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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 06:33:50 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 06:33:50 +0000 |
commit | fe39ffb8b90ae4e002ed73fe98617cd590abb467 (patch) | |
tree | b80e5956907d8aeaaffe4e4f0c068c0e6157ce8b /docs/manual/misc/perf-tuning.html.ko.euc-kr | |
parent | Initial commit. (diff) | |
download | apache2-fe39ffb8b90ae4e002ed73fe98617cd590abb467.tar.xz apache2-fe39ffb8b90ae4e002ed73fe98617cd590abb467.zip |
Adding upstream version 2.4.56.upstream/2.4.56upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | docs/manual/misc/perf-tuning.html.ko.euc-kr | 1006 |
1 files changed, 1006 insertions, 0 deletions
diff --git a/docs/manual/misc/perf-tuning.html.ko.euc-kr b/docs/manual/misc/perf-tuning.html.ko.euc-kr new file mode 100644 index 0000000..bf88b86 --- /dev/null +++ b/docs/manual/misc/perf-tuning.html.ko.euc-kr @@ -0,0 +1,1006 @@ +<?xml version="1.0" encoding="EUC-KR"?> +<!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="ko" xml:lang="ko"><head> +<meta content="text/html; charset=EUC-KR" http-equiv="Content-Type" /> +<!-- + XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX + This file is generated from xml source: DO NOT EDIT + XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX + --> +<title>¾ÆÆÄÄ¡ ¼º´ÉÇâ»ó - Apache HTTP Server Version 2.4</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 rel="stylesheet" type="text/css" href="../style/css/prettify.css" /> +<script src="../style/scripts/prettify.min.js" type="text/javascript"> +</script> + +<link href="../images/favicon.ico" rel="shortcut icon" /></head> +<body id="manual-page"><div id="page-header"> +<p class="menu"><a href="../mod/">¸ðµâ</a> | <a href="../mod/directives.html">Áö½Ã¾îµé</a> | <a href="http://wiki.apache.org/httpd/FAQ">FAQ</a> | <a href="../glossary.html">¿ë¾î</a> | <a href="../sitemap.html">»çÀÌÆ®¸Ê</a></p> +<p class="apache">Apache HTTP Server Version 2.4</p> +<img alt="" src="../images/feather.png" /></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 2.4</a> > <a href="./">Miscellaneous Documentation</a></div><div id="page-content"><div id="preamble"><h1>¾ÆÆÄÄ¡ ¼º´ÉÇâ»ó</h1> +<div class="toplang"> +<p><span>°¡´ÉÇÑ ¾ð¾î: </span><a href="../en/misc/perf-tuning.html" hreflang="en" rel="alternate" title="English"> en </a> | +<a href="../fr/misc/perf-tuning.html" hreflang="fr" rel="alternate" title="Français"> fr </a> | +<a href="../ko/misc/perf-tuning.html" title="Korean"> ko </a> | +<a href="../tr/misc/perf-tuning.html" hreflang="tr" rel="alternate" title="Türkçe"> tr </a></p> +</div> +<div class="outofdate">ÀÌ ¹®¼´Â ÃÖ½ÅÆÇ ¹ø¿ªÀÌ ¾Æ´Õ´Ï´Ù. + ÃÖ±Ù¿¡ º¯°æµÈ ³»¿ëÀº ¿µ¾î ¹®¼¸¦ Âü°íÇϼ¼¿ä.</div> + + + <p>¾ÆÆÄÄ¡ 2.0Àº ±â´É°ú Æ÷Æð¡´É¼º°ú ¼º´ÉÀÇ ±ÕÇüÀÌ ¸Âµµ·Ï + ¼³°èÇÑ ¹ü¿ë À¥¼¹öÀÌ´Ù. º¥Ä¡¸¶Å© ±â·ÏÀ» ¼¼¿ì±âÀ§ÇØ ¼³°èÇÏÁö + ¾Ê¾ÒÁö¸¸ ¾ÆÆÄÄ¡ 2.0Àº ½ÇÁ¦ ¸¹Àº °æ¿ì ³ôÀº ¼º´ÉÀ» ³½´Ù.</p> + + <p>¾ÆÆÄÄ¡ 1.3°ú ºñ±³Çؼ 2.0 ¹öÀüÀº 󸮷®°ú È®À强(scalability)À» + ³ôÀ̱âÀ§ÇØ ¸¹Àº ÃÖÀûȸ¦ Çß´Ù. ±âº»°ªÀ¸·Î ´ëºÎºÐ ÃÖÀûÈÇÑ + °ªÀ» »ç¿ëÇÑ´Ù. ±×·¯³ª ÄÄÆÄÀϽà ȤÀº ½ÇÇà½Ã ¼³Á¤ÀÌ ¼º´É¿¡ + Å« ¿µÇâÀ» ÁÙ ¼ö ÀÖ´Ù. ÀÌ ¹®¼´Â ¾ÆÆÄÄ¡ 2.0ÀÇ ¼º´ÉÀ» Çâ»óÇϱâÀ§ÇØ + ¼¹ö °ü¸®ÀÚ°¡ ¼³Á¤ÇÒ ¼ö ÀÖ´Â ¿É¼ÇÀ» ¼³¸íÇÑ´Ù. ¾î¶² ¼³Á¤ + ¿É¼ÇÀº À¥¼¹ö°¡ Çϵå¿þ¾î¿Í ¿î¿µÃ¼Á¦ÀÇ ±â´ÉÀ» ´õ Àß È°¿ëÇϵµ·Ï + ÇÏ´Â ¹Ý¸é, ¾î¶² ¿É¼ÇÀº ¼Óµµ¸¦ À§ÇØ ±â´ÉÀ» Èñ»ýÇÑ´Ù.