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https://issues.apache.org/jira/browse/NETBEANS-1593?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jaroslav Tulach updated NETBEANS-1593:
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Affects Version/s: 10.0
> Debugging slows down JavaScript execution 20x times
> ---------------------------------------------------
>
> Key: NETBEANS-1593
> URL: https://issues.apache.org/jira/browse/NETBEANS-1593
> Project: NetBeans
> Issue Type: Bug
> Components: debugger - Java
> Affects Versions: 10.0
> Reporter: Jaroslav Tulach
> Priority: Major
>
> While working on
> [PR-4|https://github.com/graalvm/graal-js-jdk11-maven-demo/pull/4] I realized
> that Truffle debugger support in NetBeans slows down execution 20x times.
> Without debugger the benchmark can execute in 150ms. With debugger it takes
> more than 3s. At current state the great Truffle debugging feature is not
> suitable for a demo.
> To reproduce, you need:
> * NetBeans 10 VC2
> * JDK11
> *
> [graal-js-jdk11-maven-demo|https://github.com/graalvm/graal-js-jdk11-maven-demo]
> at revision 2f851ca6d922
> Then you can debug the {{AppTest}} unit test and put a breakpoint to calls to
> {{eval}}, etc. Once the breakpoint is hit, remove it and continue. The rest
> of the execution will be slow - e.g. take more than 3s for each round.
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