78 lines
2.5 KiB
HTML
78 lines
2.5 KiB
HTML
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<HTML>
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<HEAD><META http-equiv="Content-Type" content="text/html; charset=utf-8">
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<TITLE>The Performance Adjuster</TITLE>
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<meta name="Copyright" content="Copyright (c) 2004 by IBM Corporation">
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<!-- All rights reserved. Licensed Materials Property of IBM -->
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<!-- US Government Users Restricted Rights -->
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<!-- Use, duplication or disclosure restricted by -->
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<!-- GSA ADP Schedule Contract with IBM Corp. -->
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<LINK rel="stylesheet" type="text/css" href="../rzahg/ic.css">
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</HEAD>
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<BODY>
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<!-- Java sync-link -->
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<SCRIPT LANGUAGE="Javascript" SRC="../rzahg/synch.js" TYPE="text/javascript"></SCRIPT>
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<img height="38" src="mastertitlesmall.gif" width="291" alt="Experience Report">
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<A
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NAME="Top_Of_Page"></A>
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<table width="100%">
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<TR>
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<TD>
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<A NAME="HDRPRFADJ"></A>
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<H2>The Performance Adjuster (QPFRADJ)</H2>
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<P>The iSeries<SUP>(TM)</SUP> server has the ability to automatically manage the shared
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memory pools without any user interaction. This function is controlled by the
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performance adjustment system value, <A HREF=
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"../rzakz/rzakzqpfradj.htm">
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QPFRADJ</A>. When this system value
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is set to '2' or '3,' the system periodically checks the performance of
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all the active shared pools and adjusts or rearranges the storage and activity levels
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as needed. This function is active by default (the shipped value of QPFRADJ is '2' which
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means 'Adjustment at IPL and automatic adjustment'). This experience report
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explains how the user-defined settings on the <A HREF=
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"../cl/wrkshrpool.htm">Work with Shared Pools (WRKSHRPOOL)</A> display affect the performance adjuster algorithm, and
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gives examples of how to tailor them for your environment.</P>
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<P>The following sections contain additional information about system tuning with the QPFRADJ
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performance adjuster:</P>
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<BLOCKQUOTE>
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<P><STRONG>WRKSHRPOOL tuning data</STRONG>
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<P><STRONG>Tuning interval</STRONG>
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</P>
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<P><STRONG>Case studies</STRONG>
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</P>
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</BLOCKQUOTE>
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</TD>
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<td><img src="icblank.gif" alt="">
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</td>
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<td VALIGN=top nowrap="">
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<FONT SIZE=2>
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<b>View this report</b><br>
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<img src="filetype.gif" alt=""><a href="adjuster.pdf" target="_blank">PDF version</a> (142 KB) <br>(Web only)</font>
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<P><FONT SIZE=2><b>Author</b><br>
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Angela Newton<br>
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<br>
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</font></P>
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<P><FONT SIZE=2><b>Published date</b><br>
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May 2004</font></P>
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</td>
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</TR>
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</table>
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</BODY>
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</HTML>
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