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From o...@kompuart.pl (Leszek Gawron)
Subject Strange response time pattern + Cocoon performance
Date Fri, 06 Sep 2002 09:13:48 GMT
I have noticed something very strange in cocoon log :

/CocoonServlet: 'cdn/dataold/goods' Processed by Apache Cocoon 2.1-dev in 291 milliseconds.
/CocoonServlet: 'cdn/dataold/goods' Processed by Apache Cocoon 2.1-dev in 511 milliseconds.
/CocoonServlet: 'cdn/dataold/goods' Processed by Apache Cocoon 2.1-dev in 290 milliseconds.
/CocoonServlet: 'cdn/dataold/goods' Processed by Apache Cocoon 2.1-dev in 541 milliseconds.
/CocoonServlet: 'cdn/dataold/goods' Processed by Apache Cocoon 2.1-dev in 290 milliseconds.
/CocoonServlet: 'cdn/dataold/goods' Processed by Apache Cocoon 2.1-dev in 511 milliseconds.
/CocoonServlet: 'cdn/dataold/goods' Processed by Apache Cocoon 2.1-dev in 291 milliseconds.
/CocoonServlet: 'cdn/dataold/goods' Processed by Apache Cocoon 2.1-dev in 511 milliseconds.
/CocoonServlet: 'cdn/dataold/goods' Processed by Apache Cocoon 2.1-dev in 290 milliseconds.
/CocoonServlet: 'cdn/dataold/goods' Processed by Apache Cocoon 2.1-dev in 510 milliseconds.
/CocoonServlet: 'cdn/dataold/goods' Processed by Apache Cocoon 2.1-dev in 280 milliseconds.
/CocoonServlet: 'cdn/dataold/goods' Processed by Apache Cocoon 2.1-dev in 531 milliseconds.
/CocoonServlet: 'cdn/dataold/goods' Processed by Apache Cocoon 2.1-dev in 310 milliseconds.
/CocoonServlet: 'cdn/dataold/goods' Processed by Apache Cocoon 2.1-dev in 521 milliseconds.

These are subsequent calls to url from IE. The xsp is very simple:
<?xml version="1.0" encoding="ISO-8859-1"?>
<xsp:page language="java" xmlns:xsp="http://apache.org/xsp" xmlns:esql="http://apache.org/cocoon/SQL/v2">
	<content>
		<esql:connection>
			<esql:pool>cdn</esql:pool>
			<esql:execute-query>
				<esql:query>select Twr_TwrId, Twr_Grupa, Twr_EAN from cdn.towary</esql:query>
				<esql:results>
					<esql:row-results>
						<row>
							<esql:get-columns/>
						</row>
					</esql:row-results>
				</esql:results>
			</esql:execute-query>
		</esql:connection>
	</content>
</xsp:page>

I have been reporting also some performance problems concering xsp + esql (dev
snapshot from April vs snaspshot from July gave nearly 2 times lower response
times).
>From that time I have switched to Windows XP (everyting remained the same -
database, jdbc driver, tomcat version).

Yesterday I've downloaded new cocoon dev snapshot and I am shocked. What
*ALWAYS* took less than 400-500 ms now took more than 2 seconds !! I'm still
praying that it's Windows XP

I'm going to recheck the problem on some older cocoon version later this day
	ouzo

-- 
            __
         | /  \ |        Leszek Gawron            //  \\
        \_\\  //_/      ouzo@vip.net.pl          _\\()//_
         .'/()\'.     Phone: +48(600)341118     / //  \\ \
          \\  //  recursive: adj; see recursive  | \__/ |


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