SEQOPT parameter - Revision history

DCameron: /* Description */

2017-05-30T09:55:06Z

Description

← Older revision		Revision as of 09:55, 30 May 2017
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	The prefetch feature can produce performance improvements for applications containing <var>[[Record_loops#FOR_EACH_RECORD_statement\|FOR EACH RECORD]]</var> statements. The prefetch feature is also described in [[Performance monitoring and tuning#Prefetch feature\|Prefetch feature]].</p>		The prefetch feature can produce performance improvements for applications containing <var>[[Record_loops#FOR_EACH_RECORD_statement\|FOR EACH RECORD]]</var> statements. The prefetch feature is also described in [[Performance monitoring and tuning#Prefetch feature\|Prefetch feature]].</p>
	<p>		<p>
	The prefetch feature can also be controlled with the <var>RESET</var> command issued by a user having system manager privileges.</p>		The prefetch feature can also be controlled with the <var>[[RESET_command\|RESET]]</var> command issued by a user having system manager privileges.</p>
	<p>		<p>
	Use of the prefetch feature requires that the <var>[[NUMBUFG parameter\|NUMBUFG]]</var> or the <var>[[MAXBUF parameter\|MAXBUF]]</var> parameter be set large enough to accommodate the look-ahead reads. Without this setting, performance might worsen.		Use of the prefetch feature requires that the <var>[[NUMBUFG parameter\|NUMBUFG]]</var> or the <var>[[MAXBUF parameter\|MAXBUF]]</var> parameter be set large enough to accommodate the look-ahead reads. Without this setting, performance might worsen.

DCameron: /* Description */

2017-05-30T09:54:25Z

Description

← Older revision		Revision as of 09:54, 30 May 2017
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	<var>SEQOPT</var> must be either zero or 1. If the default value of zero is used, the prefetch feature is disabled. If a value of 1 is specified, the prefetch feature is enabled. </p>		<var>SEQOPT</var> must be either zero or 1. If the default value of zero is used, the prefetch feature is disabled. If a value of 1 is specified, the prefetch feature is enabled. </p>
	<p>		<p>
	The prefetch feature can produce performance improvements for applications containing <var>FOR EACH RECORD</var> statements. The prefetch feature is also described in [[Performance monitoring and tuning#Prefetch feature\|Prefetch feature]].</p>		The prefetch feature can produce performance improvements for applications containing <var>[[Record_loops#FOR_EACH_RECORD_statement\|FOR EACH RECORD]]</var> statements. The prefetch feature is also described in [[Performance monitoring and tuning#Prefetch feature\|Prefetch feature]].</p>
	<p>		<p>
	The prefetch feature can also be controlled with the <var>RESET</var> command issued by a user having system manager privileges.</p>		The prefetch feature can also be controlled with the <var>RESET</var> command issued by a user having system manager privileges.</p>

DCameron: /* Summary */

2017-05-25T12:31:04Z

Summary

← Older revision		Revision as of 12:31, 25 May 2017
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	<dd>System		<dd>System
	<dt>Where set		<dt>Where set
	<dd>On User 0's parameter line		<dd>On User 0's parameter line, or reset by System Manager
	<dt>Related products		<dt>Related products
	<dd>All		<dd>All
	<dt>Introduced		<dt>Introduced
	<dd><var class="product">Model 204 V6.1</var> or earlier		<dd><var class="product">Model 204 V2.1</var> or earlier
	</dl>		</dl>

