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https://issues.apache.org/jira/browse/NETBEANS-4746?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17191189#comment-17191189
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Jaroslav Tulach commented on NETBEANS-4746:
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Comments from:
*
[Jesse|http://mail-archives.apache.org/mod_mbox/netbeans-dev/202009.mbox/%3CCAPFHdOu6fxOm%3DsKdOb-brHf8D9PHYVwDWRsdn0LEjpknmu-Ksg%40mail.gmail.com%3E]
- cold JVM is a problem
*
[Tim|http://mail-archives.apache.org/mod_mbox/netbeans-dev/202009.mbox/%3CCA%2BqecROFK1o1uNoPgUgW-_PKfP5Fouy4bJerLhOeNqdNmbsgtA%40mail.gmail.com%3E]
- I/O is the problem for large projects
Thank you guys.
> Running test in Maven is slower than in Ant
> -------------------------------------------
>
> Key: NETBEANS-4746
> URL: https://issues.apache.org/jira/browse/NETBEANS-4746
> Project: NetBeans
> Issue Type: Task
> Components: projects - Maven
> Affects Versions: 12.0
> Reporter: Jaroslav Tulach
> Assignee: Jaroslav Tulach
> Priority: Minor
> Attachments: justtest.diff, preexec-6.patch
>
>
> NetBeans users has just recently complained that Maven support is slower than
> Ant - some even claimed they [rather maintain dual Ant script
> support|http://mail-archives.apache.org/mod_mbox//netbeans-dev/202008.mbox/browser]
> than wait for Maven to launch. I've created this issue to investigate the
> problem.
> First of all we need a sample project: [^justtest.diff] - apply it {{patch
> -p1 <justtest.diff}} in an empty directory shall be enough. Then you can run
> it with Maven:
> {code:java}
> $ time JAVA_HOME=~/bin/jdk-8/ mvn -quiet
> -Dtest=com.mycompany.justtest.MainTest process-test-classes surefire:test
> -------------------------------------------------------
> T E S T S
> -------------------------------------------------------
> Running com.mycompany.justtest.MainTest
> Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.071 sec
> Results :Tests run: 1, Failures: 0, Errors: 0, Skipped: 0
> real 0m2,633s
> user 0m6,986s
> sys 0m0,257s
> {code}
> and you can also run it with Ant:
> {code:java}
> time JAVA_HOME=~/bin/jdk-8/ ant -q test-single
> -Djavac.includes=com/mycompany/justtest/MainTest.java
> -Dtest.includes=com/mycompany/justtest/MainTest.java
> BUILD SUCCESSFUL
> Total time: 1 second
> real 0m1,899s
> user 0m4,250s
> sys 0m0,244s
> {code}
> 2.6s vs. 1.9s! Really? Is that the problem? Probably not, I guess the
> difference is the integration into the IDE then.
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