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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=us-ascii" /> <meta http-equiv="Content-Style-Type" content="text/css" /> <meta http-equiv="Content-Script-Type" content="text/javascript" /> <title>Using the Oracle Performance Method</title> <meta name="generator" content="Oracle DARB XHTML Converter (Mode = ohj/ohw) - Version 5.1.1 Build 005" /> <meta name="date" content="2009-05-27T15:13:1Z" /> <meta name="robots" content="noarchive" /> <meta name="doctitle" content="Using the Oracle Performance Method" /> <meta name="relnum" content="11g Release 2 (11.2)" /> <meta name="partnum" content="E10822-01" /> <link rel="copyright" href="./dcommon/html/cpyr.htm" title="Copyright" type="text/html" /> <link rel="stylesheet" href="./dcommon/css/blafdoc.css" title="Oracle BLAFDoc" type="text/css" /> <link rel="contents" href="toc.htm" title="Contents" type="text/html" /> <link rel="prev" href="tdppt_method006.htm" title="Previous" type="text/html" /> <link rel="next" href="tdppt_method008.htm" title="Next" type="text/html" /> <script src="./callback.js" type="text/javascript"></script> <noscript>Your browser does not support JavaScript. This help page requires JavaScript to render correctly.</noscript> </head> <body> <div class="zz-skip-header"><a href="#BEGIN">Skip Headers</a></div> <table class="simple oac_no_warn" summary="" cellspacing="0" cellpadding="0" width="100%"> <col width="86%" /> <col width="*" /> <tr valign="bottom"> <td align="left"></td> <td align="center"><a href="tdppt_method006.htm"><img src="./dcommon/gifs/leftnav.gif" alt="Previous" /><br /> <span class="icon">Previous</span></a> </td> <td align="center"><a href="tdppt_method008.htm"><img src="./dcommon/gifs/rightnav.gif" alt="Next" /><br /> <span class="icon">Next</span></a></td> </tr> </table> <p><a id="CIHFFHBI" name="CIHFFHBI"></a><a id="TDPPT490" name="TDPPT490"></a></p> <div class="sect1"><!-- infolevel="all" infotype="General" --> <h1>Using the Oracle Performance Method</h1> <a name="BEGIN" id="BEGIN"></a> <p>Performance tuning using the Oracle performance method<a id="sthref30" name="sthref30"></a> is driven by identifying and eliminating bottlenecks in the database, and by developing efficient SQL statements. Database tuning is performed in two phases: proactively and reactively.</p> <p>In the proactive tuning phase, you must perform tuning tasks as part of your daily database maintenance routine, such as reviewing ADDM analysis and findings, monitoring the real-time performance of the database, and responding to alerts.</p> <p>In the reactive tuning phase, you must respond to issues reported by the users, such as performance problems that may occur for only a short duration of time, or performance degradation to the database over a period of time.</p> <p>SQL tuning is an iterative process to identify, tune, and improve the efficiency of high-load SQL statements.</p> <p>Applying the Oracle performance method involves the following:</p> <ul> <li> <p>Performing pre-tuning preparations, as described in <a href="tdppt_method008.htm#CIHBHFHG">"Preparing the Database for Tuning"</a></p> </li> <li> <p>Tuning the database proactively on a regular basis, as described in <a href="tdppt_method009.htm#CIHJFHBJ">"Tuning the Database Proactively"</a></p> </li> <li> <p>Tuning the database reactively when performance problems are reported by the users, as described in <a href="tdppt_method010.htm#CIHDAEBE">"Tuning the Database Reactively"</a></p> </li> <li> <p>Identifying, tuning, and optimizing high-load SQL statements, as described in <a href="tdppt_method011.htm#CIHJJADE">"Tuning SQL Statements"</a></p> </li> </ul> <p>To improve database performance, you must apply these principles iteratively.</p> <div class="helpinfonotealso"> <h2>Related Topics</h2> <p><a href="tdppt_method.htm#CIHIEGEC">Oracle Database Performance Method</a></p> </div> <!-- Start Footer --> <div class="footer"> <table class="simple oac_no_warn" summary="" cellspacing="0" cellpadding="0" width="100%"> <col width="86%" /> <col width="*" /> <tr> <td align="left"><span class="copyrightlogo">Copyright © 2007, 2009, Oracle and/or its affiliates. All rights reserved.</span><br /> <a href="./dcommon/html/cpyr.htm"><span class="copyrightlogo">Legal Notices</span></a></td> <td align="center"><a href="tdppt_method006.htm"><img src="./dcommon/gifs/leftnav.gif" alt="Previous" /><br /> <span class="icon">Previous</span></a> </td> <td align="center"><a href="tdppt_method008.htm"><img src="./dcommon/gifs/rightnav.gif" alt="Next" /><br /> <span class="icon">Next</span></a></td> </tr> </table> </div> <!-- class="footer" --></div> </body> </html>
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