58 lines
3.4 KiB
HTML
58 lines
3.4 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</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="rzaluperform"></a>
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<h4 id="rzaluperform">Performance considerations</h4>
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<p>The following are printer file performance considerations:</p>
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<ul>
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<li>For externally described printer files, the fewer the number of fields
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in a record, the faster the processing of that record. Also, by putting several
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lines of text within a record instead of each line as a separate record, system
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overhead involved with the processing of each record is reduced.</li>
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<li>When coding the DDS for externally described printer files, define the
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fields in sequential order. The output is not changed if fields are not defined
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in sequential order, but the extra travel time of the printer head might be
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noticeable.</li>
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<li>For externally described printer files, specify a specific font or FONT(*CPI)
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on the CRTPRTF, CHGPRTF, or OVRPRTF command instead of FONT(*DEVD). This helps
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keep the data stream as small as possible.</li>
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<li>If a spooled file is intended to be printed on an IPDS™ printer configured
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AFP(*NO), specify DEVTYPE(*IPDS) on the CRTPRTF, CHGPRTF, or OVRPRTF command
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to avoid the extra system processing required to transform the data stream
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from SCS to IPDS.</li>
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<li>If a spooled file is intended to be printed on an IPDS printer configured
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AFP(*YES), specify DEVTYPE(*AFPDS) on the CRTPRTF, CHGPRTF, or OVRPRTF command.</li>
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<li>When printing on an IPDS printer configured AFP(*YES), large spooled files
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begin to print sooner if the print while convert (PRTCVT) parameter on the
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printer device description is set to *YES. However, some printing might occur
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before the syntax of the entire spooled file is checked. A data stream error
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might be found after printing has started. This causes printing to end. If
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you want all data stream syntax checking to complete before the spooled file
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starts printing, set the print while convert (PRTCVT) parameter of the printer
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device description to *NO.</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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