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<?xml-stylesheet type="text/xsl" href="https://communities.bentley.com/cfs-file/__key/system/syndication/rss.xsl" media="screen"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/"><channel><title>Turning off Dynamic Sampling will Improve the Performance of APM</title><link>https://communities.bentley.com/products/assetwise/asset_performance_management/w/wiki/38122/turning-off-dynamic-sampling-will-improve-the-performance-of-apm</link><description /><dc:language>en-US</dc:language><generator>Telligent Community 12</generator><item><title>Turning off Dynamic Sampling will Improve the Performance of APM</title><link>https://communities.bentley.com/products/assetwise/asset_performance_management/w/wiki/38122/turning-off-dynamic-sampling-will-improve-the-performance-of-apm</link><pubDate>Mon, 02 Apr 2018 18:03:28 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:154809d5-8940-49ed-8e4e-b18f83703c1f</guid><dc:creator>Diana Marin</dc:creator><comments>https://communities.bentley.com/products/assetwise/asset_performance_management/w/wiki/38122/turning-off-dynamic-sampling-will-improve-the-performance-of-apm#comments</comments><description>Current Revision posted to Asset Reliability | AssetWise APM Wiki by Diana Marin on 4/2/2018 6:03:28 PM&lt;br /&gt;
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&lt;td style="text-align:right;"&gt;&lt;strong&gt;&amp;nbsp;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Product(s):&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;AssetWise APM Foundation&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&amp;nbsp;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Version(s):&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;7.x&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&amp;nbsp;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Environment:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Oracle&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&amp;nbsp;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Area:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;N/A&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;&lt;/tr&gt;
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&lt;td style="text-align:right;"&gt;&lt;strong&gt;&amp;nbsp;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Subarea:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;N\A&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/tbody&gt;&lt;/table&gt;
&lt;p&gt;&lt;/p&gt;
&lt;h1&gt;Problem&lt;/h1&gt;
&lt;p&gt;Performance is slow in Ivara APM when running against an Oracle database.&lt;/p&gt;&lt;br /&gt;&lt;br /&gt;
&lt;h1&gt;Solution&lt;/h1&gt;
&lt;p&gt;Turn off Dynamic Sampling. This can be done with the script below.&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;div class="" style="margin:0in 0in 0pt;"&gt;&lt;font face="Calibri"&gt;alter system set optimizer_dynamic_sampling=0 scope=both;&lt;/font&gt;&lt;/div&gt;&lt;br /&gt;&lt;br /&gt;&lt;br /&gt;&lt;img style="border-left-width:0px;border-right-width:0px;border-bottom-width:0px;border-top-width:0px;" alt=" " src="http://communities.bentley.com/cfs-file.ashx/__key/communityserver-components-sitefiles/TSG-Logo.png" width="189" height="60" /&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: AssetWise APM, Assetwise APM Foundation, 7.x, en&lt;/div&gt;
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