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From Hasan Hasan <ha...@trialox.org>
Subject Re: [jira] Commented: (CLEREZZA-320) SSP rendering is slow: scala.tool.nsc.interpreter.AbstractFileClassLoader.findClass needs a lot of time to be executed
Date Sun, 10 Oct 2010 20:13:47 GMT
Karl, thanks for the explanation.


On Sun, Oct 10, 2010 at 1:58 PM, Karl Pauls (JIRA) <jira@apache.org> wrote:

>
>    [
> https://issues.apache.org/jira/browse/CLEREZZA-320?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12919595#action_12919595]
>
> Karl Pauls commented on CLEREZZA-320:
> -------------------------------------
>
> @Hasan, there are certain cases where classes from the outside expect that
> they can use any classloader to get to outside classes (e.g., swing). Thats
> why we have a magic bootdelegation in felix that detects these cases and
> bootdelegates automagically. This is one of the cases and I fixed it in the
> issue for ipojo iirc. However, it might very well be that we don't detect
> this special case because of your set-up. It looks like there is scala in
> the mix too etc. so maybe thats what prevents us form auto-bootdelegation
> (we only do it if we are sure  - when in doubt we don't)
>
> > SSP rendering is slow:
> scala.tool.nsc.interpreter.AbstractFileClassLoader.findClass needs  a lot of
> time to be executed
> >
> -----------------------------------------------------------------------------------------------------------------------
> >
> >                 Key: CLEREZZA-320
> >                 URL: https://issues.apache.org/jira/browse/CLEREZZA-320
> >             Project: Clerezza
> >          Issue Type: Bug
> >         Environment: in netbeans, during cpu profiling exclude all java
> core classes
> >            Reporter: Tsuyoshi Ito
> >            Assignee: Reto Bachmann-Gmür
> >            Priority: Blocker
> >         Attachments: org.clerezza.test.render.zip,
> page_reuest_wo_javacore.png
> >
> >
> > during profiling session we detected that rendering ssp is very slow. A
> lot of time is used to execute
> scala.tool.nsc.interpreter.AbstractFileClassLoader.findClass. Seems that
> each execution the classes are (re)loaded. IMO this should not be the case.
>
> --
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>
>

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