</p> + + </div> +<div id="quickview"><a href="https://www.apache.org/foundation/contributing.html" class="badge"><img src="https://www.apache.org/images/SupportApache-small.png" alt="Support Apache!" /></a><ul id="toc"><li><img alt="" src="../images/down.gif" /> <a href="#hardware">Çϵå¿þ¾î¿Í ¿î¿µÃ¼Á¦¿¡ ´ëÇؼ</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#runtime">½ÇÇà½Ã ¼³Á¤¿¡ ´ëÇؼ</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#compiletime">ÄÄÆÄÀϽà ¼³Á¤¿¡ ´ëÇؼ</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#trace">ºÎ·Ï: ½Ã½ºÅÛÈ£Ãâ ±â·ÏÀ» ÀÚ¼¼È÷ ºÐ¼®Çϱâ</a></li> +</ul><h3>Âü°í</h3><ul class="seealso"><li><a href="#comments_section">Comments</a></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="hardware" id="hardware">Çϵå¿þ¾î¿Í ¿î¿µÃ¼Á¦¿¡ ´ëÇؼ</a></h2> + + + + <p>À¥¼¹ö ¼º´É¿¡ °¡Àå Å« ¿µÇâÀ» ÁÖ´Â °ÍÀº ¸Þ¸ð¸®´Ù. ½º¿ÒÀº + ¿äû´ç Áö¿¬½Ã°£À» »ç¿ëÀÚ°¡ "ÃæºÐÈ÷ ºü¸£´Ù°í" »ý°¢ÇÏÁö ¸øÇÏ°Ô + ´Ã¸®±â¶§¹®¿¡ À¥¼¹ö´Â ½º¿ÒÀ» ÇÏ¸é ¾ÈµÈ´Ù. ´À·ÁÁö¸é »ç¿ëÀÚ´Â + 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¿© + À¥¼¹ö°¡ ½º¿ÒÀ» ÇÒ Á¤µµ·Î ¸¹Àº ÀÚ½ÄÀ» ¸¸µéÁö¾Êµµ·Ï ÇØ¾ß + ÇÑ´Ù. ¹æ¹ýÀº °£´ÜÇÏ´Ù: <code>top</code>°ú °°Àº µµ±¸¿¡¼ + ÇÁ·Î¼¼½º ¸ñ·ÏÀ» º¸°í ¾ÆÆÄÄ¡ ÇÁ·Î¼¼½ºÀÇ Æò±Õ ¸Þ¸ð¸® »ç¿ë·®À» + ¾Ë¾Æ³½ÈÄ, Àüü »ç¿ë°¡´ÉÇÑ ¸Þ¸ð¸®¿¡¼ ´Ù¸¥ ÇÁ·Î¼¼½ºµéÀÌ »ç¿ëÇÒ + °ø°£À» »« °ª¿¡¼ ³ª´«´Ù.</p> + + <p>³ª¸ÓÁö´Â Æò¹üÇÏ´Ù: ÃæºÐÈ÷ ºü¸¥ CPU, ÃæºÐÈ÷ ºü¸¥ ³×Æ®¿÷Ä«µå, + ÃæºÐÈ÷ ºü¸¥ µð½ºÅ©, ¿©±â¼ "ÃæºÐÈ÷ ºü¸¥"Àº ½ÇÇèÀ» Çؼ °áÁ¤ÇØ¾ß + ÇÑ´Ù.</p> + + <p>¿î¿µÃ¼Á¦´Â º¸Åë °¢ÀÚ ¾Ë¾Æ¼ ¼±ÅÃÇÒ ÀÏÀÌ´Ù. ±×·¯³ª ÀϹÝÀûÀ¸·Î + À¯¿ëÇÏ´Ù°í ÆǸíµÈ ¸î°¡Áö ÁöħÀÌ ÀÖ´Ù:</p> + + <ul> + <li> + <p>¼±ÅÃÇÑ ¿î¿µÃ¼Á¦ÀÇ ÃֽŠ¾ÈÁ¤ ¹öÀü°ú ÆÐÄ¡¸¦ ½ÇÇàÇÑ´Ù. + ¸¹Àº ¿î¿µÃ¼Á¦ Á¦ÀÛ»ç´Â ÃÖ±Ù TCP ½ºÅðú ¾²·¹µå ¶óÀ̺귯¸®¿¡ + ¸¹Àº ¼ÓµµÇâ»óÀ» Çß´Ù.</p> + </li> + + <li> + <p>¿î¿µÃ¼Á¦°¡ <code>sendfile(2)</code> ½Ã½ºÅÛÈ£ÃâÀ» + Áö¿øÇÑ´Ù¸é, À̸¦ »ç¿ëÇϱâÀ§ÇÑ ¹öÀüÀ̳ª ÆÐÄ¡¸¦ ¼³Ä¡ÇÏ¿´´ÂÁö + È®ÀÎÇÑ´Ù. (¿¹¸¦ µé¾î, ¸®´ª½º¶ó¸é 2.4 ÀÌ»ó ¹öÀüÀ» ¶æÇÑ´Ù. + Solaris 8 Ãʱ⠹öÀüÀº ÆÐÄ¡°¡ ÇÊ¿äÇÏ´Ù.) Áö¿øÇÏ´Â ½Ã½ºÅÛÀ̶ó¸é + ¾ÆÆÄÄ¡ 2´Â <code>sendfile</code>À» »ç¿ëÇÏ¿© CPU¸¦ ´ú + »ç¿ëÇϸç Á¤Àû ÆÄÀÏÀ» ´õ »¡¸® Àü¼ÛÇÒ ¼ö ÀÕ´Ù.</p> + </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="runtime" id="runtime">½ÇÇà½Ã ¼³Á¤¿¡ ´ëÇؼ</a></h2> + + + + <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> + + <h3><a name="dns" id="dns">HostnameLookups¿Í DNS¿¡ ´ëÇØ °í·ÁÇÒ Á¡µé</a></h3> + + + + <p>¾ÆÆÄÄ¡ 1.3 ÀÌÀü¿¡ <code class="directive"><a href="../mod/core.html#hostnamelookups">HostnameLookups</a></code>ÀÇ ±âº»°ªÀº + <code>On</code>ÀÌ¿´´Ù. ¿äûÀ» ¸¶Ä¡±âÀü¿¡ DNS °Ë»öÀÌ ³¡³ª¾ß + ÇϹǷΠ¿äû¸¶´Ù Áö¿¬ÀÌ »ý°å´Ù. ¾ÆÆÄÄ¡ 1.3¿¡¼ ÀÌ ¼³Á¤ÀÇ + ±âº»°ªÀÌ <code>Off</code>·Î º¯°æµÇ¾ú´Ù. ·Î±×ÆÄÀÏÀÇ ÁÖ¼Ò¸¦ + È£½ºÆ®¸íÀ¸·Î º¯È¯ÇÏ·Á¸é ¿©·¯ ·Î±×ó¸® ÇÁ·Î±×·¥Áß ÇϳªÀÎ, + ¾ÆÆÄÄ¡¿¡ Æ÷ÇÔµÈ <a href="../programs/logresolve.html"><code>logresolve</code></a> + ÇÁ·Î±×·¥À» »ç¿ëÇ϶ó.</p> + + <p>·Î±×ó¸® ÀÛ¾÷ÀÌ ¼¹ö ¼º´É¿¡ ¾Ç¿µÇâÀ» ¹ÌÄ¡¹Ç·Î ½ÇÁ¦ + »ç¿ëÇÏ´Â À¥¼¹ö°¡ ¾Æ´Ñ ´Ù¸¥ ÄÄÇ»ÅÍ¿¡¼ ·Î±×ÆÄÀÏÀ» ÈÄó¸®Çϱæ + ¹Ù¶õ´Ù.</p> + + <p><code><code class="directive"><a href="../mod/mod_access.html#allow">Allow</a></code> + from domain</code>À̳ª <code><code class="directive"><a href="../mod/mod_access.html#deny">Deny</a></code> from domain</code> + Áö½Ã¾î¸¦ »ç¿ëÇÑ´Ù¸é (Áï, IP ÁÖ¼Ò°¡ ¾Æ´Ñ È£½ºÆ®¸íÀ̳ª µµ¸ÞÀθíÀ» + »ç¿ëÇÑ´Ù¸é) ºÎµæÀÌ Áߺ¹-¿ª DNS °Ë»öÀ» (¿ª°Ë»öÀ» ÇÑÈÄ ¾ÇÀÇ·Î + º¯°æµÇ¾ú´ÂÁö È®ÀÎÇϱâÀ§ÇØ ´Ù½Ã °Ë»ö) ÇØ¾ß ÇÑ´Ù. ±×·¯¹Ç·Î + ¼º´ÉÀ» ³ôÀ̱âÀ§ÇØ ÀÌ·± Áö½Ã¾î¿¡´Â °¡´ÉÇϸé À̸§´ë½Å IP + ÁÖ¼Ò¸¦ »ç¿ëÇÑ´Ù.</p> + + <p><code><Location /server-status></code> ¼½¼Ç µîÀ¸·Î + Áö½Ã¾îÀÇ Àû¿ë¹üÀ§¸¦ Á¦ÇÑÇÒ ¼ö ÀÖÀ½À» ±â¾ïÇ϶ó. ÀÌ °æ¿ì + Á¶°Ç¿¡ ¸Â´Â ¿äû¿¡¸¸ DNS Á¶È¸¸¦ ÇÑ´Ù. ´ÙÀ½Àº + <code>.html</code>°ú <code>.cgi</code> ÆÄÀϸ¸ DNS °Ë»öÀ» + ÇÏ´Â ¿¹Á¦´Ù:</p> + + <div class="example"><p><code> + HostnameLookups off<br /> + <Files ~ "\.(html|cgi)$"><br /> + <span class="indent"> + HostnameLookups on<br /> + </span> + </Files> + </code></p></div> + + <p>±×·¯³ª CGI¿¡¼ DNS¸íÀÌ ÇÊ¿äÇÒ »ÓÀ̶ó¸é, ÇÊ¿äÇÑ Æ¯Á¤ + CGI¿¡¼¸¸ <code>gethostbyname</code> È£ÃâÀ» Çϵµ·Ï °í·ÁÇغ¼ + ¼ö ÀÖ´Ù.