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Posted to dev@tapestry.apache.org by "denis queffeulou (JIRA)" <de...@tapestry.apache.org> on 2008/09/01 17:54:44 UTC
[jira] Created: (TAPESTRY-2635) possible ognl cache problem
possible ognl cache problem
---------------------------
Key: TAPESTRY-2635
URL: https://issues.apache.org/jira/browse/TAPESTRY-2635
Project: Tapestry
Issue Type: Bug
Affects Versions: 4.1.5
Environment: linux fedora 4, jDK 1.6_05, Tomcat 6.0.13, Ognl 2.7.2
Reporter: denis queffeulou
I'm making some profiling on an web app made with Tapestry 4.1.5 which returns XML.
In JProfiler, I found that OGNL expressions compilation uses 40% of processing time.
As the JMeter script is requesting always the same page on the webapp, I'm wondering why the expressions are always compiled. The cache seems not to be used:
31896 invocations on ExpressionCache.getCompiledExpression
31140 invocations on Ognl.compileExpression
Another test with 5 pages after 2 hours:
34,2% 90528 invocations on ExpressionCache.getCompiledExpression
25,4% 90300 invocations on Ognl.compileExpression
My WAR is a big application, I can't put it here.
To reproduce, a single page with OGNL should be sufficent.
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[jira] Closed: (TAPESTRY-2635) possible ognl cache problem
Posted by "Marcus Schulte (JIRA)" <de...@tapestry.apache.org>.
[ https://issues.apache.org/jira/browse/TAPESTRY-2635?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Marcus Schulte closed TAPESTRY-2635.
------------------------------------
Resolution: Cannot Reproduce
Feel free to re-open with a small, valid example-app reproducing the problem.
> possible ognl cache problem
> ---------------------------
>
> Key: TAPESTRY-2635
> URL: https://issues.apache.org/jira/browse/TAPESTRY-2635
> Project: Tapestry
> Issue Type: Bug
> Affects Versions: 4.1.5
> Environment: linux fedora 4, jDK 1.6_05, Tomcat 6.0.13, Ognl 2.7.2
> Reporter: denis queffeulou
> Assignee: Marcus Schulte
>
> I'm making some profiling on an web app made with Tapestry 4.1.5 which returns XML.
> In JProfiler, I found that OGNL expressions compilation uses 40% of processing time.
> As the JMeter script is requesting always the same page on the webapp, I'm wondering why the expressions are always compiled. The cache seems not to be used:
> 31896 invocations on ExpressionCache.getCompiledExpression
> 31140 invocations on Ognl.compileExpression
> Another test with 5 pages after 2 hours:
> 34,2% 90528 invocations on ExpressionCache.getCompiledExpression
> 25,4% 90300 invocations on Ognl.compileExpression
> My WAR is a big application, I can't put it here.
> To reproduce, a single page with OGNL should be sufficent.
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[jira] Commented: (TAPESTRY-2635) possible ognl cache problem
Posted by "Marcus Schulte (JIRA)" <de...@tapestry.apache.org>.
[ https://issues.apache.org/jira/browse/TAPESTRY-2635?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12627516#action_12627516 ]
Marcus Schulte commented on TAPESTRY-2635:
------------------------------------------
Did a quick check unleashing wget on the workbench example. After the first page-load Ognl.compileExpression is never called again.
Do you perhaps, accidentally have caching disabled? Had you chosen to provide a working example of your problem I could have easily checked.
> possible ognl cache problem
> ---------------------------
>
> Key: TAPESTRY-2635
> URL: https://issues.apache.org/jira/browse/TAPESTRY-2635
> Project: Tapestry
> Issue Type: Bug
> Affects Versions: 4.1.5
> Environment: linux fedora 4, jDK 1.6_05, Tomcat 6.0.13, Ognl 2.7.2
> Reporter: denis queffeulou
> Assignee: Marcus Schulte
>
> I'm making some profiling on an web app made with Tapestry 4.1.5 which returns XML.
> In JProfiler, I found that OGNL expressions compilation uses 40% of processing time.
> As the JMeter script is requesting always the same page on the webapp, I'm wondering why the expressions are always compiled. The cache seems not to be used:
> 31896 invocations on ExpressionCache.getCompiledExpression
> 31140 invocations on Ognl.compileExpression
> Another test with 5 pages after 2 hours:
> 34,2% 90528 invocations on ExpressionCache.getCompiledExpression
> 25,4% 90300 invocations on Ognl.compileExpression
> My WAR is a big application, I can't put it here.
> To reproduce, a single page with OGNL should be sufficent.
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[jira] Assigned: (TAPESTRY-2635) possible ognl cache problem
Posted by "Marcus Schulte (JIRA)" <de...@tapestry.apache.org>.
[ https://issues.apache.org/jira/browse/TAPESTRY-2635?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Marcus Schulte reassigned TAPESTRY-2635:
----------------------------------------
Assignee: Marcus Schulte
> possible ognl cache problem
> ---------------------------
>
> Key: TAPESTRY-2635
> URL: https://issues.apache.org/jira/browse/TAPESTRY-2635
> Project: Tapestry
> Issue Type: Bug
> Affects Versions: 4.1.5
> Environment: linux fedora 4, jDK 1.6_05, Tomcat 6.0.13, Ognl 2.7.2
> Reporter: denis queffeulou
> Assignee: Marcus Schulte
>
> I'm making some profiling on an web app made with Tapestry 4.1.5 which returns XML.
> In JProfiler, I found that OGNL expressions compilation uses 40% of processing time.
> As the JMeter script is requesting always the same page on the webapp, I'm wondering why the expressions are always compiled. The cache seems not to be used:
> 31896 invocations on ExpressionCache.getCompiledExpression
> 31140 invocations on Ognl.compileExpression
> Another test with 5 pages after 2 hours:
> 34,2% 90528 invocations on ExpressionCache.getCompiledExpression
> 25,4% 90300 invocations on Ognl.compileExpression
> My WAR is a big application, I can't put it here.
> To reproduce, a single page with OGNL should be sufficent.
--
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