JAL: /* Description */ remove MAXBUF formula -- let user link to MAXBUF page

2016-08-25T23:21:38Z

Description: remove MAXBUF formula -- let user link to MAXBUF page

← Older revision		Revision as of 23:21, 25 August 2016
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	The prefetch feature can also be controlled with the <var>RESET</var> command issued by a user having system manager privileges.</p>		The prefetch feature can also be controlled with the <var>RESET</var> command issued by a user having system manager privileges.</p>
	<p>		<p>
	Use of the prefetch feature requires that the <var>[[NUMBUFG parameter\|NUMBUFG]]</var> or the <var>[[MAXBUF parameter\|MAXBUF]]</var> parameter be set large enough to accommodate the look-ahead reads. Without this setting, performance might worsen. ~~The specification for <var>MAXBUF</var> is calculated by the following formula: </p>~~		Use of the prefetch feature requires that the <var>[[NUMBUFG parameter\|NUMBUFG]]</var> or the <var>[[MAXBUF parameter\|MAXBUF]]</var> parameter be set large enough to accommodate the look-ahead reads. Without this setting, performance might worsen.
	~~<p class="code">MAXBUF = NUSERS * (4 + 2 * (Maximum FOR EACH RECORD loop nest level)~~
	</p>		</p>

	[[Category:System parameters]]		[[Category:System parameters]]
	[[Category:Parameters]]		[[Category:Parameters]]

JAL: /* Description */ mention NUMBUFG

2016-08-25T21:41:31Z

Description: mention NUMBUFG

← Older revision		Revision as of 21:41, 25 August 2016
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	The prefetch feature can also be controlled with the <var>RESET</var> command issued by a user having system manager privileges.</p>		The prefetch feature can also be controlled with the <var>RESET</var> command issued by a user having system manager privileges.</p>
	<p>		<p>
	Use of the prefetch feature requires that the <var>[[MAXBUF parameter\|MAXBUF]]</var> parameter be set large enough to accommodate the look-ahead reads. Without this setting, performance might worsen. The specification for ~~the~~ <var>MAXBUF</var> ~~parameter~~ is calculated by the following formula: </p>		Use of the prefetch feature requires that the <var>[[NUMBUFG parameter\|NUMBUFG]]</var> or the <var>[[MAXBUF parameter\|MAXBUF]]</var> parameter be set large enough to accommodate the look-ahead reads. Without this setting, performance might worsen. The specification for <var>MAXBUF</var> is calculated by the following formula: </p>
	<p class="code">MAXBUF = NUSERS * (4 + 2 * (Maximum FOR EACH RECORD loop nest level)		<p class="code">MAXBUF = NUSERS * (4 + 2 * (Maximum FOR EACH RECORD loop nest level)
	</p>		</p>

JAL: remove Sys Man guide

2014-10-30T23:05:45Z

remove Sys Man guide

← Older revision		Revision as of 23:05, 30 October 2014
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	<var>SEQOPT</var> must be either zero or 1. If the default value of zero is used, the prefetch feature is disabled. If a value of 1 is specified, the prefetch feature is enabled. </p>		<var>SEQOPT</var> must be either zero or 1. If the default value of zero is used, the prefetch feature is disabled. If a value of 1 is specified, the prefetch feature is enabled. </p>
	<p>		<p>
	The prefetch feature can produce performance improvements for applications containing <var>FOR EACH RECORD</var> statements. The prefetch feature is also described in ~~the <var class="book">~~[~~http://docs.rocketsoftware.com/nxt/gateway.dll/RKBnew556/model%20204/v7.4/m204_v7r4_system_manager.pdf Rocket Model 204 System Manager's Guide~~]~~</var>~~.</p>		The prefetch feature can produce performance improvements for applications containing <var>FOR EACH RECORD</var> statements. The prefetch feature is also described in [[Performance monitoring and tuning#Prefetch feature\|Prefetch feature]].</p>
	<p>		<p>
	The prefetch feature can also be controlled with the <var>RESET</var> command issued by a user having system manager privileges.</p>		The prefetch feature can also be controlled with the <var>RESET</var> command issued by a user having system manager privileges.</p>

JAL at 17:28, 16 April 2014

2014-04-16T17:28:12Z

← Older revision		Revision as of 17:28, 16 April 2014
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	<dd><var class="product">Model 204 V6.1</var> or earlier		<dd><var class="product">Model 204 V6.1</var> or earlier
	</dl>		</dl>

