼±ÅÃ</h3>
368
369       
370
371       <p>¾ÆÆÄÄ¡ 2.x´Â <a href="../mpm.html">´ÙÁß󸮸ðµâ</a>
372       (MPMs)À̶ó´Â ±³Ã¼ÇÒ ¼ö Àִ µ¿±âÈ­ ¸ðµ¨À» Áö¿øÇÑ´Ù. ¾ÆÆÄÄ¡¸¦
373       ÄÄÆÄÀÏÇÒ¶§ MPMÀ» ¼±ÅÃÇؾߠÇÑ´Ù. <code class="module"><a href="../mod/beos.html">beos</a></code>,
374       <code class="module"><a href="../mod/mpm_netware.html">mpm_netware</a></code>, <code class="module"><a href="../mod/mpmt_os2.html">mpmt_os2</a></code>,
375       <code class="module"><a href="../mod/mpm_winnt.html">mpm_winnt</a></code>¿Í °°À̠ƯÁ¤ Ç÷¡Æû¿¡¼­¸¸ »ç¿ëÇÒ
376       ¼ö Àִ MPMµµ ÀÖ´Ù. ÀϹÝÀûÀΠÀ¯´Ð½º·ù ½Ã½ºÅÛÀº ¿©·¯ MPM
377       Áß¿¡ Çϳª¸¦ ¼±ÅÃÇÒ ¼ö ÀÖ´Ù. À¥¼­¹öÀÇ ¼Óµµ¿Í
378       È®À强(scalability)Àº ¾î¶² MPMÀ» ¼±ÅÃÇ߳Ŀ¡ ´Þ·È´Ù:</p>
379
380       <ul>
381
382         <li><code class="module"><a href="../mod/worker.html">worker</a></code> MPMÀº ¿©·¯ ÀڽĠÇÁ·Î¼¼½º°¡
383         °¢°¢ ¿©·¯ ¾²·¹µå¸¦ »ç¿ëÇÑ´Ù. °¢ ¾²·¹µå´Â Çѹø¿¡ ÇÑ ¿¬°áÀ»
384         ´ã´çÇÑ´Ù. ÀϹÝÀûÀ¸·Î worker´Â prefork MPM º¸´Ù ÀûÀº
385         ¸Þ¸ð¸®¸¦ »ç¿ëÇϹǷΠÅë½Å·®ÀÌ ¸¹Àº ¼­¹ö¿¡ ÀûÀýÇÏ´Ù.</li>
386
387         <li><code class="module"><a href="../mod/prefork.html">prefork</a></code> MPMÀº ¾²·¹µå°¡ ÇÑ°³ÀΠÀÚ½Ä
388         ÇÁ·Î¼¼½º¸¦ ¿©·¯°³ »ç¿ëÇÑ´Ù. °¢ ÇÁ·Î¼¼½º´Â Çѹø¿¡ ÇÑ
389         ¿¬°áÀ» ´ã´çÇÑ´Ù. ¿©·¯ ½Ã½ºÅÛ¿¡¼­ preforkÀÇ ¼Óµµ´Â worker¿Í
390         ºñ½ÁÇÏÁö¸¸, ´õ ¸¹Àº ¸Þ¸ð¸®¸¦ »ç¿ëÇÑ´Ù. ´ÙÀ½°ú °°Àº »óȲ¿¡¼­
391         ¾²·¹µå¸¦ »ç¿ëÇÏÁö ¾Ê´Â prefork ¹æ½ÄÀÌ worker¿¡ ºñÇØ
392         ÀÌÁ¡À» °¡Áø´Ù: ¾²·¹µå¿¡ ¾ÈÀüÇÏÁö (thread-safe) ¾ÊÀº
393         Á¦»ïÀÚ°¡ ¸¸µç ¸ðµâÀ» »ç¿ëÇÒ ¼ö ÀÖ°í, ¾²·¹µå µð¹ö±ë Áö¿øÀÌ
394         ºó¾àÇÑ Ç÷¡Æû¿¡¼­ ½±°Ô µð¹ö±ëÇÒ ¼ö ÀÖ´Ù.</li>
395
396       </ul>
397
398       <p>ÀÌ MPMµé°ú ´Ù¸¥ MPM¿¡ ´ëÇØ ´õ ÀÚ¼¼ÇÑ Á¤º¸´Â MPM <a href="../mpm.html">¹®¼­</a>¸¦ Âü°íÇϱ根ٶõ´Ù.</p>
399
400     
401
402     <h3><a name="modules" id="modules">¸ðµâ</a></h3>
403
404         
405
406         <p>¸Þ¸ð¸® »ç¿ë·®ÀÌ ¼º´É¿¡¼­ °¡Àå Áß¿äÇÑ ¿äÀÎÀ̱⶧¹®¿¡
407         ½ÇÁ¦·Î »ç¿ëÇÏÁö ¾Ê´Â ¸ðµâÀ» Á¦°ÅÇغ¸ÀÚ. ¸ðµâÀ» <a href="../dso.html">DSO</a>·Î ÄÄÆÄÀÏÇߴٸ頰£´ÜÈ÷ ±×
408         ¸ðµâ¿¡ ´ëÇÑ <code class="directive"><a href="../mod/mod_so.html#loadmodule">LoadModule</a></code> Áö½Ã¾î¸¦ ÁÖ¼®Ã³¸®Çϸé
409         µÈ´Ù. ±×·¡¼­ ¸ðµâÀ» Á¦°ÅÇÏ°í ½ÇÇàÇÏ¿© »çÀÌÆ®°¡ ¸ðµâ¾øÀ̵µ
410         Á¤»óÀûÀ¸·Î µ¿ÀÛÇÏ´ÂÁö »ìÆ캼 ¼ö ÀÖ´Ù.</p>
411
412         <p>¹Ý´ë·Î ¸ðµâÀÌ ¾ÆÆÄÄ¡ ½ÇÇàÆÄÀÏ¿¡ Á¤ÀûÀ¸·Î ¸µÅ©µÇÀÖ´Ù¸é
413         ¿øÇÏÁö ¾Ê´Â ¸ðµâÀ» Á¦°ÅÇϱâÀ§ÇØ ¾ÆÆÄÄ¡¸¦ ÀçÄÄÆÄÀÏÇؾß
414         ÇÑ´Ù.</p>
415
416         <p>¿©±â¼­ ´ç¿¬È÷ ¾î¶² ¸ðµâÀ» »ç¿ëÇÏ°í »ç¿ëÇÏÁö ¸»Áö
417         Àǹ®ÀÌ »ý±ä´Ù. Á¤´äÀº À¥»çÀÌÆ®¸¶´Ù ´Ù¸£´Ù. ±×·¯³ª ¾Æ¸¶µµ
418         <em>ÃÖ¼ÒÇÑ</em> <code class="module"><a href="../mod/mod_mime.html">mod_mime</a></code>,
419         <code class="module"><a href="../mod/mod_dir.html">mod_dir</a></code>, <code class="module"><a href="../mod/mod_log_config.html">mod_log_config</a></code>
420         ¸ðµâÀº »ç¿ëÇÒ °ÍÀÌ´Ù. ¹°·Ð À¥»çÀÌÆ®¿¡ ·Î±×ÆÄÀÏÀÌ ÇÊ¿ä¾ø´Ù¸é
421         <code>mod_log_config</code>´Â ¾ø¾îµµ µÈ´Ù. ±×·¯³ª ÃßõÇÏÁö
422         ¾Ê´Â´Ù.</p>
423
424     
425
426     <h3>Atomic ¸í·É</h3>
427
428       
429
430       <p><code class="module"><a href="../mod/mod_cache.html">mod_cache</a></code> °°Àº ¸ðµâ°ú ÃÖ±Ù °³¹ßÁßÀÎ
431       worker MPMÀº APRÀÇ atomic API¸¦ »ç¿ëÇÑ´Ù. ÀÌ API´Â °æ·®±Þ
432       ¾²·¹µå µ¿±âÈ­¸¦ À§ÇÒ atomic ¸í·ÉÀ» Á¦°øÇÑ´Ù.</p>
433
434       <p>±âº»ÀûÀ¸·Î APRÀº °¢ ¿î¿µÃ¼Á¦/CPU Ç÷¡Æû¿¡¼­ °¡Àå È¿À²ÀûÀÎ