</p> + + + + <h3><a name="symlinks" id="symlinks">FollowSymLinks¿Í SymLinksIfOwnerMatch</a></h3> + + + + <p>URL °ø°£¿¡¼ <code>Options FollowSymLinks</code>¸¦ + »ç¿ëÇÏÁö¾Ê°í <code>Options SymLinksIfOwnerMatch</code>¸¦ + »ç¿ëÇÏ¸é ¾ÆÆÄÄ¡´Â ½Éº¼¸µÅ©¸¦ °Ë»çÇϱâÀ§ÇØ ½Ã½ºÅÛÈ£ÃâÀ» + Çѹø ´õ ÇØ¾ß ÇÑ´Ù. ÆÄÀϸíÀÇ °¢ ºÎºÐ¸¶´Ù Çѹø¾¿ ´õ È£ÃâÀ» + ÇÑ´Ù. ¿¹¸¦ µé¾î, ¼³Á¤ÀÌ ´ÙÀ½°ú °°°í:</p> + + <div class="example"><p><code> + DocumentRoot /www/htdocs<br /> + <Directory /><br /> + <span class="indent"> + Options SymLinksIfOwnerMatch<br /> + </span> + </Directory> + </code></p></div> + + <p><code>/index.html</code> URI¿¡ ´ëÇÑ ¿äûÀÌ ÀÖ´Ù°í °¡Á¤ÇÏÀÚ. + ±×·¯¸é ¾ÆÆÄÄ¡´Â <code>/www</code>, <code>/www/htdocs</code>, + <code>/www/htdocs/index.html</code> °¢°¢¿¡ ´ëÇØ + <code>lstat(2)</code>¸¦ È£ÃâÇÑ´Ù. <code>lstats</code> + °á°ú¸¦ ij½ÌÇÏÁö ¾Ê±â¶§¹®¿¡ ¿äûÀÌ µé¾î¿Ã ¶§¸¶´Ù ¸Å¹ø °°Àº + ÀÛ¾÷À» ÇÑ´Ù. ÁøÂ¥ ½Éº¼¸µÅ© º¸¾È °Ë»ç¸¦ ¿øÇÑ´Ù¸é ´ÙÀ½°ú + °°ÀÌ ÇÒ ¼ö ÀÖ´Ù:</p> + + <div class="example"><p><code> + DocumentRoot /www/htdocs<br /> + <Directory /><br /> + <span class="indent"> + Options FollowSymLinks<br /> + </span> + </Directory><br /> + <br /> + <Directory /www/htdocs><br /> + <span class="indent"> + Options -FollowSymLinks +SymLinksIfOwnerMatch<br /> + </span> + </Directory> + </code></p></div> + + <p>ÀÌ °æ¿ì ÃÖ¼ÒÇÑ <code class="directive"><a href="../mod/core.html#documentroot">DocumentRoot</a></code> °æ·Î´Â °Ë»çÇÏÁö + ¾Ê´Â´Ù. 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ÀϹÝÀûÀ¸·Î worker´Â prefork MPM º¸´Ù ÀûÀº + ¸Þ¸ð¸®¸¦ »ç¿ëÇϹǷΠÅë½Å·®ÀÌ ¸¹Àº ¼¹ö¿¡ ÀûÀýÇÏ´Ù.</li> + + <li><code class="module"><a href="../mod/prefork.html">prefork</a></code> MPMÀº ¾²·¹µå°¡ ÇÑ°³ÀÎ ÀÚ½Ä + ÇÁ·Î¼¼½º¸¦ ¿©·¯°³ »ç¿ëÇÑ´Ù. °¢ ÇÁ·Î¼¼½º´Â Çѹø¿¡ ÇÑ + ¿¬°áÀ» ´ã´çÇÑ´Ù. ¿©·¯ ½Ã½ºÅÛ¿¡¼ preforkÀÇ ¼Óµµ´Â worker¿Í + ºñ½ÁÇÏÁö¸¸, ´õ ¸¹Àº ¸Þ¸ð¸®¸¦ »ç¿ëÇÑ´Ù. ´ÙÀ½°ú °°Àº »óȲ¿¡¼ + ¾²·¹µå¸¦ »ç¿ëÇÏÁö ¾Ê´Â prefork ¹æ½ÄÀÌ worker¿¡ ºñÇØ + ÀÌÁ¡À» °¡Áø´Ù: ¾²·¹µå¿¡ ¾ÈÀüÇÏÁö (thread-safe) ¾ÊÀº + Á¦»ïÀÚ°¡ ¸¸µç ¸ðµâÀ» »ç¿ëÇÒ ¼ö ÀÖ°í, ¾²·¹µå µð¹ö±ë Áö¿øÀÌ + ºó¾àÇÑ Ç÷¡Æû¿¡¼ ½±°Ô µð¹ö±ëÇÒ ¼ö ÀÖ´Ù.</li> + + </ul> + + <p>ÀÌ MPMµé°ú ´Ù¸¥ MPM¿¡ ´ëÇØ ´õ ÀÚ¼¼ÇÑ Á¤º¸´Â MPM <a href="../mpm.html">¹®¼</a>¸¦ Âü°íÇÏ±æ ¹Ù¶õ´Ù.</p> + + + + <h3><a name="modules" id="modules">¸ðµâ</a></h3> + + + + <p>¸Þ¸ð¸® »ç¿ë·®ÀÌ ¼º´É¿¡¼ °¡Àå Áß¿äÇÑ ¿äÀÎÀ̱⶧¹®¿¡ + ½ÇÁ¦·Î »ç¿ëÇÏÁö ¾Ê´Â ¸ðµâÀ» Á¦°ÅÇغ¸ÀÚ. ¸ðµâÀ» <a href="../dso.html">DSO</a>·Î ÄÄÆÄÀÏÇß´Ù¸é °£´ÜÈ÷ ±× + ¸ðµâ¿¡ ´ëÇÑ <code class="directive"><a href="../mod/mod_so.html#loadmodule">LoadModule</a></code> Áö½Ã¾î¸¦ ÁÖ¼®Ã³¸®Çϸé + µÈ´Ù. ±×·¡¼ ¸ðµâÀ» Á¦°ÅÇÏ°í ½ÇÇàÇÏ¿© »çÀÌÆ®°¡ ¸ðµâ¾øÀ̵µ + Á¤»óÀûÀ¸·Î µ¿ÀÛÇÏ´ÂÁö »ìÆ캼 ¼ö ÀÖ´Ù.</p> + + <p>¹Ý´ë·Î ¸ðµâÀÌ ¾ÆÆÄÄ¡ ½ÇÇàÆÄÀÏ¿¡ Á¤ÀûÀ¸·Î ¸µÅ©µÇÀÖ´Ù¸é + ¿øÇÏÁö ¾Ê´Â ¸ðµâÀ» Á¦°ÅÇϱâÀ§ÇØ ¾ÆÆÄÄ¡¸¦ ÀçÄÄÆÄÀÏÇØ¾ß + ÇÑ´Ù.</p> + + <p>¿©±â¼ ´ç¿¬È÷ ¾î¶² ¸ðµâÀ» »ç¿ëÇÏ°í »ç¿ëÇÏÁö ¸»Áö + Àǹ®ÀÌ »ý±ä´Ù. Á¤´äÀº À¥»çÀÌÆ®¸¶´Ù ´Ù¸£´Ù. ±×·¯³ª ¾Æ¸¶µµ + <em>ÃÖ¼ÒÇÑ</em> <code class="module"><a href="../mod/mod_mime.html">mod_mime</a></code>, + <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> + ¸ðµâÀº »ç¿ëÇÒ °ÍÀÌ´Ù. ¹°·Ð À¥»çÀÌÆ®¿¡ ·Î±×ÆÄÀÏÀÌ ÇÊ¿ä¾ø´Ù¸é + <code>mod_log_config</code>´Â ¾ø¾îµµ µÈ´Ù. ±×·¯³ª ÃßõÇÏÁö + ¾Ê´Â´Ù.</p> + + + + <h3>Atomic ¸í·É</h3> + + + + <p><code class="module"><a href="../mod/mod_cache.html">mod_cache</a></code> °°Àº ¸ðµâ°ú ÃÖ±Ù °³¹ßÁßÀÎ + worker MPMÀº APRÀÇ atomic API¸¦ »ç¿ëÇÑ´Ù. ÀÌ API´Â °æ·®±Þ + ¾²·¹µå µ¿±âȸ¦ À§ÇÒ atomic ¸í·ÉÀ» Á¦°øÇÑ´Ù.</p> + + <p>±âº»ÀûÀ¸·Î APRÀº °¢ ¿î¿µÃ¼Á¦/CPU Ç÷¡Æû¿¡¼ °¡Àå È¿À²ÀûÀÎ + ¹æ¹ýÀ» »ç¿ëÇÏ¿© ÀÌ ¸í·ÉÀ» ±¸ÇöÇÑ´Ù. ¿¹¸¦ µé¾î, ¿©·¯ ÃֽŠ+ CPU¿¡´Â Çϵå¿þ¾î·Î atomic compare-and-swap (CAS) ¿¬»êÀ» + ÇÏ´Â ¸í·É¾î°¡ ÀÖ´Ù. ±×·¯³ª ¾î¶² Ç÷¡Æû¿¡¼ APRÀº ÀÌ·± + ¸í·É¾î°¡ ¾ø´Â ¿À·¡µÈ CPU¿Í ȣȯ¼ºÀ» À§ÇØ ´õ ´À¸° mutex±â¹Ý + ±¸ÇöÀ» ±âº»ÀûÀ¸·Î »ç¿ëÇÑ´Ù. ÀÌ·± Ç÷¡Æû¿¡¼ ¾ÆÆÄÄ¡¸¦ + ÄÄÆÄÀÏÇÒ¶§ ¾ÆÆÄÄ¡¸¦ ÃֽŠCPU¿¡¼¸¸ ½ÇÇàÇÒ °èȹÀ̶ó¸é, + ¾ÆÆÄÄ¡¸¦ ±¸¼ºÇÒ¶§ <code>--enable-nonportable-atomics</code> + ¿É¼ÇÀ» »ç¿ëÇÏ¿© ´õ ºü¸¥ atomic ±¸ÇöÀ» ¼±ÅÃÇÒ ¼ö ÀÖ´Ù:</p> + + <div class="example"><p><code> + ./buildconf<br /> + ./configure --with-mpm=worker --enable-nonportable-atomics=yes + </code></p></div> + + <p><code>--enable-nonportable-atomics</code> ¿É¼ÇÀº ´ÙÀ½°ú + °°Àº Ç÷¡Æû¿¡ ¿µÇâÀÌ ÀÖ´Ù:</p> + + <ul> + + <li>SPARC¿¡¼ Solaris<br /> + ±âº»ÀûÀ¸·Î APRÀº Solaris/SPARC¿¡¼ mutex±â¹Ý atomicÀ» + »ç¿ëÇÑ´Ù. ±×·¯³ª ±¸¼ºÇÒ¶§ + <code>--enable-nonportable-atomics</code>¸¦ »ç¿ëÇϸé + APRÀº ºü¸¥ Çϵå¿þ¾î compare-and-swapÀ» À§ÇÑ SPARC + v8plus ¸í·É¾î¸¦ »ç¿ëÇÑ´Ù. ÀÌ ¿É¼ÇÀ» »ç¿ëÇϸé atomic + ¸í·ÉÀÌ ´õ È¿À²ÀûÀÌÁö¸¸ (CPU¸¦ ´ú »ç¿ëÇÏ°í ´õ ³ôÀº + µ¿±âÈ°¡ °¡´ÉÇÏ´Ù), ÄÄÆÄÀÏÇÑ ½ÇÇàÆÄÀÏÀº UltraSPARC + Ĩ¿¡¼¸¸ ½ÇÇàÇÒ ¼ö ÀÖ´Ù. + </li> + + <li>Linux on x86<br /> + ±âº»ÀûÀ¸·Î APRÀº ¸®´ª½º¿¡¼ mutex±â¹Ý atomicÀ» + »ç¿ëÇÑ´Ù. ±×·¯³ª ±¸¼ºÇÒ¶§ + <code>--enable-nonportable-atomics</code>¸¦ »ç¿ëÇϸé + APRÀº ºü¸¥ Çϵå¿þ¾î compare-and-swapÀ» À§ÇÑ 486 + ¸í·É¾î¸¦ »ç¿ëÇÑ´Ù. ´õ È¿À²ÀûÀÎ atomic ¸í·ÉÀÌ °¡´ÉÇÏÁö¸¸, + ÄÄÆÄÀÏÇÑ ½ÇÇàÆÄÀÏÀº 486 ÀÌ»ó Ĩ¿¡¼¸¸ (386Àº ¾ÈµÈ´Ù) + ½ÇÇàÇÒ ¼ö ÀÖ´Ù. + </li> + + </ul> + + + + <h3>mod_status¿Í ExtendedStatus On</h3> + + + + <p>¾ÆÆÄÄ¡¸¦ ÄÄÆÄÀÏÇÒ¶§ <code class="module"><a href="../mod/mod_status.html">mod_status</a></code>¸¦ Æ÷ÇÔÇÏ°í + ½ÇÇàÇÒ¶§ <code>ExtendedStatus On</code>À» ¼³Á¤ÇÏ¸é ¾ÆÆÄÄ¡´Â + ¿äûÀ» ¹ÞÀ»¶§¸¶´Ù <code>gettimeofday(2)</code>(ȤÀº ¿î¿µÃ¼Á¦¿¡ + µû¶ó <code>times(2)</code>)¸¦ µÎ¹ø È£ÃâÇÏ°í (1.3 ÀÌÀü¿¡´Â) + <code>time(2)</code>µµ Ãß°¡·Î ¿©·¯¹ø È£ÃâÇÑ´Ù. »óÅ º¸°í¼¿¡ + µ¿À۽ð£ÀÌ ÇÊ¿äÇϱ⠶§¹®ÀÌ´Ù. ÃÖ»óÀÇ ¼º´ÉÀ» ¾òÀ¸·Á¸é + (±âº»°ªÀÎ) <code>ExtendedStatus off</code>¸¦ ¼³Á¤ÇÑ´Ù.</p> + + + + <h3>accept Á÷·ÄÈ - ¿©·¯ ¼ÒÄÏ</h3> + + + + <div class="warning"><h3>ÁÖÀÇ:</h3> + <p> ¾Æ·¡ ¹®¼´Â ¾ÆÆÄÄ¡ À¥¼¹ö 2.0 ¹öÀü¿¡¼ º¯°æµÈ ³»¿ëÀ» + ´ã°í ÀÖÁö ¾Ê´Ù. ¾ÆÁ÷µµ À¯È¿ÇÑ Á¤º¸°¡ ÀÖÁö¸¸, ÁÖÀÇÇؼ + »ç¿ëÇÏ±æ ¹Ù¶õ´Ù.</p> + </div> + + <p>À¯´Ð½º ¼ÒÄÏ APIÀÇ ´ÜÁ¡À» ¼³¸íÇÑ´Ù. À¥¼¹ö°¡ ¿©·¯ Æ÷Æ® + ȤÀº ¿©·¯ 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. + ¿¬°áÀÌ °¡´ÉÇÑÁö °¢ ¼ÒÄÏÀ» °Ë»çÇϱâÀ§ÇØ ¾ÆÆÄÄ¡´Â + <code>select(2)</code>¸¦ »ç¿ëÇÑ´Ù. <code>select(2)</code>´Â + ¼ÒÄÏ¿¡ ±â´Ù¸®°í ÀÖ´Â ¿¬°áÀÌ <em>¾ø´ÂÁö</em> ȤÀº <em>ÃÖ¼ÒÇÑ + ÇÑ°³</em> ÀÖ´ÂÁö ¾Ë·ÁÁØ´Ù. ¾ÆÆÄÄ¡¿¡´Â ¿©·¯ ÀÚ½ÄÀÌ ÀÖ°í, + ½¬°í ÀÖ´Â ¸ðµç ÀÚ½ÄÀº µ¿½Ã¿¡ »õ·Î¿î ¿¬°áÀ» °Ë»çÇÑ´Ù. ¿ø·¡ + ±¸ÇöÀº ´ÙÀ½°ú ºñ½ÁÇÏ´Ù (ÀÌ ¿¹´Â Äڵ忡¼ °¡Á®¿ÀÁö ¾Ê¾Ò´Ù. + ´ÜÁö ¼³¸íÇϱâÀ§ÇÑ ¿ëµµ·Î ¸¸µé¾ú´Ù.):</p> + + <div class="example"><p><code> + for (;;) {<br /> + <span class="indent"> + for (;;) {<br /> + <span class="indent"> + fd_set accept_fds;<br /> + <br /> + FD_ZERO (&accept_fds);<br /> + for (i = first_socket; i <= last_socket; ++i) {<br /> + <span class="indent"> + FD_SET (i, &accept_fds);<br /> + </span> + }<br /> + rc = select (last_socket+1, &accept_fds, NULL, NULL, NULL);<br /> + if (rc < 1) continue;<br /> + new_connection = -1;<br /> + for (i = first_socket; i <= last_socket; ++i) {<br /> + <span class="indent"> + if (FD_ISSET (i, &accept_fds)) {<br /> + <span class="indent"> + new_connection = accept (i, NULL, NULL);<br /> + if (new_connection != -1) break;<br /> + </span> + }<br /> + </span> + }<br /> + if (new_connection != -1) break;<br /> + </span> + }<br /> + process the new_connection;<br /> + </span> + } + </code></p></div> + + <p>±×·¯³ª À§ÀÇ ´Ü¼øÇÑ ±¸Çö¿¡´Â ½É°¢ÇÑ °í°¥(starvation) + ¹®Á¦°¡ ÀÖ´Ù. ¿©·¯ ÀÚ½ÄÀÌ µ¿½Ã¿¡ ÀÌ ¹Ýº¹¹®À» ½ÇÇàÇϸé, + ¿äûÀ» ±â´Ù¸®¸ç ¸ðµÎ <code>select</code>¿¡¼ ¸ØÃá´Ù. À̶§ + ¾î¶² ¼ÒÄÏ¿¡ ¿äûÀÌ Çϳª¶óµµ µé¾î¿À¸é ¸ðµç ÀÚ½ÄÀÌ ±ú¾î³´Ù + (±ú¾î³ª´Â ÀÚ½ÄÀÇ °³¼ö´Â ¿î¿µÃ¼Á¦¿Í ŸÀֿ̹¡ µû¶ó ´Ù¸£´Ù). + À̵éÀº ¸ðµÎ ¿¬°áÀ» <code>accept</code>ÇÏ±æ ½ÃµµÇÑ´Ù. ±×·¯³ª + (¾ÆÁ÷µµ ÇÑ ¿¬°á¸¸ ´ë±âÁßÀ̶ó¸é) ÇÑ Àڽĸ¸ ¼º°øÇÏ°í, ³ª¸ÓÁö´Â + <code>accept</code>¿¡¼ <em>¸ØÃá´Ù.</em> ±×·¯¸é ÀÌ ÀڽĵéÀº + ÇÑ ¼ÒÄÏÀÇ ¿äû¸¸À» ¼ºñ½ºÇϵµ·Ï ¹¿©¼, ±× ¼ÒÄÏÀ¸·Î »õ·Î¿î + ¿äûÀÌ ÃæºÐÈ÷ µé¾î¿Í¼ ¸ðµç ÀÚ½ÄÀ» ±ú¿ï¶§±îÁö Á¤ÁöÇØÀÖ´Ù. + ÀÌ·± °í°¥ ¹®Á¦´Â <a href="http://bugs.apache.org/index/full/467">PR#467</a>¿¡ + óÀ½ º¸°íµÇ¾ú´Ù. ÃÖ¼ÒÇÑ µÎ°¡Áö ÇØ°áÃ¥ÀÌ ÀÖ´Ù.</p> + + <p>ÇÑ°¡Áö´Â ¼ÒÄÏÀ» ´ë±âÇÏÁö ¾Êµµ·Ï (non-blocking) ¸¸µå´Â + ¹æ¹ýÀÌ´Ù. ÀÌ °æ¿ì ÀÚ½ÄÀÌ <code>accept</code>¸¦ Çصµ ¸ØÃßÁö + ¾Ê°í, Áï½Ã ÁøÇàÇÒ ¼ö ÀÖ´Ù. ±×·¯³ª CPU ½Ã°£À» ³¶ºñÇÑ´Ù. + <code>select</code>¿¡¼ ½¬´Â ÀÚ½ÄÀÌ 10°³ ÀÖ°í, »õ·Î ¿¬°áÀÌ + ÇÑ°³ µé¾î¿Ô´Ù°í °¡Á¤ÇÏÀÚ. ±×·¯¸é ÀÌ ÀÚ½ÄÁß 9°³´Â ±ú¾î³ª¼ + ¿¬°áÀ» <code>accept</code>ÇÏ±æ ½ÃµµÇÏ°í ½ÇÆÐÇÏ¸é ¾Æ¹« + Àϵµ ÇÏÁö ¾Ê°í ´Ù½Ã <code>select</code>¸¦ ¹Ýº¹ÇÑ´Ù. ´Ù½Ã + <code>select</code>·Î µ¹¾Æ¿Ã ¶§±îÁö ¾î¶² Àڽĵµ ´Ù¸¥ ¼ÒÄÏ¿¡ + µé¾î¿Â ¿äûÀ» ¼ºñ½ºÇÏÁö ¾Ê´Â´Ù. (´ÙÁßÇÁ·Î¼¼¼ ÄÄÇ»ÅÍ¿¡¼) + ½¬´Â ÀÚ½Ä °³¼ö¸¸Å CPU °³¼ö°¡ ÀÖ´Â µå¹® °æ¿ì°¡ ¾Æ´Ï¶ó¸é + ÀÌ ÇØ°áÃ¥Àº º°·Î ÁÁ¾Æº¸ÀÌÁö ¾Ê´Â´Ù.