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https://issues.apache.org/jira/browse/SLING-4866?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Radu Cotescu resolved SLING-4866.
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Resolution: Cannot Reproduce
I figured out that this is not an issue of the JSP scripting engine.
The tests in question were initially run on a Sling Launchpad 7 instance, to
which the Sightly bundles were installed through the maven-launchpad-plugin.
The performance degradation was discovered after switching to the provisioning
model for the tests, which required Sling Launchpad 8-SNAPSHOT.
> JSP scripting engine performance degraded in org.apache.sling.scripting.jsp
> 2.1.6
> ---------------------------------------------------------------------------------
>
> Key: SLING-4866
> URL: https://issues.apache.org/jira/browse/SLING-4866
> Project: Sling
> Issue Type: Bug
> Components: Scripting
> Affects Versions: Scripting JSP 2.1.6
> Reporter: Radu Cotescu
> Priority: Critical
> Fix For: Scripting JSP 2.1.8
>
>
> The commit applied in
> [r1629144|https://svn.apache.org/viewvc?view=revision&revision=1629144] seems
> to have affected the JSP scripting engine performance.
> The Sightly JSP [performance
> tests|https://github.com/apache/sling/blob/trunk/bundles/scripting/sightly/testing-content/src/main/resources/SLING-INF/apps/sightlyperf/test/test.jsp]
> show a 5x degradation on my machine when compared to running the same tests
> on {{org.apache.sling.scripting.jsp}} 2.1.4.
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