435       ¹æ¹ýÀ» »ç¿ëÇÏ¿© ÀÌ ¸í·ÉÀ» ±¸ÇöÇÑ´Ù. ¿¹¸¦ µé¾î, ¿©·¯ ÃÖ½Å
436       CPU¿¡´Â Çϵå¿þ¾î·Î atomic compare-and-swap (CAS) ¿¬»êÀ»
437       Çϴ ¸í·É¾î°¡ ÀÖ´Ù. ±×·¯³ª ¾î¶² Ç÷¡Æû¿¡¼­ APRÀº ÀÌ·±
438       ¸í·É¾î°¡ ¾ø´Â ¿À·¡µÈ CPU¿Í È£È¯¼ºÀ» À§ÇØ ´õ ´À¸° mutex±â¹Ý
439       ±¸ÇöÀ» ±âº»ÀûÀ¸·Î »ç¿ëÇÑ´Ù. ÀÌ·± Ç÷¡Æû¿¡¼­ ¾ÆÆÄÄ¡¸¦
440       ÄÄÆÄÀÏÇÒ¶§ ¾ÆÆÄÄ¡¸¦ ÃֽŠCPU¿¡¼­¸¸ ½ÇÇàÇÒ °èȹÀ̶ó¸é,
441       ¾ÆÆÄÄ¡¸¦ ±¸¼ºÇÒ¶§ <code>--enable-nonportable-atomics</code>
442       ¿É¼ÇÀ» »ç¿ëÇÏ¿© ´õ ºü¸¥ atomic ±¸ÇöÀ» ¼±ÅÃÇÒ ¼ö ÀÖ´Ù:</p>
443
444       <div class="example"><p><code>
445         ./buildconf<br />
446         ./configure --with-mpm=worker --enable-nonportable-atomics=yes
447       </code></p></div>
448
449       <p><code>--enable-nonportable-atomics</code> ¿É¼ÇÀº ´ÙÀ½°ú
450       °°Àº Ç÷¡Æû¿¡ ¿µÇâÀÌ ÀÖ´Ù:</p>
451
452       <ul>
453
454         <li>SPARC¿¡¼­ Solaris<br />
455             ±âº»ÀûÀ¸·Î APRÀº Solaris/SPARC¿¡¼­ mutex±â¹Ý atomicÀ»
456             »ç¿ëÇÑ´Ù. ±×·¯³ª ±¸¼ºÇÒ¶§
457             <code>--enable-nonportable-atomics</code>¸¦ »ç¿ëÇϸé
458             APRÀº ºü¸¥ Çϵå¿þ¾î compare-and-swapÀ» À§ÇÑ SPARC
459             v8plus ¸í·É¾î¸¦ »ç¿ëÇÑ´Ù. ÀÌ ¿É¼ÇÀ» »ç¿ëÇϸé atomic
460             ¸í·ÉÀÌ ´õ È¿À²ÀûÀÌÁö¸¸ (CPU¸¦ ´ú »ç¿ëÇÏ°í ´õ ³ôÀº
461             µ¿±âÈ­°¡ °¡´ÉÇÏ´Ù), ÄÄÆÄÀÏÇÑ ½ÇÇàÆÄÀÏÀº UltraSPARC
462             Ä¨¿¡¼­¸¸ ½ÇÇàÇÒ ¼ö ÀÖ´Ù.
463         </li>
464
465         <li>Linux on x86<br />
466             ±âº»ÀûÀ¸·Î APRÀº ¸®´ª½º¿¡¼­ mutex±â¹Ý atomicÀ»
467             »ç¿ëÇÑ´Ù. ±×·¯³ª ±¸¼ºÇÒ¶§
468             <code>--enable-nonportable-atomics</code>¸¦ »ç¿ëÇϸé
469             APRÀº ºü¸¥ Çϵå¿þ¾î compare-and-swapÀ» À§ÇÑ 486
470             ¸í·É¾î¸¦ »ç¿ëÇÑ´Ù. ´õ È¿À²ÀûÀΠatomic ¸í·ÉÀÌ °¡´ÉÇÏÁö¸¸,
471             ÄÄÆÄÀÏÇÑ ½ÇÇàÆÄÀÏÀº 486 ÀÌ»ó Ä¨¿¡¼­¸¸ (386Àº ¾ÈµÈ´Ù)
472             ½ÇÇàÇÒ ¼ö ÀÖ´Ù.
473         </li>
474
475       </ul>
476
477     
478
479     <h3>mod_status¿Í ExtendedStatus On</h3>
480
481       
482
483       <p>¾ÆÆÄÄ¡¸¦ ÄÄÆÄÀÏÇÒ¶§ <code class="module"><a href="../mod/mod_status.html">mod_status</a></code>¸¦ Æ÷ÇÔÇÏ°í
484       ½ÇÇàÇÒ¶§ <code>ExtendedStatus On</code>À» ¼³Á¤Çϸ頾ÆÆÄÄ¡´Â
485       ¿äûÀ» ¹ÞÀ»¶§¸¶´Ù <code>gettimeofday(2)</code>(ȤÀº ¿î¿µÃ¼Á¦¿¡
486       µû¶ó <code>times(2)</code>)¸¦ µÎ¹ø È£ÃâÇÏ°í (1.3 ÀÌÀü¿¡´Â)
487       <code>time(2)</code>µµ Ãß°¡·Î ¿©·¯¹ø È£ÃâÇÑ´Ù. »óÅ º¸°í¼­¿¡
488       µ¿À۽ð£ÀÌ ÇÊ¿äÇϱ⠶§¹®ÀÌ´Ù. ÃÖ»óÀÇ ¼º´ÉÀ» ¾òÀ¸·Á¸é
489       (±âº»°ªÀÎ) <code>ExtendedStatus off</code>¸¦ ¼³Á¤ÇÑ´Ù.</p>
490
491     
492
493     <h3>accept Á÷·ÄÈ­ - ¿©·¯ ¼ÒÄÏ</h3>
494
495       
496
497     <div class="warning"><h3>ÁÖÀÇ:</h3>
498       <p> ¾Æ·¡ ¹®¼­´Â ¾ÆÆÄÄ¡ À¥¼­¹ö 2.0 ¹öÀü¿¡¼­ º¯°æµÈ ³»¿ëÀ»
499       ´ã°í ÀÖÁö ¾Ê´Ù. ¾ÆÁ÷µµ À¯È¿ÇÑ Á¤º¸°¡ ÀÖÁö¸¸, ÁÖÀÇÇؼ­
500       »ç¿ëÇϱ根ٶõ´Ù.</p>
501     </div>
502
503       <p>À¯´Ð½º ¼ÒÄÏ APIÀÇ ´ÜÁ¡À» ¼³¸íÇÑ´Ù. À¥¼­¹ö°¡ ¿©·¯ Æ÷Æ®
504       È¤Àº ¿©·¯ ÁÖ¼Ò¸¦ ±â´Ù¸®±âÀ§ÇØ ¿©·¯ <code class="directive"><a href="../mod/mpm_common.html#listen">Listen</a></code>À» »ç¿ëÇÑ´Ù°í °¡Á¤ÇÏÀÚ.
505       ¿¬°áÀÌ °¡´ÉÇÑÁö °¢ ¼ÒÄÏÀ» °Ë»çÇϱâÀ§ÇØ ¾ÆÆÄÄ¡´Â
506       <code>select(2)</code>¸¦ »ç¿ëÇÑ´Ù. <code>select(2)</code>´Â
507       ¼ÒÄÏ¿¡ ±â´Ù¸®°í Àִ ¿¬°áÀÌ <em>¾ø´ÂÁö</em> È¤Àº <em>ÃÖ¼ÒÇÑ
508       ÇÑ°³</em> ÀÖ´ÂÁö ¾Ë·ÁÁØ´Ù. ¾ÆÆÄÄ¡¿¡´Â ¿©·¯ ÀÚ½ÄÀÌ ÀÖ°í,
509       ½¬°í Àִ ¸ðµç ÀÚ½ÄÀº µ¿½Ã¿¡ »õ·Î¿î ¿¬°áÀ» °Ë»çÇÑ´Ù. ¿ø·¡
510       ±¸ÇöÀº ´ÙÀ½°ú ºñ½ÁÇÏ´Ù (ÀÌ ¿¹´Â Äڵ忡¼­ °¡Á®¿ÀÁö ¾Ê¾Ò´Ù.