</p> + + <p>´Ù¸¥ ¹æ¹ýÀº ¾ÆÆÄÄ¡°¡ »ç¿ëÇÏ´Â ¹æ¹ýÀ¸·Î ³»ºÎ ¹Ýº¹¹®¿¡ + ÇÑ Àڽĸ¸À» µé¿©º¸³½´Ù. ¹Ýº¹¹®Àº ´ÙÀ½°ú °°´Ù (Â÷À̸¦ + °Á¶ÇßÀ½):</p> + + <div class="example"><p><code> + for (;;) {<br /> + <span class="indent"> + <strong>accept_mutex_on ();</strong><br /> + for (;;) {<br /> + <span class="indent"> + fd_set accept_fds;<br /> + <br /> + FD_ZERO (&accept_fds);<br /> + for (i = first_socket; i <= last_socket; ++i) {<br /> + <span class="indent"> + FD_SET (i, &accept_fds);<br /> + </span> + }<br /> + rc = select (last_socket+1, &accept_fds, NULL, NULL, NULL);<br /> + if (rc < 1) continue;<br /> + new_connection = -1;<br /> + for (i = first_socket; i <= last_socket; ++i) {<br /> + <span class="indent"> + if (FD_ISSET (i, &accept_fds)) {<br /> + <span class="indent"> + new_connection = accept (i, NULL, NULL);<br /> + if (new_connection != -1) break;<br /> + </span> + }<br /> + </span> + }<br /> + if (new_connection != -1) break;<br /> + </span> + }<br /> + <strong>accept_mutex_off ();</strong><br /> + process the new_connection;<br /> + </span> + } + </code></p></div> + + <p><code>accept_mutex_on</code>°ú <code>accept_mutex_off</code> + <a id="serialize" name="serialize">ÇÔ¼ö</a>´Â mutex ¼¼¸¶Æ÷¾î¸¦ + ±¸ÇöÇÑ´Ù. Çѹø¿¡ ¿ÀÁ÷ ÇÑ Àڽĸ¸ÀÌ mutex¸¦ °¡Áú ¼ö ÀÖ´Ù. + mutex¸¦ ±¸ÇöÇÏ´Â ¹æ¹ýÀº ¿©·¯°¡ÁöÀÌ´Ù. ±¸Çö ¹æ¹ýÀº (1.3 + ÀÌÀü) <code>src/conf.h</code>³ª (1.3°ú ±× ÀÌÈÄ) + <code>src/include/ap_config.h</code>¿¡ Á¤ÀǵÇÀÖ´Ù. ¾î¶² + ¾ÆÅ°ÅØÃÄ´Â Àá±Ý(locking) ¹æ¹ýÀ» ¼±ÅÃÇÏÁö ¾Ê±â¶§¹®¿¡, ÀÌ·± + ¾ÆÅ°ÅØÃÄ¿¡¼ ¿©·¯ <code class="directive"><a href="../mod/mpm_common.html#listen">Listen</a></code> Áö½Ã¾î¸¦ »ç¿ëÇϸé + À§ÇèÇÏ´Ù.</p> + + <p>½ÇÇà½Ã <code class="directive"><a href="../mod/mpm_common.html#acceptmutex">AcceptMutex</a></code> Áö½Ã¾î¸¦ »ç¿ëÇÏ¿© + mutex ±¸ÇöÀ» º¯°æÇÒ ¼ö ÀÖ´Ù.</p> + + <dl> + <dt><code>AcceptMutex flock</code></dt> + + <dd> + <p>ÀÌ ¹æ¹ýÀº Àá±ÝÆÄÀÏÀ» Àá±×±âÀ§ÇØ <code>flock(2)</code> + 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> + </dd> + + <dt><code>AcceptMutex fcntl</code></dt> + + <dd> + <p>ÀÌ ¹æ¹ýÀº Àá±ÝÆÄÀÏÀ» Àá±×±âÀ§ÇØ <code>fcntl(2)</code> + 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> + </dd> + + <dt><code>AcceptMutex sysvsem</code></dt> + + <dd> + <p>(1.3°ú ±× ÀÌÈÄ) ÀÌ ¹æ¹ýÀ» SysV½Ä ¼¼¸¶Æ÷¾î¸¦ »ç¿ëÇÏ¿© + mutex¸¦ ±¸ÇöÇÑ´Ù. ºÒÇàÈ÷µµ SysV½Ä ¼¼¸¶Æ÷¾î´Â ³ª»Û + ºÎÀÛ¿ëÀÌ ÀÖ´Ù. Çϳª´Â ¾ÆÆÄÄ¡°¡ ¼¼¸¶Æ÷¾î¸¦ Á¤¸®ÇÏÁö + ¾Ê°í Á×À» ¼ö ÀÖ´Â Á¡ÀÌ´Ù (<code>ipcs(8)</code> manpage + Âü°í). ´Ù¸¥ Çϳª´Â À¥¼¹ö¿Í µ¿ÀÏÇÑ uid·Î ½ÇÇàÇÏ´Â + CGI°¡ (<em>Áï,</em> <code>suexec</code>³ª + <code>cgiwrapper</code>¸¦ »ç¿ëÇÏÁö¾Ê´Â ÇÑ ¸ðµç CGI) + ¼¼¸¶Æ÷¾î API¸¦ »ç¿ëÇÏ¿© ¼ºñ½º°ÅºÎ°ø°ÝÀ» ÇÒ ¼ö ÀÖ´Â + Á¡ÀÌ´Ù. ÀÌ·± ÀÌÀ¯¶§¹®¿¡ IRIX¸¦ Á¦¿ÜÇÑ ¾ÆÅ°ÅØÃÄ¿¡¼ + ÀÌ ¹æ¹ýÀ» »ç¿ëÇÏÁö ¾Ê´Â´Ù (´ëºÎºÐÀÇ IRIX ÄÄÇ»ÅÍ¿¡¼ + ¾ÕÀÇ µÎ ¹æ¹ýÀº Áö³ªÄ¡°Ô ¹ö°Ì´Ù).</p> + </dd> + + <dt><code>AcceptMutex pthread</code></dt> + + <dd> + <p>(1.3°ú ±× ÀÌÈÄ) ÀÌ ¹æ¹ýÀº POSIX mutex¸¦ »ç¿ëÇϱ⶧¹®¿¡ + POSIX ¾²·¹µå ±Ô¾àÀ» ¿ÏÀüÈ÷ ±¸ÇöÇÑ ¾ÆÅ°ÅØÃĶó¸é ¸ðµÎ + »ç¿ë°¡´ÉÇÏÁö¸¸, (2.5 ÀÌÈÄ) Solaris¿¡¼¸¸ ±×°Íµµ ƯÁ¤ + ±¸¼º¿¡¼¸¸ µ¿ÀÛÇÏ´Â µíÇÏ´Ù. ÀÌ ¹æ¹ýÀ» ½ÃµµÇغ»´Ù¸é + ¼¹ö°¡ ¸ØÃç¼ ÀÀ´äÀ» ¾ÈÇÏ´ÂÁö »ìÆìºÁ¾ß ÇÑ´Ù. Á¤Àû + ³»¿ë¸¸ ¼ºñ½ºÇÏ´Â ¼¹ö´Â Àß µ¿ÀÛÇÏ´Â °Í °°´Ù.</p> + </dd> + + <dt><code>AcceptMutex posixsem</code></dt> + + <dd> + <p>(2.0°ú ±× ÀÌÈÄ) ÀÌ ¹æ¹ýÀº POSIX ¼¼¸¶Æ÷¾î¸¦ »ç¿ëÇÑ´Ù. + mutex¸¦ °¡Áø ÇÁ·Î¼¼½ºÀÇ ¾²·¹µå°¡ Á״´ٸé(segfault) + ¼¼¸¶Æ÷¾î ¼ÒÀ¯±ÇÀÌ È¸º¹µÇÁö ¾Ê¾Æ¼ À¥¼¹ö°¡ ¸ØÃá´Ù.</p> + </dd> + + </dl> + + <p>½Ã½ºÅÛ¿¡ À§ ¸ñ·Ï¿¡ ¾ø´Â Á÷·ÄÈ(serialization) ¹æ¹ýÀÌ + ÀÖ´Ù¸é ±× ¹æ¹ýÀ» »ç¿ëÇÏ´Â Äڵ带 APR¿¡ Ãß°¡ÇÒ °¡Ä¡°¡ ÀÖ´Ù.</p> + + <p>°í·Á´Â ÇغÃÁö¸¸ ±¸ÇöÇÏÁö¾ÊÀº ´Ù¸¥ ¹æ¹ýÀº ºÎºÐÀûÀ¸·Î + ¹Ýº¹¹®À» Á÷·ÄÈÇÏ´Â ¹æ¹ýÀÌ´Ù. Áï, ÇÁ·Î¼¼¼¸¦ ¸î°³¸¸ µé¿©º¸³»´Â + °ÍÀÌ´Ù. ÀÌ ¹æ¹ýÀº ¿©·¯ ÀÚ½ÄÀ» µ¿½Ã¿¡ ½ÇÇàÇÒ ¼ö ÀÖ¾î¼ + Á÷·Äȶ§¹®¿¡ Àüü ´ë¿ªÆøÀ» È°¿ëÇÏÁö ¸øÇÏ´Â ´ÙÁßÇÁ·Î¼¼¼ + ÄÄÇ»ÅÍ¿¡¼¸¸ °ü½ÉÀ» °¡Á®º¼ ¼ö ÀÖ´Ù. ¾ÕÀ¸·Î »ìÆ캼 ºÎºÐÀÌÁö¸¸, + ¸Å¿ì º´·ÄÈµÈ À¥¼¹ö°¡ ÈçÇÏÁö ¾Ê¾Æ¼ ¿ì¼±¼øÀ§°¡ ³·´Ù.