64 lines
3.5 KiB
HTML
64 lines
3.5 KiB
HTML
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<?xml version="1.0" encoding="utf-8"?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
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"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml" lang="en-US" xml:lang="en-us">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<meta name="dc.language" scheme="rfc1766" content="en-us" />
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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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<meta name="dc.date" scheme="iso8601" content="2005-09-06" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 1998, 2006" />
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<meta name="security" content="public" />
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<meta name="Robots" content="index,follow"/>
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<meta http-equiv="PICS-Label" content='(PICS-1.1 "http://www.icra.org/ratingsv02.html" l gen true r (cz 1 lz 1 nz 1 oz 1 vz 1) "http://www.rsac.org/ratingsv01.html" l gen true r (n 0 s 0 v 0 l 0) "http://www.classify.org/safesurf/" l gen true r (SS~~000 1))' />
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<title>Performance considerations for Common Programming Interface Communications</title>
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<link rel="stylesheet" type="text/css" href="ibmidwb.css" />
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<link rel="stylesheet" type="text/css" href="ic.css" />
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</head>
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<body>
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<a id="Top_Of_Page" name="Top_Of_Page"></a><!-- Java sync-link -->
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<script language = "Javascript" src = "../rzahg/synch.js" type="text/javascript"></script>
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<a name="rzajtper-cpicpi"></a>
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<h4 id="rzajtper-cpicpi">Performance considerations for Common Programming Interface Communications</h4>
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<p>You can use Common Programming Interface Communications (CPI Communications)
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to write application programs that you want to communicate with advanced program-to-communications
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(APPC). The interface makes use of the System Network Architecture (SNA)
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LU (logical unit) 6.2 architecture to do the following:</p>
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<ul>
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<li>Establish a conversation</li>
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<li>Send and receive data</li>
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<li>Exchange control information</li>
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<li>End a conversation</li>
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<li>Notify a partner program of errors.</li></ul>
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<p>Intersystem communications feature (ICF) and CPI Communications programs
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have similar performances for small data transfers.</p>
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<p>To optimize CPI Communications application programs, do the following:</p>
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<ul>
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<li>Minimize the use of flush and confirm.</li>
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<li>Receive a compile record and parse it in your buffer.</li>
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<li>Do not use multiple receive calls to receive a single record.</li>
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<li>Use Request-to-Send only when necessary.</li></ul>
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<p>To add or change communications entries to get the system set up for CPI
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Communications, do the following:</p>
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<ol type="1">
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<li>Type appropriate command on the iSeries™ system command line and press F4.
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<ul>
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<li>Add Communications Entry (ADDCMNE)</li>
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<li>Remove Communications Entry (RMVCMNE)</li>
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<li>Change Communications Entry (CHGCMNE)</li></ul></li>
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<li>Use the online help information to change, add, or remove parameter values.</li>
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<li>Press Enter. The communications entries are added, changed or removed.</li></ol>
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<p>For more information about configuring CPI Communications, see:</p>
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<ul>
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<li><a href="rzajtrzajtperappcin.htm#rzajtperappc-in">Application programming interface (API) performance considerations</a></li>
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<li><a href="../books/sc415455.pdf" target="_blank">CICS/400® Administration and Operations Guide</a>
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<img src="wbpdf.gif" alt="Link to PDF" /></li></ul>
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<a id="Bot_Of_Page" name="Bot_Of_Page"></a>
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</body>
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</html>
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