511       ´ÜÁö ¼³¸íÇϱâÀ§ÇÑ ¿ëµµ·Î ¸¸µé¾ú´Ù.):</p>
512
513       <div class="example"><p><code>
514         for (;;) {<br />
515         <span class="indent">
516           for (;;) {<br />
517           <span class="indent">
518             fd_set accept_fds;<br />
519             <br />
520             FD_ZERO (&amp;accept_fds);<br />
521             for (i = first_socket; i &lt;= last_socket; ++i) {<br />
522             <span class="indent">
523               FD_SET (i, &amp;accept_fds);<br />
524             </span>
525             }<br />
526             rc = select (last_socket+1, &amp;accept_fds, NULL, NULL, NULL);<br />
527             if (rc &lt; 1) continue;<br />
528             new_connection = -1;<br />
529             for (i = first_socket; i &lt;= last_socket; ++i) {<br />
530             <span class="indent">
531               if (FD_ISSET (i, &amp;accept_fds)) {<br />
532               <span class="indent">
533                 new_connection = accept (i, NULL, NULL);<br />
534                 if (new_connection != -1) break;<br />
535               </span>
536               }<br />
537             </span>
538             }<br />
539             if (new_connection != -1) break;<br />
540           </span>
541           }<br />
542           process the new_connection;<br />
543         </span>
544         }
545       </code></p></div>
546
547       <p>±×·¯³ª À§ÀÇ ´Ü¼øÇÑ ±¸Çö¿¡´Â ½É°¢ÇÑ °í°¥(starvation)
548       ¹®Á¦°¡ ÀÖ´Ù. ¿©·¯ ÀÚ½ÄÀÌ µ¿½Ã¿¡ ÀÌ ¹Ýº¹¹®À» ½ÇÇàÇϸé,
549       ¿äûÀ» ±â´Ù¸®¸ç ¸ðµÎ <code>select</code>¿¡¼­ ¸ØÃá´Ù. À̶§
550       ¾î¶² ¼ÒÄÏ¿¡ ¿äûÀÌ Çϳª¶óµµ µé¾î¿À¸é ¸ðµç ÀÚ½ÄÀÌ ±ú¾î³­´Ù
551       (±ú¾î³ª´Â ÀÚ½ÄÀÇ °³¼ö´Â ¿î¿µÃ¼Á¦¿Í Å¸Àֿ̹¡ µû¶ó ´Ù¸£´Ù).
552       À̵éÀº ¸ðµÎ ¿¬°áÀ» <code>accept</code>Çϱ栽õµÇÑ´Ù. ±×·¯³ª
553       (¾ÆÁ÷µµ ÇÑ ¿¬°á¸¸ ´ë±âÁßÀ̶ó¸é) ÇÑ Àڽĸ¸ ¼º°øÇÏ°í, ³ª¸ÓÁö´Â
554       <code>accept</code>¿¡¼­ <em>¸ØÃá´Ù.</em> ±×·¯¸é ÀÌ ÀڽĵéÀº
555       ÇÑ ¼ÒÄÏÀÇ ¿äû¸¸À» ¼­ºñ½ºÇϵµ·Ï ¹­¿©¼­, ±× ¼ÒÄÏÀ¸·Î »õ·Î¿î
556       ¿äûÀÌ ÃæºÐÈ÷ µé¾î¿Í¼­ ¸ðµç ÀÚ½ÄÀ» ±ú¿ï¶§±îÁö Á¤ÁöÇØÀÖ´Ù.
557       ÀÌ·± °í°¥ ¹®Á¦´Â <a href="http://bugs.apache.org/index/full/467">PR#467</a>¿¡
558       Ã³À½ º¸°íµÇ¾ú´Ù. ÃÖ¼ÒÇÑ µÎ°¡Áö ÇØ°áÃ¥ÀÌ ÀÖ´Ù.</p>
559
560       <p>ÇÑ°¡Áö´Â ¼ÒÄÏÀ» ´ë±âÇÏÁö ¾Êµµ·Ï (non-blocking) ¸¸µå´Â
561       ¹æ¹ýÀÌ´Ù. ÀÌ °æ¿ì ÀÚ½ÄÀÌ <code>accept</code>¸¦ Çصµ ¸ØÃßÁö
562       ¾Ê°í, Áï½Ã ÁøÇàÇÒ ¼ö ÀÖ´Ù. ±×·¯³ª CPU ½Ã°£À» ³¶ºñÇÑ´Ù.
563       <code>select</code>¿¡¼­ ½¬´Â ÀÚ½ÄÀÌ 10°³ ÀÖ°í, »õ·Î ¿¬°áÀÌ
564       ÇÑ°³ µé¾î¿Ô´Ù°í °¡Á¤ÇÏÀÚ. ±×·¯¸é ÀÌ ÀÚ½ÄÁß 9°³´Â ±ú¾î³ª¼­
565       ¿¬°áÀ» <code>accept</code>Çϱ栽õµÇÏ°í ½ÇÆÐÇϸ頾ƹ«
566       Àϵµ ÇÏÁö ¾Ê°í ´Ù½Ã <code>select</code>¸¦ ¹Ýº¹ÇÑ´Ù. ´Ù½Ã
567       <code>select</code>·Î µ¹¾Æ¿Ã ¶§±îÁö ¾î¶² Àڽĵµ ´Ù¸¥ ¼ÒÄÏ¿¡
568       µé¾î¿Â ¿äûÀ» ¼­ºñ½ºÇÏÁö ¾Ê´Â´Ù. (´ÙÁßÇÁ·Î¼¼¼­ ÄÄÇ»ÅÍ¿¡¼­)
569       ½¬´Â ÀڽĠ°³¼ö¸¸Å­ CPU °³¼ö°¡ Àִ µå¹® °æ¿ì°¡ ¾Æ´Ï¶ó¸é
570       ÀÌ ÇØ°áÃ¥Àº º°·Î ÁÁ¾Æº¸ÀÌÁö ¾Ê´Â´Ù.</p>
571
572       <p>´Ù¸¥ ¹æ¹ýÀº ¾ÆÆÄÄ¡°¡ »ç¿ëÇϴ ¹æ¹ýÀ¸·Î ³»ºÎ ¹Ýº¹¹®¿¡
573       ÇÑ Àڽĸ¸À» µé¿©º¸³½´Ù. ¹Ýº¹¹®Àº ´ÙÀ½°ú °°´Ù (Â÷À̸¦
574       °­Á¶ÇßÀ½):</p>
575
576       <div class="example"><p><code>
577         for (;;) {<br />
578         <span class="indent">
579           <strong>accept_mutex_on ();</strong><br />
580           for (;;) {<br />
581           <span class="indent">
582             fd_set accept_fds;<br />
583             <br />
584             FD_ZERO (&amp;accept_fds);<br />
585             for (i = first_socket; i &lt;= last_socket; ++i) {<br />
586             <span class="indent">
587               FD_SET (i, &amp;accept_fds);<br />
588             </span>
589             }<br />
590             rc = select (last_socket+1, &amp;accept_fds, NULL, NULL, NULL);<br />
591             if (rc &lt; 1) continue;<br />
592             new_connection = -1;<br />
593             for (i = first_socket; i &lt;= last_socket; ++i) {<br />
594             <span class="indent">
595               if (FD_ISSET (i, &amp;accept_fds)) {<br />
596               <span class="indent">
597                 new_connection = accept (i, NULL, NULL);<br />
598                 if (new_connection != -1) break;<br />
599               </span>
600               }<br />
601             </span>
602             }<br />
603             if (new_connection != -1) break;<br />
604           </span>
605           }<br />
606           <strong>accept_mutex_off ();</strong><br />
607           process the new_connection;<br />
608         </span>
609         }
610       </code></p></div>
611
612       <p><code>accept_mutex_on</code>°ú <code>accept_mutex_off</code>
613       <a id="serialize" name="serialize">ÇÔ¼ö</a>´Â mutex ¼¼¸¶Æ÷¾î¸¦
614       ±¸ÇöÇÑ´Ù. Çѹø¿¡ ¿ÀÁ÷ ÇÑ Àڽĸ¸ÀÌ mutex¸¦ °¡Áú ¼ö ÀÖ´Ù.
