70 lines
4.9 KiB
HTML
70 lines
4.9 KiB
HTML
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PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<meta name="DC.Type" content="task" />
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<meta name="DC.Title" content="Gathering performance data for benchmark" />
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<meta name="abstract" content="Establish system benchmarks before you install a new version of the operating system or make a major system configuration change such as adding a new software application." />
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<meta name="DC.Relation" scheme="URI" content="gatheringperformancedatawithcollectionservices.htm" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 2004, 2006" />
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<title>Gathering performance data for benchmark</title>
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</head>
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<body id="gatherperfdata"><a name="gatherperfdata"><!-- --></a>
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<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">Gathering performance data for benchmark</h1>
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<div><p><span>Establish system benchmarks before you install a new version
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of the operating system or make a major system configuration change such as
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adding a new software application.</span></p>
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<div class="section"> <p>Accurate system benchmarks allow you to compare system performance
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before and after the upgrade. A valid comparison allows you to accurately
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assess any performance improvement as well as isolate any changes to the system
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that can prevent optimal performance.</p>
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<p>Collection Services can collect
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sample data for a wide range of system resources. Collection Services stores
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sample performance data in a collection object (*MGTCOL) on your system.
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Minimally, benchmarks should include data from current and representative
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collection objects. This can require that Collection Services run long enough
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to collect representative data. Representative data should include all periods
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of activity (both peak and off-peak hours), all applications, and all normal
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activities performed on a system. Additionally, you might require more detailed
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benchmark information to identify how critical applications, transactions,
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and jobs are affected by the system configuration change. </p>
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<p>Several tools
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are available for collecting detailed information about application performance.
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However, these tools can require specialized skills and could adversely affect
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system performance. For details about collecting different types of performance
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data, refer to <a href="../rzahx/rzahxresearchparent.htm">Research a performance problem</a> in the <span class="keyword">iSeries™ Information Center</span>.</p>
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</div>
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</div>
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<div>
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<ul class="ullinks">
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<li class="ulchildlink"><strong><a href="gatheringperformancedatawithcollectionservices.htm">Gathering performance data with Collection Services</a></strong><br />
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If you are not running Collection Services, or your collection objects are not current, start Collection Services in any of the following ways:</li>
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<li class="ulchildlink"><strong><a href="analyzingperformancedata.htm">Analyzing performance data</a></strong><br />
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To analyze the performance data, you must either export collection object data into the performance database files (if Collection Services has not already done so) or convert the database files created from the prior release to the current release format.</li>
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</ul>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="prepareswupgrade.htm" title="To prepare the server for software installation, review and perform the preparation tasks that pertain to your server.">Preparing the server for software upgrade or replacement</a></div>
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</div>
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</div>
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</body>
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