</p> + + <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 + °ÍÀÌ ÀÌ»óÀûÀÌ´Ù. ±×·¯³ª °è¼Ó ¼³¸íÇÑ´Ù.</p> + + + + <h3>accept Á÷·ÄÈ - ¼ÒÄÏ ÇÑ°³</h3> + + + + <p>¾ÕÀÇ ¼³¸íÀº ´ÙÁß¼ÒÄÏ ¼¹ö¿¡´Â ÁÁÁö¸¸, ¼ÒÄÏÀÌ ÇÑ°³ÀÎ + ¼¹ö´Â ¾î¶²°¡? ¿¬°áÀÌ µµÂøÇÒ¶§±îÁö ¸ðµç ÀÚ½ÄÀÌ + <code>accept(2)</code>¿¡¼ ¸ØÃçÀֱ⶧¹®¿¡ ÀÌ·Ð»ó °°Àº + ¹®Á¦°¡ ¹ß»ýÇÏÁö ¾Ê°í, °í°¥ ¹®Á¦µµ ¾ø´Ù. ±×·¯³ª ½ÇÁ¦·Î´Â + ¾Õ¿¡¼ ¸»ÇÑ ´ë±âÇÏÁö ¾Ê´Â (non-blocking) ¹æ¹ý¿¡¼ ¹ß»ýÇÏ´Â + "°øȸÀü(spinning)" Çö»óÀ» °¨Ãß°í ÀÖ´Ù. ´ëºÎºÐÀÇ TCP ½ºÅÃÀº + ¿¬°áÀÌ µµÂøÇϸé Ä¿³ÎÀÌ <code>accept</code>¿¡¼ ¸ØÃçÀÖ´Â + ¸ðµç ÀÚ½ÄÀ» ±ú¿ìµµ·Ï ±¸ÇöµÇÀÖ´Ù. ÇÁ·Î¼¼½ºÁß ÇÑ°³°¡ ¿¬°áÀ» + ¾ò°í »ç¿ëÀÚ¿µ¿ªÀ¸·Î µ¹¾Æ°¡°í, ³ª¸ÓÁö´Â Ä¿³Î¿¡¼ °øȸÀüÇÏ¿© + ¿¬°áÀÌ ¾øÀ½À» ¹ß°ßÇÏ¸é ´Ù½Ã ÀáÀ» ÀÜ´Ù. »ç¿ëÀÚ¿µ¿ª Äڵ忡¼´Â + ÀÌ·± °øȸÀüÀ» ¾Ë ¼ö ¾øÁö¸¸, ºÐ¸íÈ÷ Á¸ÀçÇÑ´Ù. ±×·¡¼ ´ÙÁß¼ÒÄÏÀÇ + ´ë±âÇÏÁö ¾Ê´Â ¹æ¹ý°ú µ¿ÀÏÇÏ°Ô ºÎÇϸ¦ ³ôÀÌ´Â ºÒÇÊ¿äÇÑ ÇൿÀÌ + ÀϾÙ.</p> + + <p>±×·¡¼ ¿ì¸®´Â ¿©·¯ ¾ÆÅ°ÅØÃÄ¿¡¼ ¼ÒÄÏÀÌ ÇÑ°³ÀÎ °æ¿ì¿¡µµ + Á÷·ÄÈÇÏ¸é ´õ "Àß" µ¿ÀÛÇÔÀ» ¹ß°ßÇß´Ù. ±×·¡¼ °ÅÀÇ ´ëºÎºÐÀÇ + °æ¿ì ±âº»ÀûÀ¸·Î Á÷·Äȸ¦ »ç¿ëÇÑ´Ù. ¸®´ª½º¿¡¼ (Ä¿³Î 2.0.30, + 128Mb ¸Þ¸ð¸®¿¡ µà¾ó Pentium pro) ½ÇÇèÇÑ °á°ú ¼ÒÄÏ ÇÑ°³¸¦ + Á÷·ÄÈÇϸé ÇÏÁö ¾ÊÀº °æ¿ì¿¡ ºñÇØ ÃÊ´ç ¿äûÀÌ 3% ¹Ì¸¸ + ÁÙ¾îµé¾ú´Ù. ±×·¯³ª Á÷·Äȸ¦ ÇÏÁö ¾ÊÀº °æ¿ì ¿äû´ç 100ms + Áö¿¬ÀÌ ¹ß»ýÇß´Ù. ÀÌ Áö¿¬Àº ¾Æ¸¶µµ LAN¿¡¼ ¹ß»ýÇÏ´Â ±ä + ¿¬°á¼±¶§¹®ÀÏ °ÍÀÌ´Ù. ¼ÒÄÏÀÌ ÇÑ°³ÀÎ °æ¿ì Á÷·Äȸ¦ »ç¿ëÇÏÁö + ¾ÊÀ¸·Á¸é <code>SINGLE_LISTEN_UNSERIALIZED_ACCEPT</code>¸¦ + Á¤ÀÇÇÑ´Ù.</p> + + + + <h3>Close Áö¿¬(lingering)</h3> + + + + <p><a href="http://www.ics.uci.edu/pub/ietf/http/draft-ietf-http-connection-00.txt"> + draft-ietf-http-connection-00.txt</a> 8Àý¿¡¼ ¼³¸íÇϵíÀÌ + <strong>¾ÈÁ¤ÀûÀÎ</strong> À¥¼¹ö°¡ µÇ·Á¸é, Åë½ÅÀÇ ¾ç ¹æÇâÀ» + µ¶¸³ÀûÀ¸·Î ´ÝÀ» ¼ö ÀÖ¾î¾ß ÇÑ´Ù (TCP ¿¬°áÀº ½Ö¹æÇâÀÌ°í, + ¹æÇâÀº ¼·Î µ¶¸³ÀûÀÌ´Ù). ÀÌÁ¡À» ´Ù¸¥ ¼¹ö¿¡¼´Â ÀÚÁÖ + °£°úÇÏÁö¸¸, ¾ÆÆÄÄ¡´Â 1.2ºÎÅÍ Á¤È®È÷ ±¸ÇöÇØ¿Ô´Ù.</p> + + <p>ÀÌ ±â´ÉÀ» ºÎÁÖÀÇÇÏ°Ô ¾ÆÆÄÄ¡¿¡ Ãß°¡ÇßÀ»¶§ ¿©·¯ À¯´Ð½º + ¹öÀü¿¡¼ ¸¹Àº ¹®Á¦°¡ ¹ß»ýÇß´Ù. TCP ±Ô¾àÀº + <code>FIN_WAIT_2</code>¿¡ ŸÀӾƿôÀÌ ÀÖ´Ù°í Á¤ÇÏÁö ¾Ê¾ÒÁö¸¸, + ±ÝÁöÇÏÁöµµ ¾Ê¾Ò´Ù. ŸÀӾƿôÀÌ ¾ø´Â ½Ã½ºÅÛ¿¡¼ ¾ÆÆÄÄ¡ 1.2´Â + ¸¹Àº ¼ÒÄÏÀ» ¿µ¿øÈ÷ <code>FIN_WAIT_2</code> »óÅ·Π¸¸µé¾ú´Ù. + ¸¹Àº °æ¿ì ÀÌ ¹®Á¦´Â Á¦Àۻ簡 Á¦°øÇÏ´Â ÃֽŠTCP/IP ÆÐÄ¡¸¦ + Àû¿ëÇÏ¿© ÇØ°áÇÒ ¼ö ÀÖ´Ù. ±×·¯³ª Á¦Àۻ簡 ÆÐÄ¡¸¦ ¹ßÇ¥ÇÏÁö + ¾Ê´Â °æ¿ì°¡ (<em>Áï,</em> SunOS4 -- ¼Ò½º ¶óÀ̼±½º°¡ ÀÖ´Â + »ç¶÷Àº Á÷Á¢ ÆÐÄ¡ÇÒ ¼ö ÀÖÁö¸¸) Àֱ⶧¹®¿¡ ÀÌ ±â´ÉÀ» »ç¿ëÇÏÁö + ¾Ê±â·Î °áÁ¤Çß´Ù.</p> + + <p>¹æ¹ýÀº µÎ°¡Áö´Ù. Çϳª´Â ¼ÒÄÏ ¿É¼Ç <code>SO_LINGER</code>¸¦ + »ç¿ëÇÏ´Â ¹æ¹ýÀÌ´Ù. ±×·¯³ª ºÒÇàÈ÷µµ ´ëºÎºÐÀÇ TCP/IP ½ºÅÃÀº + ÀÌ ¿É¼ÇÀ» ¿Ã¹Ù·Î ±¸ÇöÇÏÁö ¾Ê¾Ò´Ù. ¿Ã¹Ù·Î ±¸ÇöÇÑ ½ºÅÿ¡¼ + Á¶Â÷µµ (<em>Áï,</em> ¸®´ª½º 2.0.31) ÀÌ ¹æ¹ýÀº ´ÙÀ½ ¹æ¹ýº¸´Ù + ´õ cpu¸¦ Àâ¾Æ¸Ô´Â´Ù.</p> + + <p>¾ÆÆÄÄ¡´Â º¸Åë (<code>http_main.c</code>¿¡ ÀÖ´Â) + <code>lingering_close</code>¶ó´Â ÇÔ¼ö¸¦ »ç¿ëÇÑ´Ù. ÀÌ ÇÔ¼ö´Â + ´ëÃæ ´ÙÀ½°ú °°´Ù:</p> + + <div class="example"><p><code> + void lingering_close (int s)<br /> + {<br /> + <span class="indent"> + char junk_buffer[2048];<br /> + <br /> + /* shutdown the sending side */<br /> + shutdown (s, 1);<br /> + <br /> + signal (SIGALRM, lingering_death);<br /> + alarm (30);<br /> + <br /> + for (;;) {<br /> + <span class="indent"> + select (s for reading, 2 second timeout);<br /> + if (error) break;<br /> + if (s is ready for reading) {<br /> + <span class="indent"> + if (read (s, junk_buffer, sizeof (junk_buffer)) <= 0) {<br /> + <span class="indent"> + break;<br /> + </span> + }<br /> + /* just toss away whatever is here */<br /> + </span> + }<br /> + </span> + }<br /> + <br /> + close (s);<br /> + </span> + } + </code></p></div> + + <p>ÀÌ ÄÚµå´Â ¿¬°áÀ» ´ÝÀ»¶§ ´õ CPU¸¦ »ç¿ëÇÏÁö¸¸, ¾ÈÁ¤ÀûÀÎ + ±¸ÇöÀ» À§ÇØ ÇÊ¿äÇÏ´Ù. HTTP/1.1ÀÌ ´õ ³Î¸® ÆÛÁö°í ¸ðµç ¿¬°áÀ» + À¯ÁöÇÑ´Ù¸é(persistent), ¿¬°áÀ» ¹Þ´Â ºñ¿ëÀº ¿©·¯ ¿äûÀ» + ó¸®ÇÏ¸é¼ »ó¼âµÉ °ÍÀÌ´Ù. À§ÇèÇÏ°Ôµµ + <code>NO_LINGCLOSE</code>¸¦ Á¤ÀÇÇÏ¿© ÀÌ ±â´ÉÀ» »ç¿ëÇÏÁö + ¾ÊÀ» ¼ö ÀÖÁö¸¸, Àý´ë·Î ±ÇÇÏÁö ¾Ê´Â´Ù. ƯÈ÷ HTTP/1.1 + ÆÄÀÌÇÁ¶óÀÎ <span class="transnote">(<em>¿ªÁÖ;</em> ¿¬°áÀ¯Áö »óÅ¿¡¼ ÀÀ´äÀ» ±â´Ù¸®Áö + ¾Ê°í ¿©·¯ ¿äûÀ» º¸³»´Â ±â¼ú)</span> ¿¬°áÀ¯Áö¿¡´Â + <code>lingering_close</code>°¡ ÇʼöÀûÀÌ´Ù (±×¸®°í <a href="http://www.w3.org/Protocols/HTTP/Performance/Pipeline.html"> + ÆÄÀÌÇÁ¶óÀÎ ¿¬°áÀÌ ´õ ºü¸£±â¶§¹®¿¡</a> »ç¿ëÇÏ±æ ¹Ù¶ö °ÍÀÌ´Ù).