615       mutex¸¦ ±¸ÇöÇϴ ¹æ¹ýÀº ¿©·¯°¡ÁöÀÌ´Ù. ±¸Çö ¹æ¹ýÀº (1.3
616       ÀÌÀü) <code>src/conf.h</code>³ª (1.3°ú ±× ÀÌÈÄ)
617       <code>src/include/ap_config.h</code>¿¡ Á¤ÀǵÇÀÖ´Ù. ¾î¶²
618       ¾ÆÅ°ÅØÃĴ Àá±Ý(locking) ¹æ¹ýÀ» ¼±ÅÃÇÏÁö ¾Ê±â¶§¹®¿¡, ÀÌ·±
619       ¾ÆÅ°ÅØÃÄ¿¡¼­ ¿©·¯ <code class="directive"><a href="../mod/mpm_common.html#listen">Listen</a></code> Áö½Ã¾î¸¦ »ç¿ëÇϸé
620       À§ÇèÇÏ´Ù.</p>
621
622       <p>½ÇÇà½Ã <code class="directive"><a href="../mod/mpm_common.html#acceptmutex">AcceptMutex</a></code> Áö½Ã¾î¸¦ »ç¿ëÇÏ¿©
623       mutex ±¸ÇöÀ» º¯°æÇÒ ¼ö ÀÖ´Ù.</p>
624
625       <dl>
626         <dt><code>AcceptMutex flock</code></dt>
627
628         <dd>
629           <p>ÀÌ ¹æ¹ýÀº Àá±ÝÆÄÀÏÀ» Àá±×±âÀ§ÇØ <code>flock(2)</code>
630           ½Ã½ºÅÛÈ£ÃâÀ» »ç¿ëÇÑ´Ù (Àá±ÝÆÄÀÏ À§Ä¡´Â <code class="directive"><a href="../mod/mpm_common.html#lockfile">LockFile</a></code> Áö½Ã¾î·Î ÁöÁ¤).</p>
631         </dd>
632
633         <dt><code>AcceptMutex fcntl</code></dt>
634
635         <dd>
636           <p>ÀÌ ¹æ¹ýÀº Àá±ÝÆÄÀÏÀ» Àá±×±âÀ§ÇØ <code>fcntl(2)</code>
637           ½Ã½ºÅÛÈ£ÃâÀ» »ç¿ëÇÑ´Ù (Àá±ÝÆÄÀÏ À§Ä¡´Â <code class="directive"><a href="../mod/mpm_common.html#lockfile">LockFile</a></code> Áö½Ã¾î·Î ÁöÁ¤).</p>
638         </dd>
639
640         <dt><code>AcceptMutex sysvsem</code></dt>
641
642         <dd>
643           <p>(1.3°ú ±× ÀÌÈÄ) ÀÌ ¹æ¹ýÀ» SysV½Ä ¼¼¸¶Æ÷¾î¸¦ »ç¿ëÇÏ¿©
644           mutex¸¦ ±¸ÇöÇÑ´Ù. ºÒÇàÈ÷µµ SysV½Ä ¼¼¸¶Æ÷¾î´Â ³ª»Û
645           ºÎÀÛ¿ëÀÌ ÀÖ´Ù. Çϳª´Â ¾ÆÆÄÄ¡°¡ ¼¼¸¶Æ÷¾î¸¦ Á¤¸®ÇÏÁö
646           ¾Ê°í Á×À» ¼ö Àִ Á¡ÀÌ´Ù (<code>ipcs(8)</code> manpage
647           Âü°í). ´Ù¸¥ Çϳª´Â À¥¼­¹ö¿Í µ¿ÀÏÇÑ uid·Î ½ÇÇàÇÏ´Â
648           CGI°¡ (<em>Áï,</em> <code>suexec</code>³ª
649           <code>cgiwrapper</code>¸¦ »ç¿ëÇÏÁö¾Ê´Â ÇÑ ¸ðµç CGI)
650           ¼¼¸¶Æ÷¾î API¸¦ »ç¿ëÇÏ¿© ¼­ºñ½º°ÅºÎ°ø°ÝÀ» ÇÒ ¼ö ÀÖ´Â
651           Á¡ÀÌ´Ù. ÀÌ·± ÀÌÀ¯¶§¹®¿¡ IRIX¸¦ Á¦¿ÜÇÑ ¾ÆÅ°ÅØÃÄ¿¡¼­
652           ÀÌ ¹æ¹ýÀ» »ç¿ëÇÏÁö ¾Ê´Â´Ù (´ëºÎºÐÀÇ IRIX ÄÄÇ»ÅÍ¿¡¼­
653           ¾ÕÀÇ µÎ ¹æ¹ýÀº Áö³ªÄ¡°Ô ¹ö°Ì´Ù).</p>
654         </dd>
655
656         <dt><code>AcceptMutex pthread</code></dt>
657
658         <dd>
659           <p>(1.3°ú ±× ÀÌÈÄ) ÀÌ ¹æ¹ýÀº POSIX mutex¸¦ »ç¿ëÇϱ⶧¹®¿¡
660           POSIX ¾²·¹µå ±Ô¾àÀ» ¿ÏÀüÈ÷ ±¸ÇöÇÑ ¾ÆÅ°ÅØÃĶó¸é ¸ðµÎ
661           »ç¿ë°¡´ÉÇÏÁö¸¸, (2.5 ÀÌÈÄ) Solaris¿¡¼­¸¸ ±×°Íµµ Æ¯Á¤
662           ±¸¼º¿¡¼­¸¸ µ¿ÀÛÇϴ µíÇÏ´Ù. ÀÌ ¹æ¹ýÀ» ½ÃµµÇغ»´Ù¸é
663           ¼­¹ö°¡ ¸ØÃç¼­ ÀÀ´äÀ» ¾ÈÇÏ´ÂÁö »ìÆìºÁ¾ß ÇÑ´Ù. Á¤Àû
664           ³»¿ë¸¸ ¼­ºñ½ºÇϴ ¼­¹ö´Â Àß µ¿ÀÛÇϴ °Í °°´Ù.</p>
665         </dd>
666
667         <dt><code>AcceptMutex posixsem</code></dt>
668
669         <dd>
670           <p>(2.0°ú ±× ÀÌÈÄ) ÀÌ ¹æ¹ýÀº POSIX ¼¼¸¶Æ÷¾î¸¦ »ç¿ëÇÑ´Ù.
