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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>Computing Threshold Statistics for Baselines</title> <meta name="generator" content="Oracle DARB XHTML Converter (Mode = ohj/ohw) - Version 5.1.1 Build 005" /> <meta name="date" content="2009-05-27T15:13:2Z" /> <meta name="robots" content="noarchive" /> <meta name="doctitle" content="Computing Threshold Statistics for Baselines" /> <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_degrade005.htm" title="Previous" type="text/html" /> <link rel="next" href="tdppt_degrade007.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_degrade005.htm"><img src="./dcommon/gifs/leftnav.gif" alt="Previous" /><br /> <span class="icon">Previous</span></a> </td> <td align="center"><a href="tdppt_degrade007.htm"><img src="./dcommon/gifs/rightnav.gif" alt="Next" /><br /> <span class="icon">Next</span></a></td> </tr> </table> <p><a id="CACDAEHC" name="CACDAEHC"></a><a id="TDPPT235" name="TDPPT235"></a></p> <div class="sect2"><!-- infolevel="all" infotype="General" --> <h1>Computing Threshold Statistics for Baselines</h1> <a name="BEGIN" id="BEGIN"></a> <p><a id="sthref216" name="sthref216"></a>Computing threshold statistics for baselines enables you to graphically display the computed statistics in the charts on the Performance page.</p> <p class="orderedlisttitle">To compute threshold statistics for baselines: </p> <ol> <li> <p>From the Database Home page, click <span class="bold">Server</span>.</p> <p>The Server page appears.</p> </li> <li> <p>Under Statistics Management, click <img src="shortcut.png" alt="callback" border="0" /><a href="javascript:void(0);" onclick="redirectEMpage('AWR_BASELINES_MAIN');"><span class="bold">AWR Baselines</span></a>.</p> <p>The AWR Baselines page appears with a list of existing baselines displayed.</p> </li> <li> <p>Select the baseline for which you want to compute statistics.</p> <p>Select a baseline that does not already have computed statistics. These baselines are identified by No in the Statistics Computed column.</p> </li> <li> <p>From the Actions list, select <span class="bold">Schedule Statistics Computation</span>, and then click <span class="bold">Go</span>.</p> <p>The Compute Threshold Statistics page appears.</p> </li> <li> <p>In the <span class="bold">Name</span> field, enter a name for the task.</p> <p>Alternatively, you can choose to use the system-generated name.</p> </li> <li> <p>In the <span class="bold">Description</span> field, enter a description for the task.</p> <p>Alternatively, you can choose to use the system-generated description.</p> </li> <li> <p>Under Start, do one of the following:</p> <ul> <li> <p>Select <span class="bold">Immediately</span> to run the task immediately after it has been submitted.</p> </li> <li> <p>Select <span class="bold">Later</span> to run the task at a later time as specified using the Date and Time fields.</p> </li> </ul> <p>This computation is resource-intensive, so you may want to schedule it to run during off-peak hours.</p> </li> <li> <p>Click <span class="bold">Submit</span>.</p> <p>The AWR Baselines page appears. A message informs you that statistics computation has been scheduled for the selected baseline.</p> </li> </ol> <div class="helpinfonotealso"> <h2>Related Topics</h2> <p><a href="tdppt_realtime023.htm#CBBIGBHH">Customizing the Database Performance Page</a> for information about displaying computed statistics on the Performance page</p> <p><a href="topicid:ADMQS010">Monitoring and Tuning the Database</a> for information about thresholds and how to manage them</p> <p><a href="tdppt_degrade001.htm#CACEAHIJ">Managing Baselines</a></p> </div> </div> <!-- class="sect2" --> <!-- 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. 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