</p> + + + + <h3>Scoreboard ÆÄÀÏ</h3> + + + + <p>¾ÆÆÄÄ¡ÀÇ ºÎ¸ð¿Í ÀÚ½ÄÀº scoreboard¶ó´Â °ÍÀ» ÅëÇØ ¼·Î + Åë½ÅÇÑ´Ù. ÀÌ»óÀûÀ¸·Î´Â scoreboard¸¦ °øÀ¯¸Þ¸ð¸®·Î ±¸ÇöÇØ¾ß + ÇÑ´Ù. ¿ì¸® °³¹ßÀÚ°¡ ÇØ´ç ¿î¿µÃ¼Á¦¿¡ Á¢±ÙÇÒ ¼ö Àְųª »ó¼¼ÇÑ + Æ÷Æà °á°ú¸¦ ¹ÞÀº °æ¿ì º¸Åë °øÀ¯¸Þ¸ð¸®¸¦ »ç¿ëÇÏ¿© ±¸ÇöÇÑ´Ù. + ³ª¸ÓÁö´Â µð½ºÅ©¿¡ ÀÖ´Â ÆÄÀÏÀ» »ç¿ëÇÏ¿© ±¸ÇöÇÑ´Ù. µð½ºÅ©¿¡ + ÀÖ´Â ÆÄÀÏÀº ´À¸®°í ½Å·Úµµ°¡ ¶³¾îÁø´Ù (±â´Éµµ ´õ Àû´Ù). + <code>src/main/conf.h</code> ÆÄÀÏ¿¡¼ »ç¿ëÇÏ´Â ¾ÆÅ°ÅØÃĸ¦ + ã¾Æ¼ <code>USE_MMAP_SCOREBOARD</code> ȤÀº + <code>USE_SHMGET_SCOREBOARD</code>ÀÎÁö È®ÀÎÇÑ´Ù. µÑÁß + Çϳª¸¦ (°¢°¢ ÇÔ²² »ç¿ëÇÒ <code>HAVE_MMAP</code>À̳ª + <code>HAVE_SHMGET</code>µµ °°ÀÌ) Á¤ÀÇÇÏ¸é °øÀ¯¸Þ¸ð¸® Äڵ带 + »ç¿ëÇÑ´Ù. ½Ã½ºÅÛÀÌ ´Ù¸¥ Á¾·ùÀÇ °øÀ¯¸Þ¸ð¸®¸¦ »ç¿ëÇÑ´Ù¸é + <code>src/main/http_main.c</code> ÆÄÀÏÀ» ¼öÁ¤ÇÏ¿© ¾ÆÆÄÄ¡¿¡¼ + °øÀ¯¸Þ¸ð¸®¸¦ »ç¿ëÇÒ ¼ö ÀÖµµ·Ï ÈÅ(hook)À» Ãß°¡Ç϶ó. (¶ÇÇÑ + ÆÐÄ¡¸¦ ¿ì¸®¿¡°Ô º¸³»ÁÖ±æ ¹Ù¶õ´Ù.)</p> + + <div class="note">¿ª»çÀû ¼³¸í: ¾ÆÆÄÄ¡ÀÇ ¸®´ª½º ¹öÀüÀº ¾ÆÆÄÄ¡ 1.2 ¹öÀüºÎÅÍ + °øÀ¯¸Þ¸ð¸®¸¦ »ç¿ëÇϱ⠽ÃÀÛÇß´Ù. ¸®´ª½º¿¡¼ Ãʱ⠾ÆÆÄÄ¡ + ¹öÀüÀÌ ´À¸®°í ½Å·Úµµ°¡ ¶³¾îÁ³±â ¶§¹®ÀÌ´Ù.</div> + + + + <h3>DYNAMIC_MODULE_LIMIT</h3> + + + + <p>¸ðµâÀ» µ¿ÀûÀ¸·Î ÀоîµéÀÌÁö ¾Ê´Â´Ù¸é (°¡´ÉÇÑ Á¶±ÝÀÌ¶óµµ + ¼º´ÉÀ» ³ôÀ̱âÀ§ÇØ ÀÌ ±ÛÀ» ÀÐ´Â´Ù¸é ¾Æ¸¶µµ ¸ðµâÀ» µ¿ÀûÀ¸·Î + ÀоîµéÀÌÁö ¾ÊÀ» °ÍÀÌ´Ù), ¼¹ö¸¦ ÄÄÆÄÀÏÇÒ¶§ + <code>-DDYNAMIC_MODULE_LIMIT=0</code>À» Ãß°¡ÇÑ´Ù. ±×·¯¸é + ¸ðµâÀ» µ¿ÀûÀ¸·Î ÀоîµéÀ̱âÀ§ÇØ ÇÒ´çÇÏ´Â ¸Þ¸ð¸®¸¦ Àý¾àÇÑ´Ù.</p> + + + + </div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="section"> +<h2><a name="trace" id="trace">ºÎ·Ï: ½Ã½ºÅÛÈ£Ãâ ±â·ÏÀ» ÀÚ¼¼È÷ ºÐ¼®Çϱâ</a></h2> + + + + <p>´ÙÀ½Àº Solaris 8¿¡¼ worker MPMÀ» »ç¿ëÇÑ ¾ÆÆÄÄ¡ 2.0.38ÀÇ + ½Ã½ºÅÛÈ£Ãâ ±â·Ï(trace)ÀÌ´Ù. ¾Æ·¡ ¸í·É¾î¸¦ »ç¿ëÇÏ¿© ±â·ÏÀ» + ¾ò¾ú´Ù:</p> + + <div class="example"><p><code> + truss -l -p <var>httpd_child_pid</var>. + </code></p></div> + + <p><code>-l</code> ¿É¼ÇÀ» »ç¿ëÇϸé truss´Â ½Ã½ºÅÛÈ£ÃâÀ» + ÇÏ´Â LWP (lightweight process, °æ·®±Þ ÇÁ·Î¼¼½º--SolarisÀÇ + Ä¿³Î¼öÁØ ¾²·¹µå) ID¸¦ °°ÀÌ ±â·ÏÇÑ´Ù.</p> + + <p>´Ù¸¥ ½Ã½ºÅÛ¿¡´Â <code>strace</code>, <code>ktrace</code>, + <code>par</code> °°Àº ½Ã½ºÅÛÈ£Ãâ ÃßÀû µµ±¸°¡ ÀÖ´Ù. °á°ú´Â + ºñ½ÁÇÏ´Ù.</p> + + <p>Ŭ¶óÀ̾ðÆ®´Â À¥¼¹ö¿¡°Ô Å©±â°¡ 10KBÀÎ Á¤Àû ÆÄÀÏÀ» ¿äûÇÑ´Ù. + Á¤ÀûÀÎ ÆÄÀÏÀ» ¿äûÇÏÁö ¾Ê°Å³ª ³»¿ëÇù»óÇÏ´Â ¿äûÀ» ÇÑ °æ¿ì + ±â·ÏÀÌ ¸Å¿ì ´Ù¸£´Ù (¶§·Î´Â ¸Å¿ì ¾Ë¾Æº¸±â Èûµé´Ù).</p> + + <div class="example"><pre>/67: accept(3, 0x00200BEC, 0x00200C0C, 1) (sleeping...) +/67: accept(3, 0x00200BEC, 0x00200C0C, 1) = 9</pre></div> + + <p>À§¿¡¼ ¿¬°á´ë±â(listener) ¾²·¹µå°¡ LWP #67¿¡¼ ½ÇÇàµÊÀ» + ¾Ë ¼ö ÀÖ´Ù.</p> + + <div class="note"><code>accept(2)</code> Á÷·Äȸ¦ »ç¿ëÇÏÁö ¾ÊÀ½À» ÁÖ¸ñÇ϶ó. + ¿©·¯ Æ÷Æ®¸¦ ±â´Ù¸®Áö¾Ê´Â °æ¿ì ÀÌ Ç÷¡ÆûÀÇ worker MPMÀº + ±âº»ÀûÀ¸·Î Á÷·ÄÈÇÏÁö ¾ÊÀº accept¸¦ »ç¿ëÇÑ´Ù.</div> + + <div class="example"><pre>/65: lwp_park(0x00000000, 0) = 0 +/67: lwp_unpark(65, 1) = 0</pre></div> + + <p>¿¬°áÀº ¹Þ¾ÆµéÀÌ°í(accept) ¿¬°á´ë±â ¾²·¹µå´Â + worker ¾²·¹µå¸¦ ±ú¿ö¼ ¿äûÀ» ó¸®ÇÏ°Ô ÇÑ´Ù. ¾Æ·¡ ±â·Ï¿¡¼ + ¿äûÀ» ó¸®ÇÏ´Â worker ¾²·¹µå°¡ LWP #65ÀÓÀ» ¾Ë ¼ö ÀÖ´Ù.</p> + + <div class="example"><pre>/65: getsockname(9, 0x00200BA4, 0x00200BC4, 1) = 0</pre></div> + + <p>°¡»óÈ£½ºÆ®¸¦ ±¸ÇöÇϱâÀ§ÇØ ¾ÆÆÄÄ¡´Â ¿¬°áÀ» ¹Þ¾ÆµéÀÎ + Áö¿ª(local) ¼ÒÄÏ ÁÖ¼Ò¸¦ ¾Ë¾Æ¾ß ÇÑ´Ù. (°¡»óÈ£½ºÆ®¸¦ »ç¿ëÇÏÁö + ¾Ê°Å³ª <code class="directive"><a href="../mod/mpm_common.html#listen">Listen</a></code> + Áö½Ã¾î¿¡ ¿ÍÀϵåÄ«µå ÁÖ¼Ò¸¦ »ç¿ëÇÏÁö ¾ÊÀº °æ¿ì µî) ¸¹Àº °æ¿ì + ÀÌ È£ÃâÀ» ¾ø¾Ù ¼ö ÀÖ´Ù. ±×·¯³ª ¾ÆÁ÷ ÀÌ·± ÃÖÀûÈ ÀÛ¾÷ÀÌ + ¾ÈµÇÀÖ´Ù. </p> + + <div class="example"><pre>/65: brk(0x002170E8) = 0 +/65: brk(0x002190E8) = 0</pre></div> + + <p><code>brk(2)</code> È£ÃâÀº Èü(heap)¿¡¼ ¸Þ¸ð¸®¸¦ ÇÒ´çÇÑ´Ù. + À¥¼¹ö´Â ´ëºÎºÐÀÇ ¿äû 󸮽à ÀÚü ¸Þ¸ð¸® + ÇÒ´çÀÚ(<code>apr_pool</code>°ú <code>apr_bucket_alloc</code>)¸¦ + »ç¿ëÇϱ⶧¹®¿¡ ½Ã½ºÅÛÈ£Ãâ ±â·Ï¿¡¼ ÀÌ ½Ã½ºÅÛÈ£ÃâÀ» º¸±â°¡ + µå¹°´Ù. ÀÌ ±â·Ï¿¡¼ À¥¼¹ö´Â ½ÃÀÛÇÏÀÚ¸¶ÀÚ ÀÚü ¸Þ¸ð¸® ÇÒ´çÀÚ°¡ + »ç¿ëÇÒ ¸Þ¸ð¸®ºí·ÏÀ» ¾ò±âÀ§ÇØ <code>malloc(3)</code>À» È£ÃâÇÑ´Ù.