671           mutex¸¦ °¡Áø ÇÁ·Î¼¼½ºÀÇ ¾²·¹µå°¡ Á״´ٸé(segfault)
672           ¼¼¸¶Æ÷¾î ¼ÒÀ¯±ÇÀ̠ȸº¹µÇÁö ¾Ê¾Æ¼­ À¥¼­¹ö°¡ ¸ØÃá´Ù.</p>
673         </dd>
674
675       </dl>
676
677       <p>½Ã½ºÅÛ¿¡ À§ ¸ñ·Ï¿¡ ¾ø´Â Á÷·ÄÈ­(serialization) ¹æ¹ýÀÌ
678       Àִٸ頱נ¹æ¹ýÀ» »ç¿ëÇϴ Äڵ带 APR¿¡ Ãß°¡ÇÒ °¡Ä¡°¡ ÀÖ´Ù.</p>
679
680       <p>°í·Á´Â ÇغÃÁö¸¸ ±¸ÇöÇÏÁö¾ÊÀº ´Ù¸¥ ¹æ¹ýÀº ºÎºÐÀûÀ¸·Î
681       ¹Ýº¹¹®À» Á÷·ÄÈ­Çϴ ¹æ¹ýÀÌ´Ù. Áï, ÇÁ·Î¼¼¼­¸¦ ¸î°³¸¸ µé¿©º¸³»´Â
682       °ÍÀÌ´Ù. ÀÌ ¹æ¹ýÀº ¿©·¯ ÀÚ½ÄÀ» µ¿½Ã¿¡ ½ÇÇàÇÒ ¼ö À־
683       Á÷·ÄÈ­¶§¹®¿¡ Àüü ´ë¿ªÆøÀ» È°¿ëÇÏÁö ¸øÇϴ ´ÙÁßÇÁ·Î¼¼¼­
684       ÄÄÇ»ÅÍ¿¡¼­¸¸ °ü½ÉÀ» °¡Á®º¼ ¼ö ÀÖ´Ù. ¾ÕÀ¸·Î »ìÆ캼 ºÎºÐÀÌÁö¸¸,
685       ¸Å¿ì º´·ÄÈ­µÈ À¥¼­¹ö°¡ ÈçÇÏÁö ¾Ê¾Æ¼­ ¿ì¼±¼øÀ§°¡ ³·´Ù.</p>
686
687       <p>ÃÖ»óÀÇ ¼º´ÉÀ» ¾ò±âÀ§Çؼ­´Â ¿©·¯ <code class="directive"><a href="../mod/mpm_common.html#listen">Listen</a></code> ¹®À» »ç¿ëÇÏÁö ¾Ê´Â
688       °ÍÀÌ ÀÌ»óÀûÀÌ´Ù. ±×·¯³ª °è¼Ó ¼³¸íÇÑ´Ù.</p>
689
690     
691
692     <h3>accept Á÷·ÄÈ­ - ¼ÒÄÏ ÇÑ°³</h3>
693
694       
695
696       <p>¾ÕÀÇ ¼³¸íÀº ´ÙÁß¼ÒÄÏ ¼­¹ö¿¡´Â ÁÁÁö¸¸, ¼ÒÄÏÀÌ ÇÑ°³ÀÎ
697       ¼­¹ö´Â ¾î¶²°¡? ¿¬°áÀÌ µµÂøÇÒ¶§±îÁö ¸ðµç ÀÚ½ÄÀÌ
698       <code>accept(2)</code>¿¡¼­ ¸ØÃçÀֱ⶧¹®¿¡ À̷л󠰰Àº
699       ¹®Á¦°¡ ¹ß»ýÇÏÁö ¾Ê°í, °í°¥ ¹®Á¦µµ ¾ø´Ù. ±×·¯³ª ½ÇÁ¦·Î´Â
700       ¾Õ¿¡¼­ ¸»ÇÑ ´ë±âÇÏÁö ¾Ê´Â (non-blocking) ¹æ¹ý¿¡¼­ ¹ß»ýÇÏ´Â
701       "°øȸÀü(spinning)" Çö»óÀ» °¨Ãß°í ÀÖ´Ù. ´ëºÎºÐÀÇ TCP ½ºÅÃÀº
702       ¿¬°áÀÌ µµÂøÇϸé Ä¿³ÎÀÌ <code>accept</code>¿¡¼­ ¸ØÃçÀÖ´Â
703       ¸ðµç ÀÚ½ÄÀ» ±ú¿ìµµ·Ï ±¸ÇöµÇÀÖ´Ù. ÇÁ·Î¼¼½ºÁß ÇÑ°³°¡ ¿¬°áÀ»
704       ¾ò°í »ç¿ëÀÚ¿µ¿ªÀ¸·Î µ¹¾Æ°¡°í, ³ª¸ÓÁö´Â Ä¿³Î¿¡¼­ °øȸÀüÇÏ¿©
705       ¿¬°áÀÌ ¾øÀ½À» ¹ß°ßÇϸ頴ٽàÀáÀ» ÀÜ´Ù. »ç¿ëÀÚ¿µ¿ª Äڵ忡¼­´Â
706       ÀÌ·± °øȸÀüÀ» ¾Ë ¼ö ¾øÁö¸¸, ºÐ¸íÈ÷ Á¸ÀçÇÑ´Ù. ±×·¡¼­ ´ÙÁß¼ÒÄÏÀÇ
707       ´ë±âÇÏÁö ¾Ê´Â ¹æ¹ý°ú µ¿ÀÏÇÏ°Ô ºÎÇϸ¦ ³ôÀ̴ ºÒÇÊ¿äÇÑ ÇൿÀÌ
708       ÀϾ´Ù.</p>
709
710       <p>±×·¡¼­ ¿ì¸®´Â ¿©·¯ ¾ÆÅ°ÅØÃÄ¿¡¼­ ¼ÒÄÏÀÌ ÇÑ°³ÀΠ°æ¿ì¿¡µµ
711       Á÷·ÄÈ­Çϸ頴õ "Àß" µ¿ÀÛÇÔÀ» ¹ß°ßÇß´Ù. ±×·¡¼­ °ÅÀÇ ´ëºÎºÐÀÇ
712       °æ¿ì ±âº»ÀûÀ¸·Î Á÷·ÄÈ­¸¦ »ç¿ëÇÑ´Ù. ¸®´ª½º¿¡¼­ (Ä¿³Î 2.0.30,
713       128Mb ¸Þ¸ð¸®¿¡ µà¾ó Pentium pro) ½ÇÇèÇÑ °á°ú ¼ÒÄÏ ÇÑ°³¸¦
714       Á÷·ÄÈ­Çϸé ÇÏÁö ¾ÊÀº °æ¿ì¿¡ ºñÇØ ÃÊ´ç ¿äûÀÌ 3% ¹Ì¸¸
715       ÁÙ¾îµé¾ú´Ù. ±×·¯³ª Á÷·ÄÈ­¸¦ ÇÏÁö ¾ÊÀº °æ¿ì ¿äû´ç 100ms
716       Áö¿¬ÀÌ ¹ß»ýÇß´Ù. ÀÌ Áö¿¬Àº ¾Æ¸¶µµ LAN¿¡¼­ ¹ß»ýÇϴ ±ä
717       ¿¬°á¼±¶§¹®ÀÏ °ÍÀÌ´Ù. ¼ÒÄÏÀÌ ÇÑ°³ÀΠ°æ¿ì Á÷·ÄÈ­¸¦ »ç¿ëÇÏÁö
718       ¾ÊÀ¸·Á¸é <code>SINGLE_LISTEN_UNSERIALIZED_ACCEPT</code>¸¦
719       Á¤ÀÇÇÑ´Ù.</p>
720
721     
722
723     <h3>Close Áö¿¬(lingering)</h3>
724
725       
726
727       <p><a href="http://www.ics.uci.edu/pub/ietf/http/draft-ietf-http-connection-00.txt">
728       draft-ietf-http-connection-00.txt</a> 8Àý¿¡¼­ ¼³¸íÇϵíÀÌ
729       <strong>¾ÈÁ¤ÀûÀÎ</strong> À¥¼­¹ö°¡ µÇ·Á¸é, Åë½ÅÀÇ ¾ç ¹æÇâÀ»
730       µ¶¸³ÀûÀ¸·Î ´ÝÀ» ¼ö ÀÖ¾î¾ß ÇÑ´Ù (TCP ¿¬°áÀº ½Ö¹æÇâÀÌ°í,
731       ¹æÇâÀº ¼­·Î µ¶¸³ÀûÀÌ´Ù). ÀÌÁ¡À» ´Ù¸¥ ¼­¹ö¿¡¼­´Â ÀÚÁÖ
732       °£°úÇÏÁö¸¸, ¾ÆÆÄÄ¡´Â 1.2ºÎÅÍ Á¤È®È÷ ±¸ÇöÇØ¿Ô´Ù.</p>
733
734       <p>ÀÌ ±â´ÉÀ» ºÎÁÖÀÇÇÏ°Ô ¾ÆÆÄÄ¡¿¡ Ãß°¡ÇßÀ»¶§ ¿©·¯ À¯´Ð½º
735       ¹öÀü¿¡¼­ ¸¹Àº ¹®Á¦°¡ ¹ß»ýÇß´Ù. TCP ±Ô¾àÀº
736       <code>FIN_WAIT_2</code>¿¡ Å¸ÀӾƿôÀÌ ÀÖ´Ù°í Á¤ÇÏÁö ¾Ê¾ÒÁö¸¸,
737       ±ÝÁöÇÏÁöµµ ¾Ê¾Ò´Ù. Å¸ÀӾƿôÀÌ ¾ø´Â ½Ã½ºÅÛ¿¡¼­ ¾ÆÆÄÄ¡ 1.2´Â
738       ¸¹Àº ¼ÒÄÏÀ» ¿µ¿øÈ÷ <code>FIN_WAIT_2</code> »óÅ·Π¸¸µé¾ú´Ù.
