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	<title>Comments on: How to Find Invisible Performance Problems</title>
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	<link>http://blog.dynatrace.com/2009/01/07/how-to-find-invisible-performance-problems/</link>
	<description>dynaTrace Blog on Performance, Scalabilty and Architecture - Java and .NET  Application Performance Management</description>
	<lastBuildDate>Thu, 02 Sep 2010 08:57:48 +0000</lastBuildDate>
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		<title>By: headphones</title>
		<link>http://blog.dynatrace.com/2009/01/07/how-to-find-invisible-performance-problems/comment-page-1/#comment-18123</link>
		<dc:creator>headphones</dc:creator>
		<pubDate>Sat, 07 Aug 2010 04:09:15 +0000</pubDate>
		<guid isPermaLink="false">http://blog.dynatrace.com/?p=256#comment-18123</guid>
		<description>i think you have taken this new feature in a wrong way , it has its plus points too , for example from a marketer point of view you will get much better results from paid advertising as in google adwords you will be able to focus to individual who are really looking for your products hence each click through will deliver more results because then the user demographics can be leveraged.</description>
		<content:encoded><![CDATA[<p>i think you have taken this new feature in a wrong way , it has its plus points too , for example from a marketer point of view you will get much better results from paid advertising as in google adwords you will be able to focus to individual who are really looking for your products hence each click through will deliver more results because then the user demographics can be leveraged.</p>
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		<title>By: Norris Ewelike</title>
		<link>http://blog.dynatrace.com/2009/01/07/how-to-find-invisible-performance-problems/comment-page-1/#comment-16651</link>
		<dc:creator>Norris Ewelike</dc:creator>
		<pubDate>Wed, 23 Jun 2010 08:14:06 +0000</pubDate>
		<guid isPermaLink="false">http://blog.dynatrace.com/?p=256#comment-16651</guid>
		<description>It&#039;s interesting to see this occurring for other people.

We had a similar problem a while ago where some users reported an issue with speed that we weren&#039;t able to track down.  We checked the database locking, the inter-process comms and even followed a few false positives (like all the users seemed to be viewing DVDs or Books).

In the end we found out the common item was that a user was opening a bunch of pages at the same time.  This allowed us to track it down to the price comparison code - which was checking the user&#039;s (shared) session state and locking it.  

It&#039;s probably a really good example of why user performance reports need lots of information (which is hard for non-techies to do).  Luckily we get a lot of techies browsing for cheap computing / IT books so some of the reporters were really helpful.

Norris - http://ewelike.com</description>
		<content:encoded><![CDATA[<p>It&#8217;s interesting to see this occurring for other people.</p>
<p>We had a similar problem a while ago where some users reported an issue with speed that we weren&#8217;t able to track down.  We checked the database locking, the inter-process comms and even followed a few false positives (like all the users seemed to be viewing DVDs or Books).</p>
<p>In the end we found out the common item was that a user was opening a bunch of pages at the same time.  This allowed us to track it down to the price comparison code &#8211; which was checking the user&#8217;s (shared) session state and locking it.  </p>
<p>It&#8217;s probably a really good example of why user performance reports need lots of information (which is hard for non-techies to do).  Luckily we get a lot of techies browsing for cheap computing / IT books so some of the reporters were really helpful.</p>
<p>Norris &#8211; <a href="http://ewelike.com" rel="nofollow"></a><a href='http://ewelike.com'>http://ewelike.com</a></p>
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	<item>
		<title>By: wangrongjiao</title>
		<link>http://blog.dynatrace.com/2009/01/07/how-to-find-invisible-performance-problems/comment-page-1/#comment-16443</link>
		<dc:creator>wangrongjiao</dc:creator>
		<pubDate>Tue, 15 Jun 2010 04:02:06 +0000</pubDate>
		<guid isPermaLink="false">http://blog.dynatrace.com/?p=256#comment-16443</guid>
		<description>TV Weekly described the budding actress,  &lt;a href=&quot;http://www.linksoflondonstockist.com/links-of-london-bracelet-and-necklace-on-sale/&quot;&gt;links of london rings&lt;/a&gt; came to Hong Kong from Suzhou, Carrie Underwood, at first as not good CantoneseTraining can not enter the artists, but 
&lt;a href=&quot;http://www.linksoflondonstockist.com/how-to-choose-your-own-links-of-london-earrings-2/&quot;&gt;links of london&lt;/a&gt;  she is still learning, after all the success!</description>
		<content:encoded><![CDATA[<p>TV Weekly described the budding actress,  <a href="http://www.linksoflondonstockist.com/links-of-london-bracelet-and-necklace-on-sale/">links of london rings</a> came to Hong Kong from Suzhou, Carrie Underwood, at first as not good CantoneseTraining can not enter the artists, but<br />
<a href="http://www.linksoflondonstockist.com/how-to-choose-your-own-links-of-london-earrings-2/">links of london</a>  she is still learning, after all the success!</p>
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	<item>
		<title>By: wangrongjiao</title>
		<link>http://blog.dynatrace.com/2009/01/07/how-to-find-invisible-performance-problems/comment-page-1/#comment-16216</link>
		<dc:creator>wangrongjiao</dc:creator>
		<pubDate>Sun, 06 Jun 2010 01:38:06 +0000</pubDate>
		<guid isPermaLink="false">http://blog.dynatrace.com/?p=256#comment-16216</guid>
		<description>We have too much time talking about love, there  &lt;a href=&quot;http://www.fleetwoodmac.com/blog/xihayizu123/links-london-%E2%80%93sweetie-bracelet-%E2%80%9Cwrist-candy%E2%80%9D-enjoy-beauty&quot;&gt;links of london charms&lt;/a&gt;  is too little time in the feelings of love, even love of the often  &lt;a href=&quot;http://www.fleetwoodmac.com/blog/xihayizu123/elegant-woman-well-used-links-london-jewelry&quot;&gt;links of london bracelet&lt;/a&gt; overlooked on some &quot;gratitude. pandora charms wholesale&quot; If you have Pandora,</description>
		<content:encoded><![CDATA[<p>We have too much time talking about love, there  <a href="http://www.fleetwoodmac.com/blog/xihayizu123/links-london-%E2%80%93sweetie-bracelet-%E2%80%9Cwrist-candy%E2%80%9D-enjoy-beauty">links of london charms</a>  is too little time in the feelings of love, even love of the often  <a href="http://www.fleetwoodmac.com/blog/xihayizu123/elegant-woman-well-used-links-london-jewelry">links of london bracelet</a> overlooked on some &#8220;gratitude. pandora charms wholesale&#8221; If you have Pandora,</p>
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	<item>
		<title>By: Links of London Jewellery</title>
		<link>http://blog.dynatrace.com/2009/01/07/how-to-find-invisible-performance-problems/comment-page-1/#comment-15258</link>
		<dc:creator>Links of London Jewellery</dc:creator>
		<pubDate>Tue, 11 May 2010 08:28:43 +0000</pubDate>
		<guid isPermaLink="false">http://blog.dynatrace.com/?p=256#comment-15258</guid>
		<description>Well,it often happens that people with good eyesight fail to see what is right in front of them.They have too much to observe,I suppose,whereas those who cannot see take in what registers most telling on their remaining senses.</description>
		<content:encoded><![CDATA[<p>Well,it often happens that people with good eyesight fail to see what is right in front of them.They have too much to observe,I suppose,whereas those who cannot see take in what registers most telling on their remaining senses.</p>
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	<item>
		<title>By: Performance, Scalability and Architecture - Java and .NET Application Performance Management (dynaTrace Blog) &#187; Performance Management in Continuous Integration</title>
		<link>http://blog.dynatrace.com/2009/01/07/how-to-find-invisible-performance-problems/comment-page-1/#comment-2878</link>
		<dc:creator>Performance, Scalability and Architecture - Java and .NET Application Performance Management (dynaTrace Blog) &#187; Performance Management in Continuous Integration</dc:creator>
		<pubDate>Tue, 05 May 2009 09:55:43 +0000</pubDate>
		<guid isPermaLink="false">http://blog.dynatrace.com/?p=256#comment-2878</guid>
		<description>[...] Validation is not sticking to response times but dynamic application behavior. As I explained in an earlier post the dynamic behavior of the application unveils potential performance problems already before they [...]</description>
		<content:encoded><![CDATA[<p>[...] Validation is not sticking to response times but dynamic application behavior. As I explained in an earlier post the dynamic behavior of the application unveils potential performance problems already before they [...]</p>
]]></content:encoded>
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	<item>
		<title>By: Kris</title>
		<link>http://blog.dynatrace.com/2009/01/07/how-to-find-invisible-performance-problems/comment-page-1/#comment-1472</link>
		<dc:creator>Kris</dc:creator>
		<pubDate>Mon, 16 Mar 2009 15:01:00 +0000</pubDate>
		<guid isPermaLink="false">http://blog.dynatrace.com/?p=256#comment-1472</guid>
		<description>Hello,

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Its just started and we are collecting the best found on the net! We will be delighted to have you in the sweebs listings.

Regards
Kris</description>
		<content:encoded><![CDATA[<p>Hello,</p>
<p>Please add your site at <a href="http://www.sweebs.com" rel="nofollow"></a><a href='http://www.sweebs.com'>http://www.sweebs.com</a>. Sweebs.com is a place where other people can find you among the best sites on the internet!<br />
Its just started and we are collecting the best found on the net! We will be delighted to have you in the sweebs listings.</p>
<p>Regards<br />
Kris</p>
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	</item>
	<item>
		<title>By: Performance, Scalabilty and Architecture - Java and .NET Application Performance Management (dynaTrace Blog) &#187; Performance Antipatterns - Part 1</title>
		<link>http://blog.dynatrace.com/2009/01/07/how-to-find-invisible-performance-problems/comment-page-1/#comment-1097</link>
		<dc:creator>Performance, Scalabilty and Architecture - Java and .NET Application Performance Management (dynaTrace Blog) &#187; Performance Antipatterns - Part 1</dc:creator>
		<pubDate>Wed, 04 Feb 2009 23:04:18 +0000</pubDate>
		<guid isPermaLink="false">http://blog.dynatrace.com/?p=256#comment-1097</guid>
		<description>[...] at least as much effort on performance management than on ensuring functional compliance. In an earlier post introduced the concept of Performance Regression Testing and Architecture Validation and showed how [...]</description>
		<content:encoded><![CDATA[<p>[...] at least as much effort on performance management than on ensuring functional compliance. In an earlier post introduced the concept of Performance Regression Testing and Architecture Validation and showed how [...]</p>
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