</p> + + <div class="example"><pre>/65: fcntl(9, F_GETFL, 0x00000000) = 2 +/65: fstat64(9, 0xFAF7B818) = 0 +/65: getsockopt(9, 65535, 8192, 0xFAF7B918, 0xFAF7B910, 2190656) = 0 +/65: fstat64(9, 0xFAF7B818) = 0 +/65: getsockopt(9, 65535, 8192, 0xFAF7B918, 0xFAF7B914, 2190656) = 0 +/65: setsockopt(9, 65535, 8192, 0xFAF7B918, 4, 2190656) = 0 +/65: fcntl(9, F_SETFL, 0x00000082) = 0</pre></div> + + <p>´ÙÀ½ worker ¾²·¹µå´Â Ŭ¶óÀ̾ðÆ®ÀÇ ¿¬°á(ÆÄÀϱâ¼úÀÚ 9)À» + ´ë±â¾ÈÇÔ(non-blocking) »óÅ·Π¹Ù²Û´Ù. <code>setsockopt(2)</code>¿Í + <code>getsockopt(2)</code> È£ÃâÀº SolarisÀÇ libc°¡ ¼ÒÄÏ¿¡ + ´ëÇÑ <code>fcntl(2)</code>À» ¾î¶»°Ô ó¸®ÇÏ´ÂÁö º¸¿©ÁØ´Ù.</p> + + <div class="example"><pre>/65: read(9, " G E T / 1 0 k . h t m".., 8000) = 97</pre></div> + + <p>worker ¾²·¹µå´Â Ŭ¶óÀ̾ðÆ®·Î ºÎÅÍ ¿äûÀ» Àд´Ù.</p> + + <div class="example"><pre>/65: stat("/var/httpd/apache/httpd-8999/htdocs/10k.html", 0xFAF7B978) = 0 +/65: open("/var/httpd/apache/httpd-8999/htdocs/10k.html", O_RDONLY) = 10</pre></div> + + <p>À¥¼¹ö ¼³Á¤Àº <code>Options FollowSymLinks</code>¿Í + <code>AllowOverride None</code>ÀÌ´Ù. ±×·¡¼ ¿äûÇÑ ÆÄÀÏ°æ·ÎÀÇ + °¢ µð·ºÅ丮¿¡ ´ëÇØ <code>lstat(2)</code>Çϰųª + <code>.htaccess</code> ÆÄÀÏÀ» °Ë»çÇÒ ÇÊ¿ä°¡ ¾ø´Ù. ÆÄÀÏÀ» + °Ë»çÇϱâÀ§ÇØ, 1) ÆÄÀÏÀÌ ÀÖ´ÂÁö, 2) µð·ºÅ丮°¡ ¾Æ´Ñ ÀϹÝÆÄÀÏÀÎÁö, + <code>stat(2)</code> È£Ã⸸ ÇÏ¸é µÈ´Ù.</p> + + <div class="example"><pre>/65: sendfilev(0, 9, 0x00200F90, 2, 0xFAF7B53C) = 10269</pre></div> + + <p>ÀÌ °æ¿ì À¥¼¹ö´Â ÇѹøÀÇ <code>sendfilev(2)</code> ½Ã½ºÅÛÈ£Ãâ·Î + HTTP ÀÀ´äÇì´õ¿Í ¿äûÇÑ ÆÄÀÏÀ» Àü¼ÛÇÒ ¼ö ÀÖ´Ù. Sendfile Áö¿ø¿©ºÎ´Â + ¿î¿µÃ¼Á¦¸¶´Ù ´Ù¸£´Ù. ´Ù¸¥ ½Ã½ºÅÛÀ̶ó¸é <code>sendfile(2)</code>À» + È£ÃâÇϱâ Àü¿¡ Çì´õ¸¦ º¸³»±âÀ§ÇØ <code>write(2)</code>³ª + <code>writev(2)</code> È£ÃâÀ» ÇÑ´Ù.</p> + + <div class="example"><pre>/65: write(4, " 1 2 7 . 0 . 0 . 1 - ".., 78) = 78</pre></div> + + <p><code>write(2)</code> È£ÃâÀº Á¢±Ù·Î±×(access log)¿¡ ¿äûÀ» + ±â·ÏÇÑ´Ù. ÀÌ ±â·Ï¿¡ <code>time(2)</code> È£ÃâÀÌ ¾øÀ½À» ÁÖ¸ñÇ϶ó. + ¾ÆÆÄÄ¡ 1.3°ú ´Þ¸® ¾ÆÆÄÄ¡ 2.0Àº ½Ã°£À» ¾Ë±âÀ§ÇØ + <code>gettimeofday(3)</code>¸¦ »ç¿ëÇÑ´Ù. + <code>gettimeofday</code>¸¦ ÃÖÀûÈÇÑ ¸®´ª½º¿Í Solaris °°Àº + ¸î¸î ¿î¿µÃ¼Á¦¿¡¼´Â ÀϹÝÀûÀÎ ½Ã½ºÅÛÈ£Ã⠺δãÀÌ ¾ø´Ù.</p> + + <div class="example"><pre>/65: shutdown(9, 1, 1) = 0 +/65: poll(0xFAF7B980, 1, 2000) = 1 +/65: read(9, 0xFAF7BC20, 512) = 0 +/65: close(9) = 0</pre></div> + + <p>worker ¾²·¹µå´Â ¿¬°áÀ» Áö¿¬´Ý±â(lingering close)ÇÑ´Ù.</p> + + <div class="example"><pre>/65: close(10) = 0 +/65: lwp_park(0x00000000, 0) (sleeping...)</pre></div> + + <p>¸¶Áö¸·À¸·Î worker ¾²·¹µå´Â ¹æ±Ý Àü¼ÛÇÑ ÆÄÀÏÀ» ´Ý°í, + ¿¬°á´ë±â(listener) ¾²·¹µå°¡ ´Ù¸¥ ¿¬°áÀ» ÇÒ´çÇÒ ¶§±îÁö + Á¤ÁöÇÑ´Ù.</p> + + <div class="example"><pre>/67: accept(3, 0x001FEB74, 0x001FEB94, 1) (sleeping...)</pre></div> + + <p>±×µ¿¾È ¿¬°á´ë±â ¾²·¹µå´Â ¿¬°áÀ» (¸ðµç worker°¡ ÀÛ¾÷ÁßÀ̸é + ¿¬°á´ë±â ¾²·¹µå¸¦ ¸ØÃß´Â worker MPMÀÇ È帧Á¦¾î ±â´É¿¡ µû¶ó) + worker ¾²·¹µå¿¡ ÇÒ´çÇÏÀÚ¸¶ÀÚ ´Ù¸¥ ¿¬°áÀ» ¹Þ¾ÆµéÀÏ ¼ö ÀÖ´Ù. + ÀÌ ±â·Ï¿¡´Â ³ª¿ÀÁö ¾ÊÁö¸¸, worker ¾²·¹µå°¡ ¹æ±Ý ¹ÞÀº ¿¬°áÀ» + ó¸®ÇÏ´Â µ¿¾È ´ÙÀ½ <code>accept(2)</code>°¡ (¿äûÀÌ ¸Å¿ì + ¸¹Àº °æ¿ì Ç×»ó) ÀϾ ¼ö ÀÖ´Ù.</p> + + </div></div> +<div class="bottomlang"> +<p><span>°¡´ÉÇÑ ¾ð¾î: </span><a href="../en/misc/perf-tuning.html" hreflang="en" rel="alternate" title="English"> en </a> | +<a href="../fr/misc/perf-tuning.html" hreflang="fr" rel="alternate" title="Français"> fr </a> | +<a href="../ko/misc/perf-tuning.html" title="Korean"> ko </a> | +<a href="../tr/misc/perf-tuning.html" hreflang="tr" rel="alternate" title="Türkçe"> tr </a></p> +</div><div class="top"><a href="#page-header"><img src="../images/up.gif" alt="top" /></a></div><div class="section"><h2><a id="comments_section" name="comments_section">Comments</a></h2><div class="warning"><strong>Notice:</strong><br />This is not a Q&A section. 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