739       ¸¹Àº °æ¿ì ÀÌ ¹®Á¦´Â Á¦Àۻ簡 Á¦°øÇϴ ÃֽŠTCP/IP ÆÐÄ¡¸¦
740       Àû¿ëÇÏ¿© ÇØ°áÇÒ ¼ö ÀÖ´Ù. ±×·¯³ª Á¦Àۻ簡 ÆÐÄ¡¸¦ ¹ßÇ¥ÇÏÁö
741       ¾Ê´Â °æ¿ì°¡ (<em>Áï,</em> SunOS4 -- ¼Ò½º ¶óÀ̼±½º°¡ ÀÖ´Â
742       »ç¶÷Àº Á÷Á¢ ÆÐÄ¡ÇÒ ¼ö ÀÖÁö¸¸) Àֱ⶧¹®¿¡ ÀÌ ±â´ÉÀ» »ç¿ëÇÏÁö
743       ¾Ê±â·Î °áÁ¤Çß´Ù.</p>
744
745       <p>¹æ¹ýÀº µÎ°¡Áö´Ù. Çϳª´Â ¼ÒÄÏ ¿É¼Ç <code>SO_LINGER</code>¸¦
746       »ç¿ëÇϴ ¹æ¹ýÀÌ´Ù. ±×·¯³ª ºÒÇàÈ÷µµ ´ëºÎºÐÀÇ TCP/IP ½ºÅÃÀº
747       ÀÌ ¿É¼ÇÀ» ¿Ã¹Ù·Î ±¸ÇöÇÏÁö ¾Ê¾Ò´Ù. ¿Ã¹Ù·Î ±¸ÇöÇÑ ½ºÅÿ¡¼­
748       Á¶Â÷µµ (<em>Áï,</em> ¸®´ª½º 2.0.31) ÀÌ ¹æ¹ýÀº ´ÙÀ½ ¹æ¹ýº¸´Ù
749       ´õ cpu¸¦ Àâ¾Æ¸Ô´Â´Ù.</p>
750
751       <p>¾ÆÆÄÄ¡´Â º¸Åë (<code>http_main.c</code>¿¡ ÀÖ´Â)
752       <code>lingering_close</code>¶ó´Â ÇÔ¼ö¸¦ »ç¿ëÇÑ´Ù. ÀÌ ÇÔ¼ö´Â
753       ´ëÃæ ´ÙÀ½°ú °°´Ù:</p>
754
755       <div class="example"><p><code>
756         void lingering_close (int s)<br />
757         {<br />
758         <span class="indent">
759           char junk_buffer[2048];<br />
760           <br />
761           /* shutdown the sending side */<br />
762           shutdown (s, 1);<br />
763           <br />
764           signal (SIGALRM, lingering_death);<br />
765           alarm (30);<br />
766           <br />
767           for (;;) {<br />
768           <span class="indent">
769             select (s for reading, 2 second timeout);<br />
770             if (error) break;<br />
771             if (s is ready for reading) {<br />
772             <span class="indent">
773               if (read (s, junk_buffer, sizeof (junk_buffer)) &lt;= 0) {<br />
774               <span class="indent">
775                 break;<br />
776               </span>
777               }<br />
778               /* just toss away whatever is here */<br />
779             </span>
780             }<br />
781           </span>
782           }<br />
783           <br />
784           close (s);<br />
785         </span>
786         }
787       </code></p></div>
788
789       <p>ÀÌ ÄÚµå´Â ¿¬°áÀ» ´ÝÀ»¶§ ´õ CPU¸¦ »ç¿ëÇÏÁö¸¸, ¾ÈÁ¤ÀûÀÎ
790       ±¸ÇöÀ» À§ÇØ ÇÊ¿äÇÏ´Ù. HTTP/1.1ÀÌ ´õ ³Î¸® ÆÛÁö°í ¸ðµç ¿¬°áÀ»
791       À¯ÁöÇÑ´Ù¸é(persistent), ¿¬°áÀ» ¹Þ´Â ºñ¿ëÀº ¿©·¯ ¿äûÀ»
792       Ã³¸®Çϸ鼭 »ó¼âµÉ °ÍÀÌ´Ù. À§ÇèÇÏ°Ôµµ
793       <code>NO_LINGCLOSE</code>¸¦ Á¤ÀÇÇÏ¿© ÀÌ ±â´ÉÀ» »ç¿ëÇÏÁö
794       ¾ÊÀ» ¼ö ÀÖÁö¸¸, Àý´ë·Î ±ÇÇÏÁö ¾Ê´Â´Ù. Æ¯È÷ HTTP/1.1
795       ÆÄÀÌÇÁ¶óÀΠ<span class="transnote">(<em>¿ªÁÖ;</em> ¿¬°áÀ¯Áö »óÅ¿¡¼­ ÀÀ´äÀ» ±â´Ù¸®Áö
796       ¾Ê°í ¿©·¯ ¿äûÀ» º¸³»´Â ±â¼ú)</span> ¿¬°áÀ¯Áö¿¡´Â
797       <code>lingering_close</code>°¡ ÇʼöÀûÀÌ´Ù (±×¸®°í <a href="http://www.w3.org/Protocols/HTTP/Performance/Pipeline.html">
798       ÆÄÀÌÇÁ¶óÀΠ¿¬°áÀÌ ´õ ºü¸£±â¶§¹®¿¡</a> »ç¿ëÇϱ根ٶö °ÍÀÌ´Ù).</p>
799
800     
801
802     <h3>Scoreboard ÆÄÀÏ</h3>
803
804       
805
806       <p>¾ÆÆÄÄ¡ÀÇ ºÎ¸ð¿Í ÀÚ½ÄÀº scoreboard¶ó´Â °ÍÀ» ÅëÇØ ¼­·Î
807       Åë½ÅÇÑ´Ù. ÀÌ»óÀûÀ¸·Î´Â scoreboard¸¦ °øÀ¯¸Þ¸ð¸®·Î ±¸ÇöÇؾß
808       ÇÑ´Ù. ¿ì¸® °³¹ßÀÚ°¡ Çش砿üÁ¦¿¡ Á¢±ÙÇÒ ¼ö Àְųª »ó¼¼ÇÑ
809       Æ÷Æà°á°ú¸¦ ¹ÞÀº °æ¿ì º¸Åë °øÀ¯¸Þ¸ð¸®¸¦ »ç¿ëÇÏ¿© ±¸ÇöÇÑ´Ù.
810       ³ª¸ÓÁö´Â µð½ºÅ©¿¡ Àִ ÆÄÀÏÀ» »ç¿ëÇÏ¿© ±¸ÇöÇÑ´Ù. µð½ºÅ©¿¡
811       Àִ ÆÄÀÏÀº ´À¸®°í ½Å·Úµµ°¡ ¶³¾îÁø´Ù (±â´Éµµ ´õ Àû´Ù).