	==Description==		==Description==
	<p>The ~~option for the~~ prefetch (look-ahead read) feature</p>		<p>
	<p>SEQOPT must be either zero or 1. If the default value of zero is used, the prefetch feature is disabled. If a value of 1 is specified, the prefetch feature is enabled. </p>		Enables or disables the [[Record_loops#The prefetch (look-ahead_read) feature\|prefetch (look-ahead read) feature]].</p>
	<p>The prefetch feature can produce performance improvements for applications containing FOR EACH RECORD statements. The prefetch feature is described ~~in more detail~~ in the <var>~~Model 204 User Language Manual<~~/~~var> and the <var>~~Model~~ ~~204 System Manager's Guide</var>.</p>		<p>
	<p>The prefetch feature can also be controlled with the RESET command issued by a user having system manager privileges.</p>		<var>SEQOPT</var> must be either zero or 1. If the default value of zero is used, the prefetch feature is disabled. If a value of 1 is specified, the prefetch feature is enabled. </p>
	<p>Use of the prefetch feature requires that the MAXBUF parameter be set large enough to accommodate the look-ahead reads. Without this setting, performance might worsen. The specification for the MAXBUF parameter is calculated by the following formula: </p>		<p>
			The prefetch feature can produce performance improvements for applications containing <var>FOR EACH RECORD</var> statements. The prefetch feature is also described in the <var class="book">[http://docs.rocketsoftware.com/nxt/gateway.dll/RKBnew556/model%20204/v7.4/m204_v7r4_system_manager.pdf Rocket Model 204 System Manager's Guide]</var>.</p>
			<p>
			The prefetch feature can also be controlled with the <var>RESET</var> command issued by a user having system manager privileges.</p>
			<p>
			Use of the prefetch feature requires that the <var>[[MAXBUF parameter\|MAXBUF]]</var> parameter be set large enough to accommodate the look-ahead reads. Without this setting, performance might worsen. The specification for the <var>MAXBUF</var> parameter is calculated by the following formula: </p>
	<p class="code">MAXBUF = NUSERS * (4 + 2 * (Maximum FOR EACH RECORD loop nest level)		<p class="code">MAXBUF = NUSERS * (4 + 2 * (Maximum FOR EACH RECORD loop nest level)
	</p>		</p>

	[[Category:System parameters]]		[[Category:System parameters]]
	[[Category:Parameters]]		[[Category:Parameters]]

DmeWiccan: Automatically generated page update

2013-08-27T16:43:47Z

Automatically generated page update

← Older revision		Revision as of 16:43, 27 August 2013
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			{{Template:SEQOPT parameter subtitle}}
	==Summary==		==Summary==
	<dl>		<dl>

DmeWiccan: Automatically generated page update

2013-04-23T01:51:22Z

Automatically generated page update

← Older revision		Revision as of 01:51, 23 April 2013
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	<p class="code">MAXBUF = NUSERS * (4 + 2 * (Maximum FOR EACH RECORD loop nest level)		<p class="code">MAXBUF = NUSERS * (4 + 2 * (Maximum FOR EACH RECORD loop nest level)
	</p>		</p>
	[[Category:System ~~Parameters~~]]		[[Category:System parameters]]
	[[Category:Parameters]]		[[Category:Parameters]]

Dme: Undo revision 56933 by DmeWiccan (talk)

2013-04-19T15:06:59Z

Undo revision 56933 by DmeWiccan (talk)

← Older revision		Revision as of 15:06, 19 April 2013
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	<p class="code">MAXBUF = NUSERS * (4 + 2 * (Maximum FOR EACH RECORD loop nest level)		<p class="code">MAXBUF = NUSERS * (4 + 2 * (Maximum FOR EACH RECORD loop nest level)
	</p>		</p>
	[[Category:System ~~parameters~~]]		[[Category:System Parameters]]
	[[Category:Parameters]]		[[Category:Parameters]]