812       <code>src/main/conf.h</code> ÆÄÀÏ¿¡¼­ »ç¿ëÇϴ ¾ÆÅ°ÅØÃĸ¦
813       Ã£¾Æ¼­ <code>USE_MMAP_SCOREBOARD</code> È¤Àº
814       <code>USE_SHMGET_SCOREBOARD</code>ÀÎÁö È®ÀÎÇÑ´Ù. µÑÁß
815       Çϳª¸¦ (°¢°¢ ÇÔ²² »ç¿ëÇÒ <code>HAVE_MMAP</code>À̳ª
816       <code>HAVE_SHMGET</code>µµ °°ÀÌ) Á¤ÀÇÇϸ頰øÀ¯¸Þ¸ð¸® Äڵ带
817       »ç¿ëÇÑ´Ù. ½Ã½ºÅÛÀÌ ´Ù¸¥ Á¾·ùÀÇ °øÀ¯¸Þ¸ð¸®¸¦ »ç¿ëÇÑ´Ù¸é
818       <code>src/main/http_main.c</code> ÆÄÀÏÀ» ¼öÁ¤ÇÏ¿© ¾ÆÆÄÄ¡¿¡¼­
819       °øÀ¯¸Þ¸ð¸®¸¦ »ç¿ëÇÒ ¼ö ÀÖµµ·Ï ÈÅ(hook)À» Ãß°¡Ç϶ó. (¶ÇÇÑ
820       ÆÐÄ¡¸¦ ¿ì¸®¿¡°Ô º¸³»Áֱ根ٶõ´Ù.)</p>
821
822       <div class="note">¿ª»çÀû ¼³¸í: ¾ÆÆÄÄ¡ÀÇ ¸®´ª½º ¹öÀüÀº ¾ÆÆÄÄ¡ 1.2 ¹öÀüºÎÅÍ
823       °øÀ¯¸Þ¸ð¸®¸¦ »ç¿ëÇϱ⠽ÃÀÛÇß´Ù. ¸®´ª½º¿¡¼­ Ãʱ⠾ÆÆÄÄ¡
824       ¹öÀüÀÌ ´À¸®°í ½Å·Úµµ°¡ ¶³¾îÁ³±â ¶§¹®ÀÌ´Ù.</div>
825
826     
827
828     <h3>DYNAMIC_MODULE_LIMIT</h3>
829
830       
831
832       <p>¸ðµâÀ» µ¿ÀûÀ¸·Î ÀоîµéÀÌÁö ¾Ê´Â´Ù¸é (°¡´ÉÇÑ Á¶±ÝÀ̶óµµ
833       ¼º´ÉÀ» ³ôÀ̱âÀ§ÇØ ÀÌ ±ÛÀ» Àд´ٸ頾Ƹ¶µµ ¸ðµâÀ» µ¿ÀûÀ¸·Î
834       ÀоîµéÀÌÁö ¾ÊÀ» °ÍÀÌ´Ù), ¼­¹ö¸¦ ÄÄÆÄÀÏÇÒ¶§
835       <code>-DDYNAMIC_MODULE_LIMIT=0</code>À» Ãß°¡ÇÑ´Ù. ±×·¯¸é
836       ¸ðµâÀ» µ¿ÀûÀ¸·Î ÀоîµéÀ̱âÀ§ÇØ ÇÒ´çÇϴ ¸Þ¸ð¸®¸¦ Àý¾àÇÑ´Ù.</p>
837
838     
839
840   </div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
841 <div class="section">
842 <h2><a name="trace" id="trace">ºÎ·Ï: ½Ã½ºÅÛÈ£Ãâ ±â·ÏÀ» ÀÚ¼¼È÷ ºÐ¼®Çϱâ</a></h2>
843
844     
845
846     <p>´ÙÀ½Àº Solaris 8¿¡¼­ worker MPMÀ» »ç¿ëÇÑ ¾ÆÆÄÄ¡ 2.0.38ÀÇ
847     ½Ã½ºÅÛÈ£Ãâ ±â·Ï(trace)ÀÌ´Ù. ¾Æ·¡ ¸í·É¾î¸¦ »ç¿ëÇÏ¿© ±â·ÏÀ»
848     ¾ò¾ú´Ù:</p>
849
850     <div class="example"><p><code>
851       truss -l -p <var>httpd_child_pid</var>.
852     </code></p></div>
853
854     <p><code>-l</code> ¿É¼ÇÀ» »ç¿ëÇϸé truss´Â ½Ã½ºÅÛÈ£ÃâÀ»
855     Çϴ LWP (lightweight process, °æ·®±Þ ÇÁ·Î¼¼½º--SolarisÀÇ
856     Ä¿³Î¼öÁØ ¾²·¹µå) ID¸¦ °°ÀÌ ±â·ÏÇÑ´Ù.</p>
857
858     <p>´Ù¸¥ ½Ã½ºÅÛ¿¡´Â <code>strace</code>, <code>ktrace</code>,
859     <code>par</code> °°Àº ½Ã½ºÅÛÈ£Ãâ ÃßÀû µµ±¸°¡ ÀÖ´Ù. °á°ú´Â
860     ºñ½ÁÇÏ´Ù.</p>
861
862     <p>Ŭ¶óÀ̾ðÆ®´Â À¥¼­¹ö¿¡°Ô Å©±â°¡ 10KBÀΠÁ¤Àû ÆÄÀÏÀ» ¿äûÇÑ´Ù.
863     Á¤ÀûÀΠÆÄÀÏÀ» ¿äûÇÏÁö ¾Ê°Å³ª ³»¿ëÇù»óÇϴ ¿äûÀ» ÇÑ °æ¿ì
864     ±â·ÏÀÌ ¸Å¿ì ´Ù¸£´Ù (¶§·Î´Â ¸Å¿ì ¾Ë¾Æº¸±â Èûµé´Ù).</p>
865
866     <div class="example"><pre>/67:    accept(3, 0x00200BEC, 0x00200C0C, 1) (sleeping...)
867 /67:    accept(3, 0x00200BEC, 0x00200C0C, 1)            = 9</pre></div>
868
869     <p>À§¿¡¼­ ¿¬°á´ë±â(listener) ¾²·¹µå°¡ LWP #67¿¡¼­ ½ÇÇàµÊÀ»
870     ¾Ë ¼ö ÀÖ´Ù.</p>
871
872     <div class="note"><code>accept(2)</code> Á÷·ÄÈ­¸¦ »ç¿ëÇÏÁö ¾ÊÀ½À» ÁÖ¸ñÇ϶ó.
873     ¿©·¯ Æ÷Æ®¸¦ ±â´Ù¸®Áö¾Ê´Â °æ¿ì ÀÌ Ç÷¡ÆûÀÇ worker MPMÀº
874     ±âº»ÀûÀ¸·Î Á÷·ÄÈ­ÇÏÁö ¾ÊÀº accept¸¦ »ç¿ëÇÑ´Ù.</div>
875
876     <div class="example"><pre>/65:    lwp_park(0x00000000, 0)                         = 0
877 /67:    lwp_unpark(65, 1)                               = 0</pre></div>
878
879     <p>¿¬°áÀº ¹Þ¾ÆµéÀÌ°í(accept) ¿¬°á´ë±â ¾²·¹µå´Â
880     worker ¾²·¹µå¸¦ ±ú¿ö¼­ ¿äûÀ» Ã³¸®ÇÏ°Ô ÇÑ´Ù. ¾Æ·¡ ±â·Ï¿¡¼­
881     ¿äûÀ» Ã³¸®Çϴ worker ¾²·¹µå°¡ LWP #65ÀÓÀ» ¾Ë ¼ö ÀÖ´Ù.</p>
882
883     <div class="example"><pre>/65:    getsockname(9, 0x00200BA4, 0x00200BC4, 1)       = 0</pre></div>
884
885     <p>°¡»óÈ£½ºÆ®¸¦ ±¸ÇöÇϱâÀ§ÇØ ¾ÆÆÄÄ¡´Â ¿¬°áÀ» ¹Þ¾ÆµéÀÎ
886     Áö¿ª(local) ¼ÒÄÏ ÁÖ¼Ò¸¦ ¾Ë¾Æ¾ß ÇÑ´Ù. (°¡»óÈ£½ºÆ®¸¦ »ç¿ëÇÏÁö
887     ¾Ê°Å³ª <code class="directive"><a href="../mod/mpm_common.html#listen">Listen</a></code>
888     Áö½Ã¾î¿¡ ¿ÍÀϵåÄ«µå ÁÖ¼Ò¸¦ »ç¿ëÇÏÁö ¾ÊÀº °æ¿ì µî) ¸¹Àº °æ¿ì
889     À̠ȣÃâÀ» ¾ø¾Ù ¼ö ÀÖ´Ù. ±×·¯³ª ¾ÆÁ÷ ÀÌ·± ÃÖÀûÈ­ ÀÛ¾÷ÀÌ
890     ¾ÈµÇÀÖ´Ù. </p>
891
892     <div class="example"><pre>/65:    brk(0x002170E8)                                 = 0
893 /65:    brk(0x002190E8)                                 = 0</pre></div>
894
895     <p><code>brk(2)</code> È£ÃâÀº Èü(heap)¿¡¼­ ¸Þ¸ð¸®¸¦ ÇÒ´çÇÑ´Ù.
896     À¥¼­¹ö´Â ´ëºÎºÐÀÇ ¿äû Ã³¸®½Ã ÀÚü ¸Þ¸ð¸®
897     ÇÒ´çÀÚ(<code>apr_pool</code>°ú <code>apr_bucket_alloc</code>)¸¦
898     »ç¿ëÇϱ⶧¹®¿¡ ½Ã½ºÅÛÈ£Ãâ ±â·Ï¿¡¼­ ÀÌ ½Ã½ºÅÛÈ£ÃâÀ» º¸±â°¡
899     µå¹°´Ù. ÀÌ ±â·Ï¿¡¼­ À¥¼­¹ö´Â ½ÃÀÛÇÏÀÚ¸¶ÀÚ ÀÚü ¸Þ¸ð¸® ÇÒ´çÀÚ°¡
900     »ç¿ëÇÒ ¸Þ¸ð¸®ºí·ÏÀ» ¾ò±âÀ§ÇØ <code>malloc(3)</code>À» È£ÃâÇÑ´Ù.</p>
901
902     <div class="example"><pre>/65:    fcntl(9, F_GETFL, 0x00000000)                   = 2
903 /65:    fstat64(9, 0xFAF7B818)                          = 0
904 /65:    getsockopt(9, 65535, 8192, 0xFAF7B918, 0xFAF7B910, 2190656) = 0
905 /65:    fstat64(9, 0xFAF7B818)                          = 0
906 /65:    getsockopt(9, 65535, 8192, 0xFAF7B918, 0xFAF7B914, 2190656) = 0
907 /65:    setsockopt(9, 65535, 8192, 0xFAF7B918, 4, 2190656) = 0
908 /65:    fcntl(9, F_SETFL, 0x00000082)                   = 0</pre></div>
909
910     <p>´ÙÀ½ worker ¾²·¹µå´Â Å¬¶óÀ̾ðÆ®ÀÇ ¿¬°á(ÆÄÀϱâ¼úÀÚ 9)À»
911     ´ë±â¾ÈÇÔ(non-blocking) »óÅ·Π¹Ù²Û´Ù. <code>setsockopt(2)</code>¿Í
912     <code>getsockopt(2)</code> È£ÃâÀº SolarisÀÇ libc°¡ ¼ÒÄÏ¿¡
913     ´ëÇÑ <code>fcntl(2)</code>À» ¾î¶»°Ô Ã³¸®ÇÏ´ÂÁö º¸¿©ÁØ´Ù.</p>
914
915     <div class="example"><pre>/65:    read(9, " G E T   / 1 0 k . h t m".., 8000)     = 97</pre></div>
916
917     <p>worker ¾²·¹µå´Â Å¬¶óÀ̾ðÆ®·Î ºÎÅÍ ¿äûÀ» Àд´Ù.</p>
918
919     <div class="example"><pre>/65:    stat("/var/httpd/apache/httpd-8999/htdocs/10k.html", 0xFAF7B978) = 0
920 /65:    open("/var/httpd/apache/httpd-8999/htdocs/10k.html", O_RDONLY) = 10</pre></div>
921
922     <p>À¥¼­¹ö ¼³Á¤Àº <code>Options FollowSymLinks</code>¿Í
923     <code>AllowOverride None</code>ÀÌ´Ù. ±×·¡¼­ ¿äûÇÑ ÆÄÀÏ°æ·ÎÀÇ
924     °¢ µð·ºÅ丮¿¡ ´ëÇØ <code>lstat(2)</code>Çϰųª
925     <code>.htaccess</code> ÆÄÀÏÀ» °Ë»çÇÒ ÇÊ¿ä°¡ ¾ø´Ù. ÆÄÀÏÀ»
926     °Ë»çÇϱâÀ§ÇØ, 1) ÆÄÀÏÀÌ ÀÖ´ÂÁö, 2) µð·ºÅ丮°¡ ¾Æ´Ñ ÀϹÝÆÄÀÏÀÎÁö,
927     <code>stat(2)</code> È£Ã⸸ Çϸ頵ȴÙ.</p>
928
929     <div class="example"><pre>/65:    sendfilev(0, 9, 0x00200F90, 2, 0xFAF7B53C)      = 10269</pre></div>
930
931     <p>ÀÌ °æ¿ì À¥¼­¹ö´Â ÇѹøÀÇ <code>sendfilev(2)</code> ½Ã½ºÅÛÈ£Ãâ·Î
932     HTTP ÀÀ´äÇì´õ¿Í ¿äûÇÑ ÆÄÀÏÀ» Àü¼ÛÇÒ ¼ö ÀÖ´Ù. Sendfile Áö¿ø¿©ºÎ´Â
933     ¿î¿µÃ¼Á¦¸¶´Ù ´Ù¸£´Ù. ´Ù¸¥ ½Ã½ºÅÛÀ̶ó¸é <code>sendfile(2)</code>À»
934     È£ÃâÇϱâ Àü¿¡ Çì´õ¸¦ º¸³»±âÀ§ÇØ <code>write(2)</code>³ª
935     <code>writev(2)</code> È£ÃâÀ» ÇÑ´Ù.</p>
936
937     <div class="example"><pre>/65:    write(4, " 1 2 7 . 0 . 0 . 1   -  ".., 78)      = 78</pre></div>
938
939     <p><code>write(2)</code> È£ÃâÀº Á¢±Ù·Î±×(access log)¿¡ ¿äûÀ»
940     ±â·ÏÇÑ´Ù. ÀÌ ±â·Ï¿¡ <code>time(2)</code> È£ÃâÀÌ ¾øÀ½À» ÁÖ¸ñÇ϶ó.
941     ¾ÆÆÄÄ¡ 1.3°ú ´Þ¸® ¾ÆÆÄÄ¡ 2.0Àº ½Ã°£À» ¾Ë±âÀ§ÇØ
942     <code>gettimeofday(3)</code>¸¦ »ç¿ëÇÑ´Ù.
943     <code>gettimeofday</code>¸¦ ÃÖÀûÈ­ÇÑ ¸®´ª½º¿Í Solaris °°Àº
944     ¸î¸î ¿î¿µÃ¼Á¦¿¡¼­´Â ÀϹÝÀûÀΠ½Ã½ºÅÛÈ£Ã⠺δãÀÌ ¾ø´Ù.</p>
945
946     <div class="example"><pre>/65:    shutdown(9, 1, 1)                               = 0
947 /65:    poll(0xFAF7B980, 1, 2000)                       = 1
948 /65:    read(9, 0xFAF7BC20, 512)                        = 0
949 /65:    close(9)                                        = 0</pre></div>
950
951     <p>worker ¾²·¹µå´Â ¿¬°áÀ» Áö¿¬´Ý±â(lingering close)ÇÑ´Ù.</p>
952
953     <div class="example"><pre>/65:    close(10)                                       = 0
954 /65:    lwp_park(0x00000000, 0)         (sleeping...)</pre></div>
955
956     <p>¸¶Áö¸·À¸·Î worker ¾²·¹µå´Â ¹æ±Ý Àü¼ÛÇÑ ÆÄÀÏÀ» ´Ý°í,
957     ¿¬°á´ë±â(listener) ¾²·¹µå°¡ ´Ù¸¥ ¿¬°áÀ» ÇÒ´çÇÒ ¶§±îÁö
958     Á¤ÁöÇÑ´Ù.</p>
959
960     <div class="example"><pre>/67:    accept(3, 0x001FEB74, 0x001FEB94, 1) (sleeping...)</pre></div>
961
962     <p>±×µ¿¾È ¿¬°á´ë±â ¾²·¹µå´Â ¿¬°áÀ» (¸ðµç worker°¡ ÀÛ¾÷ÁßÀ̸é
963     ¿¬°á´ë±â ¾²·¹µå¸¦ ¸ØÃߴ worker MPMÀÇ È帧Á¦¾î ±â´É¿¡ µû¶ó)
964     worker ¾²·¹µå¿¡ ÇÒ´çÇÏÀÚ¸¶ÀÚ ´Ù¸¥ ¿¬°áÀ» ¹Þ¾ÆµéÀÏ ¼ö ÀÖ´Ù.
965     ÀÌ ±â·Ï¿¡´Â ³ª¿ÀÁö ¾ÊÁö¸¸, worker ¾²·¹µå°¡ ¹æ±Ý ¹ÞÀº ¿¬°áÀ»
966     Ã³¸®Çϴ µ¿¾È ´ÙÀ½ <code>accept(2)</code>°¡ (¿äûÀÌ ¸Å¿ì
967     ¸¹Àº °æ¿ì Ç×»ó) ÀϾ ¼ö ÀÖ´Ù.</p>
968
969   </div></div>
970 <div class="bottomlang">
971 <p><span>°¡´ÉÇÑ ¾ð¾î: </span><a href="../en/misc/perf-tuning.html" hreflang="en" rel="alternate" title="English">&nbsp;en&nbsp;</a> |
972 <a href="../ko/misc/perf-tuning.html" title="Korean">&nbsp;ko&nbsp;</a></p>
973 </div><div id="footer">
974 <p class="apache">Copyright 2007 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>
975 <p class="menu"><a href="../mod/">¸ðµâ</a> | <a href="../mod/directives.html">Áö½Ã¾îµé</a> | <a href="../faq/">FAQ</a> | <a href="../glossary.html">¿ë¾î</a> | <a href="../sitemap.html">»çÀÌÆ®¸Ê</a></p></div>
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